Yamaha | F40F | Owner`s manual | Yamaha F40F Owner`s manual

6BG-9-39-1E0.book 1 ページ 2013年4月29日 月曜日 午前9時41分
F30
F40
OWNER’S MANUAL
Read this manual carefully before operating this
outboard motor.
LIT-18626-10-18
6BG-28199-39-E0
6BG-9-39-1E0.book 1 ページ 2013年4月29日 月曜日 午前9時41分
EMU25063
Les gaz d’échappement du moteur de ce produit
contiennent des substances chimiques connues
dans l’État de Californie pour provoquer le cancer,
des anomalies congénitales et des troubles de la
reproduction.
ZMU07696
Read this manual carefully before operating this outboard motor. Keep this
manual onboard in a waterproof bag when boating. This manual should stay
with the outboard motor if it is sold.
6BG-9-39-1E0.book 1 ページ 2013年4月29日 月曜日 午前9時41分
Important manual information
EMU44140
To the owner
Thank you for selecting a Yamaha outboard
motor. This Owner’s Manual contains information needed for proper operation, maintenance and care. A thorough understanding
of these simple instructions will help you obtain maximum enjoyment from your new
Yamaha. If you have any question about the
operation or maintenance of your outboard
motor, please consult a Yamaha dealer.
In this Owner’s Manual particularly important
information is distinguished in the following
ways.
: This is the safety alert symbol. It is
used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or
death.
EWM00781
WARNING
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
ECM00701
NOTICE
A NOTICE indicates special precautions
that must be taken to avoid damage to the
outboard motor or other property.
TIP:
A TIP provides key information to make procedures easier or clearer.
Yamaha continually seeks advancements in
product design and quality. Therefore, while
this manual contains the most current product information available at the time of printing, there may be minor discrepancies
between your machine and this manual. If
there is any question concerning this manual, please consult your Yamaha dealer.
To ensure long product life, Yamaha recommends that you use the product and perform
the specified periodic inspections and maintenance by correctly following the instructions in the owner’s manual. Any damage
resulting from neglect of these instructions is
not covered by warranty.
Some countries have laws or regulations restricting users from taking the product out of
the country where it was purchased, and it
may be impossible to register the product in
the destination country. Additionally, the warranty may not apply in certain regions. When
planning to take the product to another country, consult the dealer where the product was
purchased for further information.
If you purchased this outboard motor used,
see your Yamaha dealer to have it registered
in your name in Yamaha records.
TIP:
The F30A, F30EHA, F40A, F40EHA and the
standard accessories are used as a base for
the explanations and illustrations in this manual. Therefore some items may not apply to
every model.
EMU44150
F30, F40
OWNER’S MANUAL
©2013 by Yamaha Motor Co., Ltd.
1st Edition, May 2013
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan
6BG-9-39-1E0.book 1 ページ 2013年4月29日 月曜日 午前9時41分
Table of contents
Safety information............................. 1
Outboard motor safety ..................... 1
Propeller............................................ 1
Rotating parts.................................... 1
Hot parts ........................................... 1
Electric shock .................................... 1
Power trim and tilt ............................. 1
Engine shut-off cord (lanyard)........... 1
Gasoline ............................................ 1
Gasoline exposure and spills ............ 2
Carbon monoxide.............................. 2
Modifications ..................................... 2
Boating safety .................................. 2
Alcohol and drugs ............................. 2
Personal flotation devices (PFDs)..... 2
People in the water ........................... 2
Passengers ....................................... 2
Overloading....................................... 2
Avoid collisions ................................. 3
Weather ............................................ 3
Accident reporting ............................. 3
Boat education and training .............. 3
Passenger training ............................ 4
Boating safety publications ............... 4
Laws and regulations ........................ 4
Boating organizations....................... 4
Basic boating rules (Rules of the
road)............................................... 5
Steering and sailing rules and
sound signals.................................. 5
Rules when encountering vessels .... 5
Other special situations..................... 6
General information .......................... 9
Identification numbers record........... 9
Outboard motor serial number .......... 9
Key number....................................... 9
Read manuals and labels............... 10
Warning labels ............................... 10
Specifications and
requirements.................................... 13
Specifications ................................. 13
Installation requirements ................ 14
Boat horsepower rating ................... 14
Mounting motor ............................... 14
Remote control requirements......... 14
Battery requirements...................... 15
Specifications of Battery.................. 15
Mounting battery ............................. 15
Multiple batteries ............................. 15
Propeller selection ......................... 15
Start-in-gear protection .................. 16
Engine oil requirements ................. 16
Fuel requirements .......................... 17
Gasoline .......................................... 17
Gasoline Additives .......................... 18
Anti-fouling paint ............................ 18
Motor disposal requirements.......... 19
Emergency equipment ................... 19
Emission control information ......... 19
North American models................... 19
Star labels ....................................... 20
Components .................................... 22
Components diagram..................... 22
Fuel tank ......................................... 23
Fuel joint.......................................... 24
Fuel gauge ...................................... 24
Pressure relief tab ........................... 24
Fuel tank cap................................... 24
Air vent screw.................................. 24
Remote control box ......................... 24
Remote control lever ....................... 24
Neutral interlock trigger ................... 24
Neutral throttle lever........................ 25
Tiller handle .................................... 25
Gear shift lever ............................... 25
Throttle grip .................................... 25
Throttle indicator ............................ 26
Throttle friction adjuster................... 26
Engine shut-off cord (lanyard) and
clip................................................. 26
Engine stop button ......................... 27
Main switch ..................................... 27
Steering friction adjuster ................. 28
Power trim and tilt switch on
remote control or tiller handle ....... 28
Power trim and tilt switch on
bottom cowling .............................. 29
Variable trolling RPM switches........ 29
Trim tab with anode......................... 30
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Table of contents
Tilt lock mechanism ........................ 30
Tilt support knob ............................. 30
Cowling lock lever(s) (turn type)...... 31
Flushing device ............................... 31
Fuel filter/Water separator .............. 31
Alert indicator ................................. 32
Instruments and indicators ............ 33
Indicators ....................................... 33
Low oil pressure-alert indicator ....... 33
Overheat-alert indicator .................. 33
Digital tachometer .......................... 33
Tachometer ..................................... 34
Trim meter....................................... 34
Hour meter ...................................... 34
Low oil pressure-alert indicator ....... 34
Overheat-alert indicator .................. 35
Digital speedometer ....................... 35
Speedometer .................................. 35
Fuel gauge ...................................... 35
Trip meter / Clock / Voltmeter ......... 36
Fuel level-alert indicator .................. 37
Low battery voltage-alert
indicator ........................................ 37
Command Link Multifunction
Meters .......................................... 37
Command Link Multifunction
Tachometer .................................. 37
Start-up checks ............................... 38
Adjusting trolling speed ................... 39
Low oil pressure-alert...................... 39
Overheat alert ................................. 40
Water separator alert ...................... 40
Engine trouble alert ......................... 40
Low battery voltage-alert................. 41
Command Link Multifunction
Speed & Fuel Meter ..................... 41
Command Link Multifunction
Speedometer................................ 42
Command Link Multifunction Fuel
Management Meter ...................... 43
Engine control system.................... 44
Alert system ................................... 44
Overheat alert ................................. 44
Low oil pressure alert ...................... 44
Installation ....................................... 46
Installation...................................... 46
Mounting the outboard motor .......... 46
Operation ......................................... 48
First-time operation ........................ 48
Fill engine oil ................................... 48
Breaking in engine .......................... 48
Getting to know your boat ............... 48
Checks before starting engine ....... 48
Fuel level......................................... 48
Remove the top cowling.................. 49
Fuel system..................................... 49
Controls........................................... 49
Engine shut-off cord (lanyard)......... 50
Engine oil ........................................ 50
Engine ............................................. 51
Flushing device ............................... 51
Install top cowling............................ 51
Checking power trim and tilt
system........................................... 51
Battery............................................. 52
Filling fuel....................................... 52
Operating engine ........................... 54
Sending fuel (portable tank) ............ 54
Starting engine ................................ 56
Checks after starting engine .......... 58
Cooling water .................................. 58
Warming up engine........................ 59
Manual start and electric start
models .......................................... 59
Checks after engine warm up ........ 59
Shifting ............................................ 59
Stop switches .................................. 59
Shifting ........................................... 59
Stopping boat................................. 61
Trolling ........................................... 61
Adjusting trolling speed ................... 61
Stopping engine ............................. 61
Procedure........................................ 61
Trimming outboard motor............... 63
Adjusting trim angle (Power trim
and tilt) .......................................... 63
Adjusting trim angle for hydro tilt
models .......................................... 64
Adjusting boat trim .......................... 64
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Table of contents
Tilting up and down ........................ 65
Procedure for tilting up (hydro tilt
models) ......................................... 66
Procedure for tilting up (power trim
and tilt models) ............................. 66
Procedure for tilting down (hydro
tilt models) .................................... 67
Procedure for tilting down (power
trim and tilt models) ...................... 68
Shallow water ................................ 69
Hydro tilt models ............................. 69
Power trim and tilt models............... 70
Cruising in other conditions............ 71
Maintenance..................................... 72
Transporting and storing
outboard motor............................. 72
Storing outboard motor ................... 72
Procedure ....................................... 73
Lubrication ...................................... 75
Cleaning and anticorrosion
measures ...................................... 75
Flushing power unit ......................... 75
Cleaning the outboard motor .......... 76
Checking painted surface of
outboard motor ............................. 76
Periodic maintenance..................... 76
Replacement parts .......................... 77
Maintenance interval guidelines...... 77
Maintenance chart 1 ....................... 78
Maintenance chart 2 ....................... 80
Greasing ......................................... 81
Cleaning and adjusting spark
plug ............................................... 82
Inspecting idle speed ...................... 83
Changing engine oil ........................ 83
Inspecting wiring and connectors.... 86
Checking propeller .......................... 86
Removing propeller ......................... 87
Installing propeller ........................... 87
Changing gear oil ............................ 87
Inspecting and replacing
anode(s)........................................ 89
Checking battery (for electric start
models) ......................................... 89
Connecting the battery .................... 90
Disconnecting the battery................ 90
Trouble Recovery............................ 92
Troubleshooting ............................. 92
Temporary action in emergency .... 95
Impact damage ............................... 95
Replacing fuse ................................ 95
Power trim and tilt will not
operate.......................................... 96
Water separator-alert indicator
blinks while cruising ...................... 96
Starter will not operate .................... 98
Emergency starting engine ............. 99
Treatment of submerged motor ... 100
Consumer information ................. 101
YAMAHA FOUR-STROKE
OUTBOARD MOTOR
THREE-YEAR LIMITED
WARRANTY .............................. 101
IMPORTANT WARRANTY
INFORMATION IF YOU USE
YOUR YAMAHA OUTSIDE
THE U.S.A. OR CANADA .......... 103
6BG-9-39-1E0.book 1 ページ 2013年4月29日 月曜日 午前9時41分
Safety information
EMU33622
Outboard motor safety
Observe these precautions at all times.
EMU36501
Propeller
People can be injured or killed if they come
in contact with the propeller. The propeller
can keep moving even when the motor is in
neutral, and sharp edges of the propeller can
cut even when stationary.
 Stop the engine when a person is in the
water near you.
 Keep people out of reach of the propeller,
even when the engine is off.
EMU33630
Rotating parts
Hands, feet, hair, jewelry, clothing, PFD
straps, etc. can become entangled with internal rotating parts of the engine, resulting in
serious injury or death.
Keep the top cowling in place whenever possible. Do not remove or replace the cowling
with the engine running.
Only operate the engine with the cowling removed according to the specific instructions
in the manual. Keep hands, feet, hair, jewelry, clothing, PFD straps, etc. away from any
exposed moving parts.
EMU33640
Hot parts
During and after operation, engine parts are
hot enough to cause burns. Avoid touching
any parts under the top cowling until the engine has cooled.
EMU33650
Electric shock
Do not touch any electrical parts while starting or operating the engine. They can cause
shock or electrocution.
EMU33660
Power trim and tilt
Body parts can be crushed between the mo-
tor and the clamp bracket when the motor is
trimmed or tilted. Keep body parts out of this
area at all times. Be sure no one is in this
area before operating the power trim and tilt
mechanism.
The power trim and tilt switches operate
even when the main switch is off. Keep people be away from the switches whenever
working around the motor.
Never get under the lower unit while it is tilted, even when the tilt support lever is locked.
Severe injury could occur if the outboard motor accidentally falls.
EMU33671
Engine shut-off cord (lanyard)
Attach the engine shut-off cord so that the
engine stops if the operator falls overboard
or leaves the helm. This prevents the boat
from running away under power and leaving
people stranded, or running over people or
objects.
Always attach the engine shut-off cord to a
secure place on your clothing or your arm or
leg while operating. Do not remove it to leave
the helm while the boat is moving. Do not attach the cord to clothing that could tear
loose, or route the cord where it could become entangled, preventing it from functioning.
Do not route the cord where it is likely to be
accidentally pulled out. If the cord is pulled
during operation, the engine will shut off and
you will lose most steering control. The boat
could slow rapidly, throwing people and objects forward.
EMU33810
Gasoline
Gasoline and its vapors are highly flammable and explosive. Always, refuel according to the procedure on page 54 to
reduce the risk of fire and explosion.
1
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Safety information
EMU33820
Gasoline exposure and spills
Take care not to spill gasoline. If gasoline
spills, wipe it up immediately with dry rags.
Dispose of rags properly.
If any gasoline spills onto your skin, immediately wash with soap and water. Change
clothing if gasoline spills on it.
If you swallow gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get
immediate medical attention. Never siphon
fuel by mouth.
EMU33900
Carbon monoxide
This product emits exhaust gases which contain carbon monoxide, a colorless, odorless
gas which may cause brain damage or death
when inhaled. Symptoms include nausea,
dizziness, and drowsiness. Keep cockpit and
cabin areas well ventilated. Avoid blocking
exhaust outlets.
EMU33780
Modifications
Do not attempt to modify this outboard motor. Modifications to your outboard motor
may reduce safety and reliability, and render
the outboard unsafe or illegal to use.
EMU33740
Boating safety
This section includes a few of the many important safety precautions that you should
follow when boating.
EMU33710
Alcohol and drugs
Never operate after drinking alcohol or taking
drugs. Intoxication is one of the most common factors contributing to boating fatalities.
EMU40280
Personal flotation devices (PFDs)
Have an approved PFD on board for every
occupant. Yamaha recommends that you
must wear a PFD whenever boating. At a
2
minimum, children and non-swimmers
should always wear PFDs, and everyone
should wear PFDs when there are potentially
hazardous boating conditions.
EMU33731
People in the water
Always watch carefully for people in the water, such as swimmers, skiers, or divers,
whenever the engine is running. When
someone is in the water near the boat, shift
into neutral and stop the engine.
Stay away from swimming areas. Swimmers
can be hard to see.
The propeller can keep moving even when
the motor is in neutral. Stop the engine when
a person is in the water near you.
EMU33751
Passengers
Consult your boat manufacturer’s instructions for details about appropriate passenger
locations in your boat and be sure all passengers are positioned properly before accelerating and when operating above an idle
speed. Standing or sitting in non-designated
locations may result in being thrown either
overboard or within the boat due to waves,
wakes, or sudden changes in speed or direction. Even when people are positioned properly, alert your passengers if you must make
any unusual maneuver. Always avoid jumping waves or wakes.
EMU33760
Overloading
Do not overload the boat. Consult the boat
capacity plate or boat manufacturer for maximum weight and number of passengers. Be
sure that weight is properly distributed according to the boat manufacturers instructions. Overloading or incorrect weight
distribution can compromise the boats handling and lead to an accident, capsizing or
swamping.
6BG-9-39-1E0.book 3 ページ 2013年4月29日 月曜日 午前9時41分
Safety information
EMU33772
EMU44160
Avoid collisions
Accident reporting
Scan constantly for people, objects, and other boats. Be alert for conditions that limit your
visibility or block your vision of others.
Boat operators are required by law to file a
Boating Accident Report with their boating
law enforcement agency if their boat is involved in any of the following accidents:
1. There is loss of life or probable loss of
life.
2. There is personal injury that requires
medical attention beyond first aid.
3. There is property damage to boats or
other property over a certain amount.
4. There is complete loss of a boat.
Contact local law enforcement personnel if a
report is necessary.
ZMU06025
Operate defensively at safe speeds and
keep a safe distance away from people, objects, and other boats.
 Do not follow directly behind other boats or
waterskiers.
 Avoid sharp turns or other maneuvers that
make it hard for others to avoid you or understand where you are going.
 Avoid areas with submerged objects or
shallow water.
 Ride within your limits and avoid aggressive maneuvers to reduce the risk of loss
of control, ejection, and collision.
 Take early action to avoid collisions. Remember, boats do not have brakes, and
stopping the engine or reducing throttle
can reduce the ability to steer. If you are
not sure that you can stop in time before
hitting an obstacle, apply throttle and turn
in another direction.
EMU33790
Weather
Stay informed about the weather. Check
weather forecasts before boating. Avoid
boating in hazardous weather.
EMU44170
Boat education and training
For U.S.A.
Operators should take a boating safety
course. This may be required in your state.
Many of the organizations listed in the next
section can provide information about courses in your area.
You may also want to consider an Internetbased program for basic boater education.
The Online Boating Safety Course provided
by the BoatU.S. Foundation, is approved by
the National Association of State Boating
Law Administrators (NASBLA) and recognized by the United States Coast Guard.
Most, but not all, states accept this course to
meet their minimum requirements. While it
cannot replace an in-depth course such as
one offered by the U.S. Coast Guard, U.S.
Power Squadron, or other organization, this
online course does provide a general overview of the basics in boating safety, requirements, navigation, and operation. Upon
successful completion of the course, the
user can download a certificate of completion immediately or, for a small charge, request one by mail. To take this free course,
3
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Safety information
go to boatus.org.
For Canada
All operators of pleasure craft must illustrate
competency by means of a Pleasure Craft
Operators Card with the exception of Personal Water Craft used for rental purposes
which require a rental checklist be completed. Pleasure Craft Operators Cards can be
obtained following the completion of a competency course, with an on-line option. Details can be found on Transport Canada’s
website. www.tc.gc.ca
EMU33880
Passenger training
Make sure at least one other passenger is
trained to operate the boat in the event of an
emergency.
EMU33890
Boating safety publications
Be informed about boating safety. Additional
publications and information can be obtained
from many boating organizations.
EMU33590
Laws and regulations
Know the marine laws and regulations where
you will be boating- and obey them. Several
sets of rules prevail according to geographic
location, but all are basically the same as the
International Rules of the Road. The rules
presented in the following section are condensed- and have been provided for your
convenience only.
Contact the U.S. Coast Guard, the National
Association of State Boating Law Administrators, or your local Power Squadron for a
complete set of rules governing the waters in
which you will be using your boat.
In the U.S.A.
United States Coast Guard
Consumer Affairs Staff (G-BC)
Office of Boating, Public, and Consumer Affairs
U.S. Coast Guard Headquarters
Washington, D.C. 20593-0001
http://www.uscgboating.org/
United States Power Squadrons
1-888-FOR-USPS (1-888-367-8777)
http://www.usps.org/
Boat Owners Association of The United
States
1-800-336-BOAT (1-800-336-2628)
http://www.boatus.com/
National Association of State Boating
Law Administrators (NASBLA)
1500 Leestown Road, Suite 330
Lexington, KY 40511 859-225-9497
http://www.nasbla.org/
National Marine Manufacturers Association (NMMA)
200 East Randolph Drive
Suite 5100
Chicago, IL 60601
http://www.nmma.org/
Marine Retailers Association of America
155 N. Michigan Ave. Chicago,
IL 60304
http://www.mraa.com/
EMU44180
Boating organizations
The following organizations provide boating
safety training and information about boating
safety and laws.
4
In the Canada
National Marine Manufacturers Association Canada
14 McEwan Drive
6BG-9-39-1E0.book 5 ページ 2013年4月29日 月曜日 午前9時41分
Safety information
Suite 8
Bolton, ON
L7E 1H1
http://www.nmma.org/
EMU33691
Basic boating rules (Rules of
the road)
Just as there are rules that apply when you
are driving on streets and highways, there
are waterway rules that apply when you are
driving your boat. These rules are used internationally. (For U.S.A.: and are also enforced by the United States Coast Guard and
local agencies.) You should be aware of
these rules, and follow them whenever you
encounter another vessel on the water.
EMU33700
Steering and sailing rules and sound
signals
Whenever two vessels on the water meet
one another, one vessel has the right-ofway; it is called the “stand-on” vessel. The
vessel that does not have the right-of-way is
called the “give-way” or “burdened”vessel.
These rules determine which vessel has the
right-of-way, and what each vessel should
do.
Stand-on vessel
The vessel with the right-of-way has the duty
to continue its course and speed, except to
avoid an immediate collision. When you
maintain your direction and speed, the other
vessel will be able to determine how best to
avoid you.
Give-way vessel
The vessel that does not have the right-ofway has the duty to take positive and timely
action to stay out of the way of the Stand-On
vessel. Normally, you should not cross in
front of the vessel with the right-of-way. You
should slow down or change directions briefly and pass behind the other vessel. You
should always move in such a way that the
operator of the other vessel can see what
you are doing.
“ The general prudential rule ”
This rule is called Rule 2 in the International
Rules and says,
“ In obeying and construing these rules due
regard shall be had to all dangers of navigation and collision, and to any special circumstances, which may render a departure from
the above rules necessary in order to avoid
immediate danger.”
In other words, follow the standard rules except when a collision will occur unless both
vessels try to avoid each other. If that is the
case, both vessels become “ Give-Way ”
vessels.
EMU25521
Rules when encountering vessels
There are three main situations that you may
encounter with other vessels which could
lead to a collision unless the Steering Rules
are followed:
Meeting: (you are approaching another vessel head-on)
Crossing: (you are traveling across the other vessel’s path)
Overtaking: (you are passing or being
passed by another vessel)
In the following illustration, your boat is in the
center. You should give the right-of-way to
any vessels shown in white area (you are the
Give-Way vessel). Any vessels in the shaded area must yield to you (they are the GiveWay vessels). Both you and the meeting
vessel must alter course to avoid each other.
5
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Safety information
Meeting
If you are meeting another power vessel
head on, and are close enough to run the risk
of collision, neither of you has the right-ofway Both of you should alter course to avoid
an accident. You should keep the other vessel on your port (left) side. This rule doesn’t
apply if both of you will clear one another if
you continue on your set course and speed.
Overtaking
If you are passing another vessel, you are
the “Give-Way” vessel. This means that the
other vessel is expected to maintain its
course and speed. You must stay out of its
way until you are clear of it. Likewise, if another vessel is passing you, you should
maintain your speed and direction so that the
other vessel can steer itself around you.
EMU25531
Other special situations
Crossing
When two power driven vessels are crossing
each other’s path close enough to run the
risk of collision, the vessel which has the other on the starboard (right) side must keep out
of the way of the other. If the other vessel is
on your right, you must keep out of its way;
you are the Give-Way vessel. If the other
vessel is on your port (left) side, remember
that you should maintain course and direction, provided the other vessel gives you the
right-of-way as it should.
6
There are three other rules you should be
aware of when driving your boat around other vessels.
Narrow channels and bends
When navigating in narrow channels, you
should keep to the right when it is safe and
practical to do so. If the operator of a powerdriven vessel is preparing to go around a
bend that may obstruct the view of other water vessels, the operator should sound a prolonged blast on the whistle (4 to 6 seconds).
If another vessel is around the bend, it too
should sound the whistle. Even if no reply is
heard, however, the vessel should still proceed around the bend with caution. If you
navigate such waters with your boat, you will
need to carry a portable air horn, available
from local marine supply stores.
Fishing vessel right-of-way
All vessels that are fishing with nets, lines or
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Safety information
trawls are considered to be “fishing vessels”
under the International Rules. Vessels with
trolling lines are not considered fishing vessels. Fishing vessels have the right-of-way
regardless of position. Fishing vessels cannot, however, impede the passage of other
vessels in narrow channels.
Sailing vessel right-of-way
Sailing vessels should normally be given the
right-of-way. The exceptions to this are:
1. When the sailing vessel is overtaking the
power-driven vessel, the power-driven
vessel has the right-of-way.
2. Sailing vessels should keep clear of any
fishing vessel.
3. In a narrow channel, a sailing vessel
should not hamper the safe passage of
a power-driven vessel that can navigate
only in such a channel.
Reading buoys and other markers
The waters of the United States are marked
for safe navigation by the lateral system of
buoyage. Simply put, buoys and markers
have an arrangement of shapes, colors,
numbers and lights to show which side of the
buoy a boater should pass on when navigating in a particular direction. The markings on
these buoys are oriented from the perspective of being entered from seaward (the boater is going towards the port). This means that
red buoys are passed on the starboard
(right) side when proceeding from open water into port, and black buoys are to port (left)
side. When navigating out of port, your position with respect to the buoys should be reversed; red buoys should be to port and
black buoys to starboard.
Many bodies of water used by boaters are
entirely within the boundaries of a particular
state. The Uniform State Waterway Marking
System has been devised for these waters.
This system uses buoys and signs with distinctive shapes and colors to show regulatory
or advisory information. These markers are
white with black letters and orange boarders.
They signify speed zones, restricted areas,
danger areas, and general information.
Remember, markings may vary by geographic location. Always consult local boating authorities before driving your boat in
unfamiliar waters.
7
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Safety information
ZMU01708
8
6BG-9-39-1E0.book 9 ページ 2013年4月29日 月曜日 午前9時41分
General information
EMU25171
Identification numbers record
reference in case you need a new key.
EMU25184
Outboard motor serial number
The outboard motor serial number is
stamped on the label attached to the port
side of the clamp bracket.
Record your outboard motor serial number in
the spaces provided to assist you in ordering
spare parts from your Yamaha dealer or for
reference in case your outboard motor is stolen.
1. Key number
1
ZMU06390
1. Outboard motor serial number location
EMU25191
Key number
If a main key switch is equipped with the motor, the key identification number is stamped
on your key as shown in the illustration.
Record this number in the space provided for
9
6BG-9-39-1E0.book 10 ページ 2013年4月29日 月曜日 午前9時41分
General information
EMU33523
Read manuals and labels
Before operating or working on this outboard motor:
 Read this manual.
 Read any manuals supplied with the boat.
 Read all labels on the outboard motor and the boat.
If you need any additional information, contact your Yamaha dealer.
EMU33832
Warning labels
If these labels are damaged or missing, contact your Yamaha dealer for replacements.
F30, F40
2
1
3
ZMU07681
10
6BG-9-39-1E0.book 11 ページ 2013年4月29日 月曜日 午前9時41分
General information
2
1
3
ZMU05740
EMU33912
Contents of labels
The above warning labels mean as follows.
1
EWM01691
WARNING
Emergency starting does not have startin-gear protection. Ensure shift control is
in neutral before starting engine.
2
EWM01681
WARNING
3
EWM01671
WARNING
Read Owner’s Manuals and labels.
 Wear an approved personal flotation
device (PFD).
 Attach engine shut-off cord (lanyard) to
your PFD, arm, or leg so the engine
stops if you accidentally leave the
helm, which could prevent a runaway
boat.

Keep hands, hair, and clothing away
from rotating parts while the engine is
running.
 Do not touch or remove electrical parts
when starting or during operation.

11
6BG-9-39-1E0.book 12 ページ 2013年4月29日 月曜日 午前9時41分
General information
EMU35132
Symbols
The following symbols mean as follows.
Electrical hazard
Notice/Warning
ZMU05666
ZMU05696
Read Owner’s Manual
ZMU05664
Hazard caused by continuous rotation
ZMU05665
12
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Specifications and requirements
EMU34521
Specifications
TIP:
“(AL)” stated in the specification data below
represents the numerical value for the aluminum propeller installed.
Likewise, “(SUS)” represents the value for
stainless steel propeller installed and “(PL)”
for plastic propeller installed.
EMU2821S
Dimension and weight:
Overall length:
F30A 698 mm (27.5 in)
F30EHA 1362 mm (53.6 in)
F40A 698 mm (27.5 in)
F40EHA 1362 mm (53.6 in)
Overall width:
384 mm (15.1 in)
Overall height L:
1350 mm (53.1 in)
Motor transom height L:
536 mm (21.1 in)
Dry weight (AL) L:
F30A 98 kg (216 lb)
F30EHA 102 kg (225 lb)
F40A 98 kg (216 lb)
F40EHA 102 kg (225 lb)
Performance:
Full throttle operating range:
5000–6000 r/min
Rated power:
F30A 22.1 kW (30 HP)
F30EHA 22.1 kW (30 HP)
F40A 29.4 kW (40 HP)
F40EHA 29.4 kW (40 HP)
Idle speed (in neutral):
750-850 r/min
Power unit:
Type:
4-stroke SOHC L3 6valves
Total displacement:
747 cm3 (45.6 c.i.)
Bore  stroke:
65.0  75.0 mm (2.56  2.95 in)
Ignition system:
CDI
Spark plug (NGK):
DPR6EB-9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Steering system:
F30A Remote steering
F30EHA Tiller handle
F40A Remote steering
F40EHA Tiller handle
Starting system:
Electric starter
Starting carburetion system:
Fuel injection
Valve clearance IN (cold engine):
0.15–0.25 mm (0.0059–0.0098 in)
Valve clearance EX (cold engine):
0.25–0.35 mm (0.0098–0.0138 in)
Cold cranking amps (CCA/SAE):
380–1150 A
Marine cranking amps (MCA/ABYC):
502–1370 A
Min. reserve capacity (RC/SAE):
124 minutes
Maximum generator output:
17 A
Lower unit:
Gear shift positions:
Forward-neutral-reverse
Gear ratio:
2.00(26/13)
Trim and tilt system:
F30A Power trim and tilt
F30EHA Hydro tilt
F40A Power trim and tilt
F40EHA Hydro tilt
13
6BG-9-39-1E0.book 14 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
Propeller mark:
G
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. pump octane number (PON):
86
Fuel tank capacity:
25 L (6.60 US gal, 5.50 Imp.gal)
Recommended engine oil:
YAMALUBE 4M FC-W or 4-stroke
outboard motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SE/SF/SG/SH/SJ/SL
Engine oil quantity (without oil filter replacement):
1.5 L (1.59 US qt, 1.32 Imp.qt)
Engine oil quantity (with oil filter replacement):
1.7 L (1.80 US qt, 1.50 Imp.qt)
Lubrication system:
Wet sump
Recommended gear oil:
Yamalube Marine Gearcase Lube or
Hypoid gear oil
Recommended gear oil grade:
SAE 90 API GL-4
Gear oil quantity:
0.430 L (0.455 US qt, 0.378 Imp.qt)
Tightening torque:
Spark plug:
18 Nm (1.84 kgf-m, 13.3 ft-lb)
Propeller nut:
35 Nm (3.57 kgf-m, 25.8 ft-lb)
Engine oil drain bolt:
27 Nm (2.75 kgf-m, 19.9 ft-lb)
Engine oil filter:
18 Nm (1.84 kgf-m, 13.3 ft-lb)
14
EMU33554
Installation requirements
EMU33564
Boat horsepower rating
EWM01560
WARNING
Overpowering a boat can cause severe
instability.
Before installing the outboard motor(s), confirm that the total horsepower of your outboard motor(s) does not exceed the boats
maximum horsepower rating. See the boat’s
capacity plate or contact the manufacturer.
EMU33571
Mounting motor
EWM01570
WARNING
Improper mounting of the outboard motor could result in hazardous conditions such as poor handling, loss of
control, or fire hazards.
 Because the motor is very heavy, special equipment and training is required
to mount it safely.

Your dealer or other person experienced in
proper rigging should mount the motor using
correct equipment and complete rigging instructions. For further information, see page
46.
EMU33581
Remote control requirements
EWM01580
WARNING
If the engine starts in gear, the boat can
move suddenly and unexpectedly, possibly causing a collision or throwing
passengers overboard.
 If the engine ever starts in gear, the
start-in-gear protection device is not
working correctly and you should discontinue using the outboard. Contact

6BG-9-39-1E0.book 15 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
your Yamaha dealer.
The remote control unit must be equipped
with a start-in-gear protection device(s). This
device prevents the engine from starting unless it is in neutral.
EMU25694
Battery requirements
EMU25714
Specifications of Battery
Use a fully charged battery that meets the
following specifications. The engine cannot
be started if battery voltage is too low.
Cold cranking amps (CCA/SAE):
380–1150 A
Marine cranking amps (MCA/ABYC):
502–1370 A
Min. reserve capacity (RC/SAE):
124 minutes
ECM01061
NOTICE
Do not use a battery that does not meet
the specified capacity. If a battery that
does not meet specifications is used, the
electric system could perform poorly or
be overloaded, causing electric system
damage.
EMU36290
Mounting battery
Mount the battery holder securely in a dry,
well-ventilated, vibration-free location in the
boat. WARNING! Do not put flammable
items, or loose heavy or metal objects in
the same compartment as the battery.
Fire, explosion or sparks could result.
about battery selection and correct wiring.
EMU34195
Propeller selection
Next to selecting an outboard motor, selecting the right propeller is one of the most important purchasing decisions a boater can
make. The type, size, and design of your propeller have a direct impact on acceleration,
top speed, fuel economy, and even engine
life. Yamaha designs and manufactures propellers for every Yamaha outboard motor
and every application.
Your outboard motor came with a Yamaha
propeller selected to perform well over a
range of applications, but there may be uses
where a different propeller would be more
appropriate.
Your Yamaha dealer can help you select the
right propeller for your boating needs. Select
a propeller that will allow the engine to reach
the middle or upper half of the operating
range at full throttle with the maximum boatload. Generally, select a larger pitch propeller for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry
loads that vary widely, select the propeller
that lets the engine run in the proper range
for your maximum load but remember that
you may need to reduce your throttle setting
to stay within the recommended engine
speed range when carrying lighter loads.
To check the propeller, see page 86.
[EWM01820]
EMU36300
Multiple batteries
To connect multiple batteries, such as for
multiple engine configurations or for an accessory battery, consult your Yamaha dealer
15
6BG-9-39-1E0.book 16 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
motor will be used.
x
1
2 3
ZMU04607
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
x
1
Recommended engine oil:
YAMALUBE 4M FC-W or 4-stroke outboard motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SE/SF/SG/SH/SJ/SL
Recommended engine oil grade 2:
SAE 15W-40/20W-40/20W-50
API SH/SJ/SL
Engine oil quantity (without oil filter replacement):
1.5 L (1.59 US qt, 1.32 Imp.qt)
Engine oil quantity (with oil filter replacement):
1.7 L (1.80 US qt, 1.50 Imp.qt)
If oil grades listed under Recommended engine oil grade 1 are not available, select an
alternative oil grade listed under Recommended engine oil grade 2.
Recommended engine oil grade 1
2 3
SAE
ZMU04606
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
EMU25770
Start-in-gear protection
Yamaha outboard motors or Yamaha-approved remote control units are equipped
with start-in-gear protection device(s). This
feature permits the engine to be started only
when it is in neutral. Always select neutral
before starting the engine.
EMU41952
Engine oil requirements
Select an oil grade according to the average
temperatures in the area where the outboard
16
API
-4
14
32
50
68
86
104
122˚F
-20
-10
0
10
20
30
40
50˚C
10W–30
10W–40
5W–30
SE
SF
SG
SH
SJ
SL
ZMU06854
6BG-9-39-1E0.book 17 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
Recommended engine oil grade 2
SAE
API
-4
14
32
50
68
86
104
122˚F
-20
-10
0
10
20
30
40
50˚C
15W–40
SH
SJ
SL
20W–40
20W–50
ZMU06855
EMU36360
Fuel requirements
EMU41331
Gasoline
Use a good quality gasoline that meets the
minimum octane requirement. If knocking or
pinging occurs, use a different brand of gasoline or premium unleaded fuel. Yamaha
recommends that you use alcohol-free gasoline (see Gasoline with Ethanol) whenever
possible.
The use of a poor quality gasoline may result
in starting and running problems. If you encounter drivability problems, which you suspect could be related to the fuel you are
using, we recommend that you switch to a
recognized high quality brand of gasoline,
such as a gasoline that is advertised as Top
Tier Detergent Gasoline. Failure to comply
with these recommendations may also result
in unscheduled maintenance, fuel system
damage, and internal engine damage.
Recommended fuel:
Regular unleaded gasoline
Min. pump octane number (PON):
86
ECM01981
NOTICE

Do not use leaded gasoline. Leaded
gasoline can seriously damage the engine.
 Avoid getting water and contaminants
in the fuel tank. Contaminated fuel can
cause poor performance or engine
damage. Use only fresh gasoline that
has been stored in clean containers.
Gasoline with Ethanol
Two types of gasoline are commonly available in the U.S.A. and Canada for use in automobiles and boats: conventional gasoline
without Ethanol and gasoline with Ethanol,
which is typically referred to as E10 gasoline.
According to federal regulations, E10 gasoline may contain up to 10% Ethanol.
A high quality gasoline without Ethanol is the
preferred fuel for your Yamaha outboard motor. However, if gasoline with Ethanol is the
only fuel available in your area, your Yamaha
outboard motor is calibrated to run properly
on fresh E10 gasoline that meets the minimum octane requirement specified for this
model.
ECM02401
NOTICE
Never use a gasoline for your outboard
motor that contains more than 10% Ethanol, such as E15 which contains 15% Ethanol or E85 which contains 85% Ethanol,
or gasoline containing any amount of
Methanol. These fuels can cause starting
and running problems, as well as serious
fuel system and internal engine damage.
Gasoline containing ethanol has several
properties that may cause boat fuel system
problems.
 Ethanol is a strong solvent (cleaning
agent) that can clean gum and varnish deposits from a boat’s fuel system, particularly in older boats, as well as tanks and pipes
17
6BG-9-39-1E0.book 18 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
used in gasoline distribution. These released deposits contaminate the fuel and
can cause problems, such as clogged fuel
filters, carburetors, or fuel injectors, which
could result in engine damage.
 Ethanol may dissolve resins used in the
construction of fiberglass fuel tanks. The
dissolved resins contaminate the fuel and
can cause problems, such as clogged fuel
filters, carburetors, or fuel injectors, which
could result in engine damage.
 Ethanol is hygroscopic (has a strong attraction to water). Therefore, any water
that inadvertently enters the fuel system,
including moisture that is absorbed from
the air, will mix with the ethanol in the gasoline. If the amount of water is excessive,
the ethanol and water mixture will separate
from the gasoline in a layer at the bottom
of the fuel tank. This ethanol and water
mixture is very corrosive to aluminum fuel
tanks and fuel system components.
 The usable life span of E10 gasoline may
be shorter than the normal length of offseason boat storage, causing starting and
running problems related to stale fuel.
For more information on using fuel containing ethanol, visit: http://www.yamaha-motor.com
Gasoline Filtration
Yamaha outboard motors are equipped with
internal fuel filters. However, excessive water or debris entering your engine’s fuel system could prematurely clog the internal
filters, causing starting and running problems, fuel system damage, and internal engine damage. Therefore, it is recommended
that an external 10-micron water-separating
fuel filter be installed on your boat and serviced frequently. Consult your authorized
Yamaha dealer for a 10-micron filter that
18
meets your engine’s requirements.
EMU41341
Gasoline Additives
Gasoline blends change to meet automobile
emission regulations and economic conditions. Additives, added by gasoline distributors, necessary for proper automobile engine
operation and durability, may not be sufficient for typical boat applications. Intake
valve and combustion chamber deposits
may accumulate in boat engines more rapidly than encountered in automotive use. In addition, gasoline used for boating will typically
age longer between refills than gasoline
used in automobiles, resulting in stale and
unusable gasoline that may cause starting
and running problems, fuel system damage,
and internal engine damage.
Yamaha recommends the use of two Yamalube gasoline additives to reduce internal
deposits and extend the storage life of gasoline. Continuous use of Yamalube Ring Free
Fuel Additive Plus reduces harmful internal
deposits. Yamalube Fuel Stabilizer & Conditioner Plus added to fresh gasoline will help
protect the fuel system from varnishing while
helping to keep the gasoline’s octane level
from decreasing excessively during storage.
Other additives may also be available on the
market that may have varying degrees of effectiveness. Consult your Yamaha dealer
concerning what may work best for the locally available gasoline and environmental conditions.
EMU41350
Anti-fouling paint
A clean hull is required to maintain your
boat’s performance. Boats moored in the water should be protected from marine growth
(barnacles, mussels, and marine plants). If
approved by regulations for your area, the
6BG-9-39-1E0.book 19 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
bottom of the hull can be coated with an antifouling paint to inhibit marine growth.
Anti-fouling paints specifically formulated for
use on aluminum may be applied to the outboard motor. The original Yamaha paint surface may be scuffed lightly before applying
anti-fouling paint, but do not remove the original paint. Removal of the original paint will
increase the rate of corrosion.
ECM02410
NOTICE
Anti-fouling paint for fiberglass and wood
may contain materials, such as copper,
graphite, and tin, that can cause corrosion if applied to aluminum boats and
outboard motor components. Never apply these types of paint to your outboard
motor because rapid corrosion damage
could occur.
about discarding the motor.
EMU36352
Emergency equipment
Keep the following items onboard in case
there is trouble with the outboard motor.
 A tool kit with assorted screwdrivers, pliers, wrenches (including metric sizes), and
electrical tape.
 Waterproof flashlight with extra batteries.
 An extra engine shut-off cord (lanyard)
with clip.
 Spare parts, such as an extra set of spark
plugs.
Consult your Yamaha dealer for details.
EMU25222
Emission control information
EMU25230
North American models
This engine conforms to U.S. Environmental
Protection Agency (EPA) regulations for marine SI engines. See the label affixed to your
engine for details.
EMU31561
Approval label of emission control certificate
This label is attached to the bottom cowling.
New Technology; (4-stroke) MFI
Sacrificial anodes are attached to the outboard motor to provide corrosion protection
and must never be painted.
1
ECM02420
NOTICE
Painted sacrificial anodes will not provide
corrosion protection.
EMU36341
Motor disposal requirements
ZMU06447
1. Approval label location
Never illegally discard (dump) the motor.
Yamaha recommends consulting the dealer
19
6BG-9-39-1E0.book 20 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
EMU25274
Star labels
EMISSION CONTROL INFORMATION
MFI
THIS ENGINE CONFORMS TO
CALIFORNIA AND U.S. EPA EXHAUST
REGULATIONS FOR SI MARINE ENGINES. REFER TO THE OWNER'S
MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
MEETS U.S. EPA EVAP STANDARDS USING CERTIFIED COMPONENTS.
FAMILY:
FELs(HC+NOx / CO):
/
g/kW-hr MAX POWER:
kW
DISPLACEMENT:
liters IDLE SPEED:
±
rpm IN NEUTRAL
SPARK PLUG GAP (mm):
SPARK PLUG:
VALVE LASH (mm) IN:
EX:
FUEL: GASOLINE
Your outboard motor is labeled with a California Air Resources Board (CARB) star label. See below for a description of your
particular label.
YAMAHA MOTOR CO.,LTD.
INFORMATION ANTIPOLLUTION
MFI
CE MOTEUR EST CONFORME AUX NORMES D’ÉMISSIONS
EPA DES É.-U. ET DE LA
CALIFORNIE POUR MOTEURS MARINS À ÉTINCELLE. POUR LES SPÉCIFICATIONS ET LES
RÉGLAGES À EFFECTUER, CONSULTEZ LE MANUEL DU PROPRIÉTAIRE. INSTALLÉ AVEC
LES COMPOSANTS HOMOLOGUÉS, IL SATISFAIT AUX NORMES EVAP EPA DES É.-U.
FAMILLE :
CYLINDRÉE :
litre
BOUGIE :
CARBURANT : ESSENCE
FELs(HC+NOx / CO):
/
g/kW-h PUISS. MAX. :
RALENTI :
±
tr/mm AU POINT MORT
BOUGIE-ÉCARTEMENT (mm) :
JEU DE SOUPAPES (mm) ADM:
ÉCH:
kW
1
YAMAHA MOTOR CO.,LTD.
ZMU06895
ZMU06442
EMU25263
Manufactured date label
This label is attached to the clamp bracket or
the swivel bracket.
1
ZMU06689
1. Star labels location
EMU40330
One Star—Low Emission
The one-star label identifies engines that
meet the Air Resources Board’s Personal
Watercraft and Outboard marine engine
2001 exhaust emission standards. Engines
meeting these standards have 75% lower
emissions than conventional carbureted twostroke engines. These engines are equivalent to the U.S. EPA’s 2006 standards for
marine engines.
1. Manufactured date label location
ZMU01702
20
6BG-9-39-1E0.book 21 ページ 2013年4月29日 月曜日 午前9時41分
Specifications and requirements
EMU40340
EMU33861
Two Stars—Very Low Emission
The two-star label identifies engines that
meet the Air Resources Board’s Personal
Watercraft and Outboard marine engine
2004 exhaust emission standards. Engines
meeting these standards have 20% lower
emissions than One Star-Low-Emission engines.
Four Stars—Super Ultra Low Emission
The four-star label identifies engines that
meet the Air Resources Board’s Sterndrive
and Inboard marine engine 2009 exhaust
emission standards. Personal Watercraft
and Outboard marine engines may also
comply with these standards. Engines meeting these standards have 90% lower emissions than One Star-Low-Emission engines.
ZMU01703
ZMU05663
EMU40350
Three Stars—Ultra Low Emission
The three-star label identifies engines that
meet the Air Resources Board’s Personal
Watercraft and Outboard marine engine
2008 exhaust emission standards or the
Sterndrive and Inboard marine engine 20032008 exhaust emission standards. Engines
meeting these standards have 65% lower
emissions than One Star-Low-Emission engines.
ZMU01704
21
6BG-9-39-1E0.book 22 ページ 2013年4月29日 月曜日 午前9時41分
Components
EMU2579Y
Components diagram
TIP:
* May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer).
F30, F40
17
16 14
15
1
13
12
11
2
10
3
19 18
22
21
9
20
4
23
24
5
8
6
25
26
YAMAHA
SPEED
Km/h
knot
mph
km
mile
TRIP
7
1. Top cowling
2. Water separator
3. Cowling lock lever
4. Anode
5. Anti-cavitation plate
6. Trim tab (anode)
7. Propeller*
8. Cooling water inlet
9. Clamp bracket
10. Power trim and tilt switch*
11. Throttle grip*
12. Variable trolling RPM switch*
13. Gear shift lever*
14. Tiller handle*
15. Clip*
22
TIME
set
BATT
mode
ZMU07682
16. Engine stop button/Engine shut-off switch*
17. Main switch*
18. Alert indicator*
19. Steering friction adjuster*
20. Tilt lock lever*
21. Tilt support knob
22. Flushing device
23. Remote control box (side mount type)*
24. Fuel tank*
25. Digital tachometer*
26. Digital speedometer*
6BG-9-39-1E0.book 23 ページ 2013年4月29日 月曜日 午前9時41分
Components
1
2
3
4
5
6
ZMU05429
1. Tachometer unit (Square type)*
2. Tachometer unit (Round type)*
3. Speedometer unit (Square type)*
4. Speed & fuel meter unit (Square type)*
5. Speed & fuel meter unit (Round type)*
6. Fuel management meter unit (Square type)*
1
2
4
EMU25803
Fuel tank
If your model was equipped with a portable
fuel tank, its function is as follows.
5
3
EWM00020
WARNING
The fuel tank supplied with this engine is
its dedicated fuel reservoir and must not
be used as a fuel storage container. Commercial users should conform to relevant
licensing or approval authority regulations.
3
ZMU07442
1. Fuel joint
2. Fuel gauge
3. Pressure relief tab
4. Fuel tank cap
23
6BG-9-39-1E0.book 24 ページ 2013年4月29日 月曜日 午前9時41分
Components
5. Air vent screw
EMU25830
Fuel joint
This joint is used to connect the fuel line.
EMU43120
Fuel gauge
This gauge shows the approximate amount
of fuel remaining in the fuel tank.
EMU43150
Pressure relief tab
This is attached to the filler hole of the fuel
tank.
EMU43130
Fuel tank cap
This cap seals the fuel tank. To loosen the
cap, press and hold the pressure relief tab
and turn the cap counterclockwise.
2. Remote control lever
3. Neutral interlock trigger
4. Neutral throttle lever
5. Main switch
6. Engine shut-off switch
7. Throttle friction adjuster
EMU26190
Remote control lever
Moving the lever forward from the neutral position engages forward gear. Pulling the lever back from neutral engages reverse. The
engine will continue to run at idle until the lever is moved about 35 (a detent can be felt).
Moving the lever farther opens the throttle,
and the engine will begin to accelerate.
EMU43141
Air vent screw
This screw is on the fuel tank cap. When
turning the air vent screw counterclockwise,
it is loosened and the pressure in the fuel
tank is released to a certain pressure. Air is
allowed to enter the fuel tank while operating
the engine.
EMU26181
Remote control box
The remote control lever actuates both the
shifter and the throttle. The electrical switches are mounted on the remote control box.
1. Neutral “ ”
2. Forward “ ”
3. Reverse “ ”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
EMU26201
Neutral interlock trigger
To shift out of neutral, first pull the neutral interlock trigger up.
1. Power trim and tilt switch
24
6BG-9-39-1E0.book 25 ページ 2013年4月29日 月曜日 午前9時41分
Components
1. Neutral interlock trigger
EMU26212
Neutral throttle lever
To open the throttle without shifting into either forward or reverse, put the remote control lever in the neutral position and lift the
neutral throttle lever.
1. Fully open
2. Fully closed
TIP:
The neutral throttle lever will operate only
when the remote control lever is in neutral.
The remote control lever will operate only
when the neutral throttle lever is in the closed
position.
EMU25924
Gear shift lever
Move the gear shift lever forward to engage
the forward gear or rearward to engage the
reverse gear.
1. Forward “ ”
2. Neutral “ ”
3. Reverse “ ”
EMU25942
Throttle grip
The throttle grip is on the tiller handle. Turn
the grip counterclockwise to increase speed
and clockwise to decrease speed.
EMU25913
Tiller handle
To change direction, move the tiller handle to
the left or right as necessary.
25
6BG-9-39-1E0.book 26 ページ 2013年4月29日 月曜日 午前9時41分
Components
or throttle grip, which could result in an
accident. [EWM00032]
EMU25962
Throttle indicator
The fuel consumption curve on the throttle
indicator shows the relative amount of fuel
consumed for each throttle position. Choose
the setting that offers the best performance
and fuel economy for the desired operation.
When constant speed is desired, tighten the
adjuster to maintain the desired throttle setting.
EMU25995
1. Throttle indicator
EMU25976
Throttle friction adjuster
A friction device provides adjustable resistance to movement of the throttle grip or the
remote control lever, and can be set according to operator preference.
To increase resistance, turn the adjuster
clockwise. To decrease resistance, turn the
adjuster counterclockwise. WARNING! Do
not overtighten the friction adjuster. If
there is too much resistance, it could be
difficult to move the remote control lever
26
Engine shut-off cord (lanyard) and
clip
The clip must be attached to the engine shutoff switch for the engine to run. The cord
should be attached to a secure place on the
operator’s clothing, or arm or leg. Should the
operator fall overboard or leave the helm, the
cord will pull out the clip, stopping ignition to
the engine. This will prevent the boat from
running away under power. WARNING! Attach the engine shut-off cord to a secure
place on your clothing, or your arm or leg
while operating. Do not attach the cord to
clothing that could tear loose. Do not
route the cord where it could become en-
6BG-9-39-1E0.book 27 ページ 2013年4月29日 月曜日 午前9時41分
Components
tangled, preventing it from functioning.
Avoid accidentally pulling the cord during normal operation. Loss of engine
power means the loss of most steering
control. Also, without engine power, the
boat could slow rapidly. This could cause
people and objects in the boat to be
thrown forward. [EWM00122]
EMU26091
Main switch
1. Cord
2. Clip
3. Engine shut-off switch
The main switch controls the ignition system;
its operation is described below.
“
” (off)
With the main switch in the “
” (off) position, the electrical circuits are off, and the key
can be removed.
 “ ” (on)
With the main switch in the “ ” (on) position, the electrical circuits are on, and the key
cannot be removed.
“
” (start)
With the main switch in the “
” (start) position, the starter motor turns to start the engine. When the key is released, it returns
automatically to the “ ” (on) position.
1. Cord
2. Clip
3. Engine shut-off switch
EMU26003
Engine stop button
The engine stop button stops the engine
when the button is pushed.
27
6BG-9-39-1E0.book 28 ページ 2013年4月29日 月曜日 午前9時41分
Components
EMU31432
1. Nut
Steering friction adjuster
A friction device provides adjustable resistance to the steering mechanism, and can be
set according to operator preference. An adjuster lever is located on the bottom of the
tiller handle bracket.
To increase resistance, turn the lever to the
port side “A”.
To decrease resistance, turn the lever to the
starboard side “B”.
EWM00040
WARNING
Do not overtighten the friction adjuster. If
there is too much resistance, it could be
difficult to steer, which could result in an
accident.
B
A
ZMU02810
If the resistance does not increase even
when the lever is turned to the port side “A”,
make sure that the nut is tightened to the
specified torque.
28
Nut tightening torque:
6 Nm (0.61 kgf-m, 4.4 ft-lb)
TIP:
Steering movement is blocked when the
adjuster lever is set to the “A” position.
 Check the tiller handle for smooth movement when the lever is turned to the starboard side “B”.
 Do not apply lubricants such as grease to
the friction areas of the steering friction adjuster.

EMU26143
Power trim and tilt switch on remote
control or tiller handle
The power trim and tilt system adjusts the
outboard motor angle in relation to the transom. Pressing the switch “ ” (up) trims the
outboard motor up, and then tilts it up. Pressing the switch “ ” (down) tilts the outboard
motor down and trims it down. When the
switch is released, the outboard motor will
stop in its current position.
For instructions on using the power trim and
tilt switch, see pages 63 and 65.
6BG-9-39-1E0.book 29 ページ 2013年4月29日 月曜日 午前9時41分
Components
operator, increasing the risk of collision
with another boat or an obstacle.
1
UP
DN
ZMU06394
1. Power trim and tilt switch
EMU30901
Variable trolling RPM switches
EMU26155
Power trim and tilt switch on bottom
cowling
The power trim and tilt switch is located on
the side of the bottom cowling. Pushing the
switch “ ” (up) trims the outboard motor up,
and then tilts it up. Pushing the switch “ ”
(down) tilts the outboard motor down and
trims it down. When the switch is released,
the outboard motor will stop in its current position.
For instructions on using the power trim and
tilt switch, see page 65.
The trolling speed can be adjusted when the
outboard motor is trolling. Press the “ ”
switch to increase the trolling speed and
press the “ ” switch to decrease the trolling
speed.
1. Variable trolling RPM switch
EWM01031
WARNING
Use the power trim and tilt switch located
on the bottom cowling only when the boat
is at a complete stop with the engine off.
Attempting to use this switch while the
boat is moving could increase the risk of
falling overboard and could distract the
TIP:
The trolling speed changes approximately
50 r/min each time a switch is pressed.
 If the trolling speed has been adjusted, the
engine returns to the normal trolling speed
when the engine is stopped and restarted
or when the engine speed exceeds ap
29
6BG-9-39-1E0.book 30 ページ 2013年4月29日 月曜日 午前9時41分
Components

proximately 3000 r/min.
For instructions on using the variable trolling RPM switches, see page 61.
Bolt tightening torque:
18 Nm (1.84 kgf-m, 13.3 ft-lb)
EMU26244
EMU26312
Trim tab with anode
Tilt lock mechanism
EWM00840
The tilt lock mechanism is used to prevent
the outboard motor from lifting out of the water when in reverse gear.
WARNING
An improperly adjusted trim tab could
cause difficult steering. Always test run
after the trim tab has been installed or replaced to be sure steering is correct. Be
sure you have tightened the bolt after adjusting the trim tab.
The trim tab should be adjusted so that the
steering control can be turned to either the
right or left by applying the same amount of
force.
If the boat tends to veer to the left (port side),
turn the trim tab rear end to the port side “A”
in the figure. If the boat tends to veer to the
right (starboard side), turn the trim tab end to
the starboard side “B” in the figure.
ECM00840
NOTICE
1
ZMU06395
1. Tilt lock lever
To lock it, set the tilt lock lever in the “ ”
(lock) position. To release, push the tilt lock
lever in the “ ” (release) position.
EMU26321
The trim tab also serves as an anode to
protect the engine from electrochemical
corrosion. Never paint the trim tab as it
will become ineffective as an anode.
Tilt support knob
To keep the outboard motor in the tilted up
position, push the tilt support knob under the
swivel bracket.
A
1
2
B
ZMU06396
ZMU03097
ECM00660
1. Trim tab
2. Bolt
30
NOTICE
Do not use the tilt support lever or knob
6BG-9-39-1E0.book 31 ページ 2013年4月29日 月曜日 午前9時41分
Components
when trailering the boat. The outboard
motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running position, use
an additional support device to secure it
in the tilt position.
EMU26373
Cowling lock lever(s) (turn type)
To remove the engine top cowling, turn the
cowling lock lever(s) and lift off the cowling.
When installing the cowling, check to be sure
it fits properly in the rubber seal. Then lock
the cowling again by returning the cowling
lock lever(s) to the lock position.
1
ZMU06398
1. Flushing device
TIP:
For details on usage, see page 75.
EMU33465
Fuel filter/Water separator
1
This engine has a combination fuel filter/water separator and associated alert system. If
water separated from the fuel exceeds a
specific volume, the alert device of Command Link Multifunction Tachometer will activate.
ZMU04041
1. Cowling lock lever(s)
EMU26463
Flushing device
This device is used to clean the cooling water passages of the motor using a garden
hose and tap water.
ZMU06399
Activation of alert device
 The water separator-alert indicator of
Command Link Multifunction Tachometer
will blink.
 The buzzer will sound intermittently only
when the gear shift is in neutral.
 If the alert system has activated, stop the
engine and consult a Yamaha dealer im-
31
6BG-9-39-1E0.book 32 ページ 2013年4月29日 月曜日 午前9時41分
Components
mediately.
TIP:
Adding an in-line 10-micron fuel filter has
been show to greatly reduce the chance of
fuel contamination problems. Consult your
dealer for information about Yamaha 10-micron fuel filters if your boat does not have
one.
EMU26304
Alert indicator
If the engine develops a condition which is
cause for alert, the indicator lights up. For
details on how to read the alert indicator, see
page 44.
1. Alert indicator
32
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Instruments and indicators
EMU36015
Indicators
EMU36024
Low oil pressure-alert indicator
If oil pressure drops too low, this indicator will
light up. For further information, see page 44.
ECM00022
NOTICE
Do not continue to run the engine if the
low oil pressure-alert indicator is on
and the engine oil level is lower. Serious engine damage will occur.
 The low oil pressure-alert indicator
does not indicate the engine oil level.
Use the oil dipstick to check the remaining oil quantity. For further information, see page 50.

1. Overheat-alert indicator
EMU26493
Digital tachometer
The tachometer shows the engine speed
and has the following functions.
All segments of the display will light momentarily after the main switch is turned on and
will return to normal thereafter.
1
2
3
5
1. Low oil pressure-alert indicator
EMU36033
Overheat-alert indicator
If the engine temperature rises too high, this
indicator will light up. For further information
on reading the indicator, see page 44.
ECM00052
NOTICE
Do not continue to run the engine if the
overheat-alert indicator is on. Serious engine damage will occur.
6
4
7
ZMU03601
1. Tachometer
2. Trim meter
3. Hour meter
4. Low oil pressure-alert indicator
5. Overheat-alert indicator
6. Set button
7. Mode button
TIP:
The water separator and engine trouble-alert
indicators only operate when the engine is
equipped with the appropriate functions.
33
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Instruments and indicators
EMU36050
Tachometer
The tachometer displays engine speed in
hundreds of revolutions per minute (r/min).
For example, if the tachometer display reads
“22” then the engine speed is 2200 r/min.
EMU26621
Trim meter
This meter shows the trim angle of your outboard motor.
 Memorize the trim angles that work best
for your boat under different conditions.
Adjust the trim angle to the desired using
the power trim and tilt switch.
 If the trim angle of your motor exceeds the
trim operating range, the top segment on
the trim meter display will blink.
ZMU01741
To change the display format, press the
“
” (mode) button. The display can show
total hours or trip hours, or turn off.
To reset the trip hours, simultaneously press
the “ ” (set) and “
” (mode) buttons for
more than 1 second while the trip hours are
displayed. This resets the trip counter to 0
(zero).
The total number of hours the engine has
been run cannot be reset.
EMU26524
Low oil pressure-alert indicator
If oil pressure drops too low, the alert indicator will start to blink. For further information,
see page 44.
ECM00022
ZMU01740
EMU26651
Hour meter
This meter shows the number of hours the
engine has been run. It can be set to show
the total number of hours or the number of
hours for the current trip. The display can
also be turned on and off.
34
NOTICE
Do not continue to run the engine if the
low oil pressure-alert indicator is on
and the engine oil level is lower. Serious engine damage will occur.
 The low oil pressure-alert indicator
does not indicate the engine oil level.
Use the oil dipstick to check the remaining oil quantity. For further information, see page 50.

6BG-9-39-1E0.book 35 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
1
ZMU01736
1. Low oil pressure-alert indicator
EMU26583
Overheat-alert indicator
1. Speedometer
2. Fuel gauge
3. Trip meter/clock/voltmeter
4. Alert indicator(s)
If the engine temperature rises too high, the
alert indicator will start to blink. For further information on reading the indicator, see page
44.
All segments of the display will light momentarily after the main switch is turned on and
will return to normal thereafter.
ECM00052
EMU36061
Speedometer
NOTICE
Do not continue to run the engine if the
overheat-alert indicator is on. Serious engine damage will occur.
The speedometer displays km/h, mph, or
knots, according to operator preference. Select the desired units of measurement by setting the selector switch on the back of the
gauge. See the illustration for settings.
1
ZMU01737
1. Overheat-alert indicator
EMU26602
Digital speedometer
This gauge shows the boat speed and other
information.
1. Cap
2. Selector switch (for speed unit)
3. Selector switch (for fuel sensor)
EMU26713
Fuel gauge
Eight segments indicate the fuel level. When
35
6BG-9-39-1E0.book 36 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
all segments are showing, the fuel tank is
full.
tery power. The stored data will be lost if the
battery is disconnected.
ZMU01745
The fuel level reading can be inaccurate due
to the position of the sensor in the fuel tank
and the attitude of the boat in the water. Operation with bow-up trim or continuous turning can give false readings.
Do not adjust the selector switch for fuel sensor. Incorrectly setting the selector switch on
the gauge will give false readings. Consult
your Yamaha dealer on how to correctly set
the selector switch. NOTICE: Running out
of fuel can damage the engine. [ECM01770]
EMU36071
Trip meter / Clock / Voltmeter
The display shows either the trip meter, the
clock, or the voltmeter.
To change the display, press the “
”
(mode) button repeatedly until the indicator
on the face of the gauge points to “
” (trip
meter), “
” (clock), or “
” (voltmeter).
EMU26701
Clock
To set the clock:
1. Be sure the gauge is in the “
” (time)
mode.
2. Press the “ ” (set) button; the hour display will begin blinking.
3. Press the “
” (mode) button until the
desired hour is displayed.
4. Press the “ ” (set) button again, the
minute display will begin blinking.
5. Press the “
” (mode) button until the
desired minute is displayed.
6. Press the “ ” (set) button again to start
the clock.
EMU26691
Trip meter
This gauge displays the distance the boat
has traveled since the gauge was last reset.
The trip distance is shown in kilometers or
miles depending upon the unit of measurement selected for the speedometer.
To reset the trip meter to zero, press the “ ”
(set) and “
” (mode) buttons at the same
time.
The trip distance is kept in memory by bat-
36
The clock operates on battery power. Disconnecting the battery will stop the clock.
Reset the clock after connecting the battery.
6BG-9-39-1E0.book 37 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
EMU36080
Voltmeter
The voltmeter displays the charge of the battery in volts(V).
EMU26721
Fuel level-alert indicator
If the fuel level decreases to one segment,
the fuel level alert segment will blink.
Do not continue to operate the engine with
full throttle if an alert device has activated.
Get back to the port within trolling engine
speed. NOTICE: Running out of fuel can
damage the engine. [ECM01770]
1. Low battery indicator
EMU40792
Command Link Multifunction
Meters
1. Fuel level-alert segment
EMU26732
Low battery voltage-alert indicator
If battery voltage drops, the display will automatically turn on and blink.
Get back to the port soon if an alert device
has activated. For charging the battery, consult your Yamaha dealer.
There are 6 types of Command Link meters:
tachometer unit (square and round types),
speedometer unit (square type), speed &
fuel meter unit (square and round types), and
fuel management meter (square type). The
indicator system is slightly different between
the round and square types. Check the model and type of your unit carefully. This manual describes mainly the alert indicators. For
more details on setting meters or changing
indicator systems, see the operation manual
for the meters.
EMU41164
Command Link Multifunction
Tachometer
The tachometer shows the engine speed
and has functions of trim meter, adjusting
trolling speed, cooling water/engine temperature display, battery voltage display, total
hour/trip hour display, oil pressure display,
water detection alert, engine trouble alert,
and periodic maintenance notification. If the
cooling water pressure sensor is installed,
the unit can also show the cooling water
pressure display. However, even if the cooling water pressure sensor is not installed,
37
6BG-9-39-1E0.book 38 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
the cooling water pressure display can be
shown by connecting an optional sensor to
the unit. For the optional sensor, consult your
Yamaha dealer. The tachometer unit is available in round and square types. Check your
tachometer unit type.
1
2
ZMU05417
1. Set button
2. Mode button
2
1
1
4 5 2
ZMU05415
1. Set button
2. Mode button
3
1
5
4
2
7
3
6
8
1. Tachometer
2. Trim meter
3. Multifunction display
4. Cooling water pressure
5. Cooling water/engine temperature
6. Water detection-alert indicator
7. Battery voltage
8. Oil pressure (4-stroke models)
38
ZMU05416
6
7
8 9
ZMU05418
1. Tachometer
2. Trim meter
3. Multifunction display
4. Water detection-alert indicator
5. Engine trouble alert/maintenance indicator
6. Cooling water pressure
7. Oil pressure (4-stroke models)
8. Cooling water/engine temperature
9. Battery voltage
EMU36190
Start-up checks
Place the remote control lever / gear shift lever in neutral and turn the main switch to
“ ” (on). After all the displays come on and
the total hour display comes on, the gauge
will change to normal operation. If the buzzer
sounds and the water separator-alert indicator blinks, consult your Yamaha dealer im-
6BG-9-39-1E0.book 39 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
mediately.
TIP:
To stop the buzzer, press the “
“
” (mode) button.
” (set) or
EMU37690
Adjusting trolling speed
You can adjust the trolling speed randomly
by increasing or decreasing it approximately
50 r/min. When in the trolling speed setting
mode, the display switches to the normal display when the engine speed is increased
(within 3000 r/min) using the throttle. When
the throttle is closed, the display returns to
the trolling speed setting mode. For details,
see the attached operation manual.
the normal display. The default engine idle
speed is also reset automatically when the
engine is turned off or when the engine
speed exceeds 3000 r/min.
 When warming up a cold engine, the trolling speed cannot be decreased below the
specified engine idle speed.
EMU36210
Low oil pressure-alert
If the engine oil pressure drops too low, the
low oil pressure-alert indicator will start to
blink, and the engine speed will automatically decrease to about 3000 r/min.
ZMU05430
ZMU05931
ZMU05431
ZMU06309
TIP:
Trolling is affected by currents and other
operating conditions and may differ from
the actual engine speed.
 The default engine idle speed is reset automatically when the display is switched to

Stop the engine immediately if the buzzer
sounds and the low oil pressure-alert indicator blinks. Check the engine oil quantity and
replenish oil if necessary. If the alert device
has activated while the appropriate engine
oil quantity is maintained, consult your
Yamaha dealer.
39
6BG-9-39-1E0.book 40 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
ECM01601
NOTICE
Do not continue to run the engine if the
low oil pressure alert device has activated. Serious engine damage will occur.
EMU36140
Overheat alert
If the engine temperature rises too high while
cruising, the overheat-alert indicator will start
to blink. The engine speed will automatically
decrease to about 3000 r/min.
a alert device has activated. Consult
your Yamaha dealer if the problem cannot be located and corrected.
EMU36150
Water separator alert
This indicator will blink if water has accumulated in the water separator (fuel filter) while
cruising. In such an event, stop the engine
immediately and see page 95 of this manual
to drain the water from the fuel filter. Get
back to the port soon and consult a Yamaha
dealer immediately.
ZMU05421
ZMU05423
ZMU05422
Stop the engine immediately if the buzzer
sounds and the overheat alert device has activated. Check the cooling water inlet for
clogging.
ECM01592
NOTICE
Do not continue to run the engine if the
overheat-alert indicator blinks. Serious
engine damage will occur.
 Do not continue to operate the engine if

40
ZMU05424
ECM00910
NOTICE
Gasoline mixed with water could cause
damage to the engine.
EMU36160
Engine trouble alert
This indicator will blink if the engine malfunctions while cruising. Get back to the port
soon and consult a Yamaha dealer immedi-
6BG-9-39-1E0.book 41 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
ately.
ZMU05427
ZMU05425
ZMU05428
ZMU05426
ECM00920
NOTICE
In such an event, the engine will not operate properly. Consult a Yamaha dealer immediately.
EMU36170
Low battery voltage-alert
If the battery voltage drops, the low battery
voltage-alert indicator and the battery voltage value will start to blink. Get back to the
port soon if the low battery voltage-alert device has activated. For charging the battery,
consult your Yamaha dealer.
EMU41033
Command Link Multifunction
Speed & Fuel Meter
The speed & fuel meter unit shows the boat
speed and has the functions of fuel meter, total fuel consumption display, fuel economy
display, fuel flow display, and system voltage
display. The chosen display is selected using
the “ ” (set) and “
” (mode) buttons as
described in this section. If the speed sensor
is installed, the unit can also show the trip
display. However, even if the speed sensor
is not installed, the trip display can be shown
by connecting an optional sensor to the unit.
In addition, if optional sensors are connected
to the unit, water surface temperature display, depth display, and clock will also be
available. For the optional sensors, consult
your Yamaha dealer.
The speed & fuel meter unit is available in
round and square types. Check your speed
41
6BG-9-39-1E0.book 42 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
& fuel meter unit type.
After the main switch is first turned to the
“ ” (on) position, all of the displays come on
as a test. After a few seconds, the unit will
change to normal operation.
For more information, see the operation
manual for the meters.
1
2
ZMU05434
1. Set button
2. Mode button
1
2
1
2
ZMU05432
1. Set button
2. Mode button
1
3
ZMU05435
1. Speedometer
2. Fuel meter
3. Multifunction display
3
2
ZMU05433
1. Speedometer
2. Fuel meter
3. Multifunction display
42
EMU41042
Command Link Multifunction
Speedometer
The speedometer unit shows the boat speed
and has functions of fuel meter and system
voltage display. The chosen display is selected using the “ ” (set) and “
”
(mode) buttons as described in this section.
In addition, the speedometer can show the
desired unit of measurement such as km/h,
mph, or knots. If the speed sensor is installed, the unit can also show the trip display. However, even if the speed sensor is
not installed, the trip display can be shown
6BG-9-39-1E0.book 43 ページ 2013年4月29日 月曜日 午前9時41分
Instruments and indicators
by connecting an optional sensor to the unit.
In addition, if optional sensors are connected
to the unit, water surface temperature display, depth display, and clock will also be
available. For the optional sensors, consult
your Yamaha dealer.
After the main switch is first turned to the
“ ” (on) position, all of the displays come on
as a test. After a few seconds, the unit will
change to normal operation.
For more information, see the operation
manual for the meters.
1
EMU41022
Command Link Multifunction
Fuel Management Meter
The fuel management meter has the functions of fuel flow meter, total consumption
display, fuel economy display, and remaining
fuel display. The chosen display is selected
using the “ ” (set) and “
” (mode) buttons as described in this section.
After the main switch is first turned to the
“ ” (on) position, all of the displays come on
as a test. After a few seconds, the unit will
change to normal operation.
For more information, see the operation
manual for the meters.
2
ZMU05436
2
1
1. Set button
2. Mode button
ZMU05438
1. Set button
2. Mode button
1
1
3
2
ZMU05437
2
1. Speedometer
2. Fuel meter
3. Multifunction display
ZMU05439
1. Fuel flow meter
2. Multifunction display
43
6BG-9-39-1E0.book 44 ページ 2013年4月29日 月曜日 午前9時41分
Engine control system
EMU26803
Alert system
ECM00091
NOTICE
Do not continue to operate the engine if a
alert device has activated. Consult your
Yamaha dealer if the problem cannot be
located and corrected.
EMU26838
ZMU03025
Overheat alert
This engine has an overheat-alert device. If
the engine temperature ris
es too high, the alert device will activate.
 The engine speed will automatically decrease to about 3000 r/min.
 The overheat-alert indicator will light or
blink (if equipped).
If the alert system has activated, stop the engine and check the cooling water inlets:
 Check trim angle to be sure that the cooling water inlet is submerged.
 Check the cooling water inlet for clogging.
ZMU04227
ZMU02630
EMU26865
Low oil pressure alert

The buzzer will sound.
44
If the oil pressure drops too low, the alert device will activate.
 The engine speed will automatically decrease to about 3000 r/min. The low oil
6BG-9-39-1E0.book 45 ページ 2013年4月29日 月曜日 午前9時41分
Engine control system
pressure-alert indicator will light or blink.
ZMU04254

If the alert system has activated, stop the engine as soon as it is safe to do so. Check the
oil level and add oil as needed. If the oil level
is correct, consult your Yamaha dealer.
The buzzer will sound.
45
6BG-9-39-1E0.book 46 ページ 2013年4月29日 月曜日 午前9時41分
Installation
EMU26902
Installation
The information presented in this section is
intended as reference only. It is not possible
to provide complete instructions for every
possible boat and motor combination. Proper
mounting depends in part on experience and
the specific boat and motor combination.
EWM01590
1
WARNING
Overpowering a boat could cause severe instability. Do not install an outboard motor with more horsepower
than the maximum rating on the capacity plate of the boat. If the boat does not
have a capacity plate, consult the boat
manufacturer.
 Improper mounting of the outboard motor could result in hazardous conditions such as poor handling, loss of
control, or fire hazards. For permanently mounted models, your dealer or other person experienced in proper rigging
should mount the motor.

EMU33470
Mounting the outboard motor
The outboard motor should be mounted so
that the boat is well balanced. Otherwise, the
boat could be hard to steer. For single-engine boats, mount the outboard motor on the
centerline (keel line) of the boat.
46
ZMU01760
1. Center line (keel line)
EMU26934
Mounting height (boat bottom)
The mounting height of your outboard motor
affects its efficiency and reliability. If it is
mounted too high, propeller ventilation may
occur, which will reduce propulsion due to
excessive propeller slip, and the water intakes for the cooling system may not get adequate water supply, which can cause
engine overheating. If the engine is mounted
too low, water resistance (drag) will increase,
thereby reducing engine efficiency and performance.
Most commonly, outboard motor should be
mounted so that the anti-cavitation plate is in
alignment with the bottom of the boat. The
optimum mounting height of the outboard
motor is affected by the boat/motor combination and the desired use. Test runs at different heights can help determine the optimum
mounting height. Consult your Yamaha dealer or boat manufacturer for further information on determining the proper mounting
height.
6BG-9-39-1E0.book 47 ページ 2013年4月29日 月曜日 午前9時41分
Installation
ZMU01762
ECM01634
NOTICE
Make sure that the idle hole is high
enough to prevent water from entering
the engine even if the boat is stationary
with the maximum load.
 Incorrect engine height or obstructions
to the smooth flow of water (such as the
design or condition of the boat, or accessories, such as transom ladders or
depth finder transducers) can create
airborne water spray while the boat is
cruising. If the outboard motor is operated continuously in the presence of
airborne water spray, enough water
could enter the engine through the air
intake opening in the top cowling to
cause severe engine damage. Remove
the cause of the airborne water spray.

47
6BG-9-39-1E0.book 48 ページ 2013年4月29日 月曜日 午前9時41分
Operation
EMU36381
First-time operation
EMU36391
Fill engine oil
The engine is shipped from the factory without engine oil. If your dealer did not fill the oil,
you must fill it before starting the engine.
NOTICE: Check that the engine is filled
with oil before first-time operation to
avoid severe engine damage. [ECM01781]
The engine is shipped with the following
sticker, which should be removed after engine oil is filled for the first time. For more information on checking the engine oil level,
see page 50.
For 10 hours for breaking in engine avoid extended idling, rough water and crowded areas.
1. For the first hour of operation:
Run the engine at varying speeds up to
2000 r/min or approximately half throttle.
2. For the second hour of operation:
Increase engine speed as much as necessary to put the boat on plane (but
avoid full-throttle operation), then back
off on the throttle while keeping the boat
at a planing speed.
3. Remaining 8 hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
4. After the first 10 hours:
Operate the engine normally.
EMU36400
Getting to know your boat
Different boats handle differently. Operate
cautiously while you learn how your boat
handles under different conditions and with
different trim angles (see page 63).
ZMU01710
EMU30174
EMU36413
Checks before starting engine
Breaking in engine
EWM01921
Your new engine requires a period of breakin to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help ensure proper performance and longer engine
life. NOTICE: Failure to follow the break-in
procedure could result in reduced engine
life or even severe engine damage. [ECM00801]
If any item in “Checks before starting engine” is not working properly, have it inspected and repaired before operating
the outboard motor. Otherwise, an accident could occur.
EMU27085
WARNING
ECM00120
NOTICE
Procedure for 4-stroke models
Your new engine requires a period of 10
hours break-in to allow mating surfaces of
moving parts to wear in evenly.
Do not start the engine out of water. Overheating and serious engine damage can
occur.
TIP:
EMU36421
Run the engine in the water, under load (in
gear with a propeller installed) as follows.
Be sure you have plenty of fuel for your trip.
48
Fuel level
6BG-9-39-1E0.book 49 ページ 2013年4月29日 月曜日 午前9時41分
Operation
A good rule is to use 1/3 of your fuel to get to
the destination, 1/3 to return, and to keep 1/3
as an emergency reserve. With the boat level on a trailer or in the water, turn the key to
“ ” (on) and check the fuel level. For fuel
filling instructions, see page 52.
EMU36572
Remove the top cowling
For the following checks, remove the top
cowling from the bottom cowling. To remove
the top cowling, release the cowling lock lever and lift off the top cowling.
EMU36451
Check for fuel leaks
 Check for fuel leaks or gasoline fumes in
the boat.
 Check for fuel leakage from the fuel system.
 Check the fuel tank and fuel lines for
cracks, swellings, or other damages.
EMU36471
Check the fuel filter
Check that the fuel filter is clean and free of
water. If enough water to raise the float ring
is found in the fuel, or if a significant amount
of debris is found, the fuel tank should be
checked and cleaned by a Yamaha dealer.
ZMU06085
EMU36442
ZMU06399
Fuel system
EWM00060
WARNING
Gasoline and its vapors are highly flammable and explosive. Keep away from
sparks, cigarettes, flames, or other sources of ignition.
EWM00910
WARNING
Leaking fuel can result in fire or explosion.
 Check for fuel leakage regularly.
 If any fuel leakage is found, the fuel
system must be repaired by a qualified
mechanic. Improper repairs can make
the outboard unsafe to operate.
EMU36902
Controls
Tiller handle models:
 Move the tiller handle fully to the left and
right to make sure operation is smooth.
 Turn the throttle grip from the fully closed
to the fully open position. Make sure that it
turns smoothly and that it completely returns to the fully closed position.
 Look for loose or damaged connections of
the throttle and shift cables.
Remote control models:
 Turn the steering wheel full-right and fullleft. Make sure operation is smooth and
unrestricted throughout the whole range
with no binding or excessive free play.
 Operate the throttle levers several times to
49
6BG-9-39-1E0.book 50 ページ 2013年4月29日 月曜日 午前9時41分
Operation
make sure there is no hesitation in their
travel. Operation should be smooth over
the complete range of motion, and each lever should return completely to the idle position.
 Look for loose or damaged connections of
the throttle and shift cables.
2.
position (not tilted). NOTICE: If the outboard motor is not level, the oil level
indicated on the oil dipstick may not
be accurate. [ECM01861]
Remove the oil dipstick and wipe it
clean.
EMU36483
Engine shut-off cord (lanyard)
Inspect the engine shut-off cord and clip for
damage, such as cuts, breaks, and wear.
1
ZMU06400
1. Oil dipstick
3.
4.
1. Cord
2. Clip
3. Engine shut-off switch
Insert the oil dipstick completely and remove it again.
Check that the oil level on the oil dipstick
is between the upper and lower marks.
Consult your Yamaha dealer if the oil
level is not at the proper level or if it appears milky or dirty.
1
3
2
ZMU05091
1. Cord
2. Clip
3. Engine shut-off switch
EMU40993
Engine oil
1.
50
Place the outboard motor in a vertical
1. Lower mark
2. Oil dipstick
3. Upper mark
6BG-9-39-1E0.book 51 ページ 2013年4月29日 月曜日 午前9時41分
Operation
top cowling is not installed correctly,
water spray under the top cowling
can damage the engine, or the top
cowling can blow off at high speeds.
EMU27153
Engine
Check the engine and engine mounting.
Look for loose or damaged fasteners.
 Check the propeller for damage.
 Check for engine oil leaks.


[ECM01991]
EMU36493
Flushing device
Check that the flushing device’s garden hose
connector is securely screwed on to the fitting on the bottom cowling. NOTICE: If the
garden hose connector is not properly
connected, cooling water can leak out
and the engine can overheat during operation. [ECM01801]
ZMU06110
After installing, check the fitting of the top
cowling by pushing it with both hands. If the
top cowling is loose, have it repaired by your
Yamaha dealer.
1
2
ZMU06401
1. Fitting
2. Flushing device
EMU36955
Install top cowling
1.
2.
3.
4.
5.
Be sure that the cowling lock lever is released.
Be sure that the rubber seal is seated all
the way around the top cowling.
Place the top cowling on the bottom
cowling.
Check to be sure the rubber seal is seated correctly between the top cowling
and the bottom cowling.
Move the cowling lock lever to lock the
top cowling as shown. NOTICE: If the
EMU38910
Checking power trim and tilt system
EWM01970
WARNING
Never get under the lower unit while it
is tilted, even when the tilt support
knob is locked. Severe injury could occur if the outboard motor accidentally
falls.
 Body parts can be crushed between the
motor and the clamp bracket when the
motor is trimmed or tilted.

51
6BG-9-39-1E0.book 52 ページ 2013年4月29日 月曜日 午前9時41分
Operation

Be sure no one is near the outboard
motor before performing this check.
1.
Check the power trim and tilt unit for any
sign of oil leaks.
Operate each of the power trim and tilt
switches to check that all switches work.
Tilt the outboard motor up and check
that the trim and tilt rod is pushed out
completely.
2.
3.
1
mable and explosive. Always refuel according to this procedure to reduce the
risk of fire and explosion.
 Gasoline is poisonous and can cause
injury or death. Handle gasoline with
care. Never siphon gasoline by mouth.
If you should swallow some gasoline or
inhale a lot of gasoline vapor, or get
some gasoline in your eyes, see your
doctor immediately. If gasoline spills
on your skin, wash with soap and water. If gasoline spills on your clothing,
change your clothes.
Before refueling, check the following points:
Ensure the engine is stopped.
 Securely moor the boat in a well-ventilated
area and stop the engine. If the boat is
trailered, ensure it is stable.
 Do not smoke and keep away from sparks,
flames, static electric discharges, or other
sources of ignition.
 If you use a portable container to store and
dispense fuel, use only a locally approved
GASOLINE container.
 To prevent electrostatic sparks, discharge
any built-up static electricity from your
body before refueling.
1. Disconnect the fuel hose from the fuel
joint on the fuel tank.

ZMU06402
1. Trim and tilt rod
4.
Check that the trim and tilt rod is free of
corrosion or other flaws.
Tilt the outboard motor down. Check that
the trim and tilt rod operates smoothly.
5.
EMU36582
Battery
Check that the battery is in good condition,
and fully charged. Check that the battery
connections are clean, secure and covered
by insulating covers. The electrical contacts
of the battery and cables must be clean and
properly connected or the battery will not
start the engine.
Refer to the battery manufacturer’s instructions for checks for your particular battery.
EMU43163
2
Filling fuel
EWM01830
WARNING

Gasoline and its vapors are highly flam-
52
1
ZMU07443
1. Fuel joint
6BG-9-39-1E0.book 53 ページ 2013年4月29日 月曜日 午前9時41分
Operation
2. Fuel hose
2.
Turn the air vent screw clockwise to
close it.
2
1
1
ZMU07446
1. Pressure relief tab
2. Fuel tank cap
ZMU07444
1. Air vent screw
3.
4.
Remove the fuel tank from the boat.
To loosen the air vent screw, turn it
counterclockwise until it stops.
TIP:
Release the fuel vapor contained in the fuel
tank.
6. While pressing and holding the pressure
relief tab under the fuel tank cap again,
turn the fuel tank cap counterclockwise
to remove it.
2
1
ZMU07445
1
1. Air vent screw
5.
While pressing and holding the pressure
relief tab under the fuel tank cap, slowly
turn the fuel tank cap counterclockwise
1/4 turn.
ZMU07447
1. Pressure relief tab
2. Fuel tank cap
7.
Fill the fuel tank with fuel. WARNING!
Do not overfill. Otherwise fuel can expand and overflow if the temperature
increases. [EWM02610]
Fuel tank capacity:
25 L (6.60 US gal, 5.50 Imp.gal)
53
6BG-9-39-1E0.book 54 ページ 2013年4月29日 月曜日 午前9時41分
Operation
1
ZMU07444
ZMU07448
TIP:
1. Air vent screw
Wipe up any spilled gasoline immediately
with dry rags.
 Dispose of rags properly according to local
laws or regulations.
8. Turn the fuel tank cap clockwise to tighten until a click is heard.

1
ZMU07449
1. Fuel tank cap
9.
Turn the air vent screw clockwise to
close it.
EMU27452
Operating engine
EWM00420
WARNING
Before starting the engine, make sure
that the boat is tightly moored and that
you can steer clear of any obstructions.
Be sure there are no swimmers in the
water near you.
 When the air vent screw is loosened,
gasoline vapor will be released. Gasoline is highly flammable, and its vapors
are flammable and explosive. Refrain
from smoking, and keep away from
open flames and sparks while loosening the air vent screw.
 This product emits exhaust gases
which contain carbon monoxide, a colorless, odorless gas which could cause
brain damage or death when inhaled.
Symptoms include nausea, dizziness,
and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking
exhaust outlets.

EMU43173
Sending fuel (portable tank)
1.
54
To loosen the air vent screw, turn it
counterclockwise until it stops.
6BG-9-39-1E0.book 55 ページ 2013年4月29日 月曜日 午前9時41分
Operation
1
2
1
ZMU07445
1. Air vent screw
2.
Check the direction of the fuel hose.
Make sure that the arrow of the primer
pump points toward the outboard motor.
ZMU07584
1. Fuel joint
2. Fuel hose
4.
2
1
3
Firmly connect the other end of the fuel
hose to the joint on the fuel tank.
2
1
4
ZMU07455
ZMU07452
1. Toward the outboard motor
2. Arrow
3. Primer pump
4. Toward the fuel tank
3.
Align the fuel joint on the fuel hose with
the fuel joint on the outboard motor and
firmly connect the fuel hose to the joint
while pinching the joint.
1. Fuel joint
2. Fuel hose
5.
Wipe up any spilled gasoline immediately with dry rags.
TIP:
Dispose of rags properly according to local
laws or regulations.
6. Squeeze the primer pump, with the arrow pointing up, until you feel it become
firm. During engine operation, place the
tank horizontally, otherwise fuel cannot
be drawn from the fuel tank.
55
6BG-9-39-1E0.book 56 ページ 2013年4月29日 月曜日 午前9時41分
Operation

1.
Avoid accidentally pulling the cord during normal operation. Loss of engine
power means the loss of most steering
control. Also, without engine power,
the boat could slow rapidly. This could
cause people and objects in the boat to
be thrown forward.
Place the gear shift lever in neutral.
1. Arrow
2. Primer pump
TIP:
When using the fuel tank on the boat, a
fuel valve may also be equipped on the
boat. Open the fuel valve.
 Check the boat’s manual for the position of
the fuel valve.

EMU27494
Starting engine
EWM01600
WARNING
Before starting the engine, make sure
that the boat is tightly moored and that
you can steer clear of any obstructions.
Be sure there are no swimmers in the water near you.
TIP:
The start-in-gear protection device prevents
the engine from starting except when in neutral.
2. Attach the engine shut-off cord to a secure place on your clothing, or your arm
or leg. Then install the clip on the other
end of the cord into the engine shut-off
switch.
EMU27595
Electric start / prime start models
EWM01840
WARNING

Failure to attached engine shut-off cord
could result in a runaway boat if operator is ejected. Attach the engine shutoff cord to a secure place on your clothing, or your arm or leg while operating.
Do not attach the cord to clothing that
could tear loose. Do not route the cord
where it could become entangled, preventing it from functioning.
56
3.
Place the throttle grip in the “
”
(start) position. After the engine starts,
return the throttle to the fully closed po-
6BG-9-39-1E0.book 57 ページ 2013年4月29日 月曜日 午前9時41分
Operation
sition.
warmed up. For further information, see
page 59.
 If the engine is warm and fails to start,
open the throttle slightly and try to start the
engine again. If the engine still fails to
start, see page 92.
EMU27664
Electric start and remote control models
EWM01840
WARNING
Failure to attached engine shut-off cord
could result in a runaway boat if operator is ejected. Attach the engine shutoff cord to a secure place on your clothing, or your arm or leg while operating.
Do not attach the cord to clothing that
could tear loose. Do not route the cord
where it could become entangled, preventing it from functioning.
 Avoid accidentally pulling the cord during normal operation. Loss of engine
power means the loss of most steering
control. Also, without engine power,
the boat could slow rapidly. This could
cause people and objects in the boat to
be thrown forward.

4.
Turn the main switch to “
” (start),
and hold it for a maximum of 5 seconds.
5.
Immediately after the engine starts, release the main switch and allow it to return to “ ” (on). NOTICE: Never turn
the main switch to “
” (start)
while the engine is running. Do not
keep the starter motor turning for
more than 5 seconds. If the starter
motor is turned continuously for
more than 5 seconds, the battery will
be quickly discharged, thus making it
impossible to start the engine. The
starter can also be damaged. If the
engine will not start after 5 seconds
of cranking, return the main switch to
“ ” (on), wait 10 seconds, then
crank the engine again. [ECM00192]
TIP:

When the engine is cold, it needs to be
1.
Place the remote control lever in neutral.
TIP:
The start-in-gear protection device prevents
the engine from starting except when in neutral.
57
6BG-9-39-1E0.book 58 ページ 2013年4月29日 月曜日 午前9時41分
Operation
2.
Attach the engine shut-off cord to a secure place on your clothing, or your arm
or leg. Then install the clip on the other
end of the cord into the engine shut-off
switch.
of cranking, return the main switch to
“ ” (on), wait 10 seconds, then
crank the engine again. [ECM00192]
TIP:
When the engine is cold, it needs to be
warmed up. For further information, see
page 59.
 If the engine is warm and fails to start,
open the throttle slightly and try to start the
engine again. If the engine still fails to
start, see page 92.

EMU36510
Checks after starting engine
EMU36523
Cooling water
3.
4.
Turn the main switch to “ ” (on).
Turn the main switch to “
” (start),
and hold it for a maximum of 5 seconds.
Check for a steady flow of water from the
cooling water pilot hole. A continuous flow of
water from the pilot hole indicates that the
water pump is pumping water through the
cooling water passages. If the cooling water
passages are frozen, it may take a while for
water to start flowing out of the pilot hole.
ECM01810
NOTICE
5.
58
Immediately after the engine starts, release the main switch and allow it to return to “ ” (on). NOTICE: Never turn
the main switch to “
” (start)
while the engine is running. Do not
keep the starter motor turning for
more than 5 seconds. If the starter
motor is turned continuously for
more than 5 seconds, the battery will
be quickly discharged, thus making it
impossible to start the engine. The
starter can also be damaged. If the
engine will not start after 5 seconds
If water is not flowing out of the pilot hole
at all times while the engine is running,
overheating and serious damage could
occur. Stop the engine and check whether the cooling water inlet on the lower
case or the cooling water pilot hole is
blocked. Consult your Yamaha dealer if
the problem cannot be located and corrected.
6BG-9-39-1E0.book 59 ページ 2013年4月29日 月曜日 午前9時41分
Operation
gine stops.
Confirm that removing the clip from the engine shut-off switch stops the engine.
 Confirm that the engine cannot be started
with the clip removed from the engine
shut-off switch.

EMU34530
Shifting
EWM00180
WARNING
EMU27670
Warming up engine
EMU27716
Manual start and electric start
models
1.
2.
After starting the engine, allow it to idle
for 3 minutes to warm up. Failure to do
so will shorten engine life.
Be sure the low oil pressure-alert indicator goes off after starting the engine.
NOTICE: If the low oil pressure-alert
indicator blinks after the engine
starts, stop the engine. Otherwise,
serious engine damage could occur.
Check the oil level and add engine oil
if necessary. Consult your Yamaha
dealer if the cause for the low oil
pressure alert cannot be found.
Before shifting, make sure there are no
swimmers or obstacles in the water near
you.
ECM01610
NOTICE
Warm up the engine before shifting into
gear. Until the engine is warm, the idle
speed may be higher than normal. High
idle speed can prevent you from shifting
back to neutral. If this occurs, stop the
engine, shift to neutral, then restart the
engine and allow it to warm up.
To shift out of neutral
1. Pull the neutral interlock trigger up (if
equipped).
[ECM01831]
EMU36531
Checks after engine warm up
EMU36541
Shifting
While the boat is tightly moored, and without
applying throttle, confirm that the engine
shifts smoothly into forward and reverse, and
back to neutral.
1. Neutral interlock trigger
EMU36980
Stop switches

Turn the main switch to “
”, or press the
engine stop button and make sure the en-
2.
Move the remote control lever / gear
shift lever firmly and crisply forward (for
forward gear) or backward (for reverse
59
6BG-9-39-1E0.book 60 ページ 2013年4月29日 月曜日 午前9時41分
Operation
gear) [about 35 (a detent can felt) for remote control models]. Be sure to check
that the tilt lock lever is in the lock/down
position (if equipped) before operating in
reverse.
ZMU06404
2.
To shift from in gear (forward/reverse) to
neutral
1. Close the throttle so that the engine
slows to idle speed.
60
After the engine is at idle speed in gear
move the remote control lever / gear
shift lever firmly and crisply into the neutral position.
6BG-9-39-1E0.book 61 ページ 2013年4月29日 月曜日 午前9時41分
Operation
EMU31742
Stopping boat
1. “
2. “
” switch
” switch
EWM01510
WARNING
Do not use the reverse function to slow
down or stop the boat as it could cause
you to lose control, be ejected, or impact the steering wheel or other parts of
the boat. This could increase the risk of
serious injury. It could also damage the
shift mechanism.
 Do not shift into reverse while traveling
at planing speeds. Loss of control, boat
swamping, or damage to the boat could
occur.

The boat is not equipped with a separate
braking system. Water resistance stops it after the throttle lever is moved back to idle.
The stopping distance varies depending on
gross weight, water surface conditions, and
wind direction.
EMU30880
Trolling
EMU30890
Adjusting trolling speed
To increase the trolling speed, press the “ ”
switch.
To decrease the trolling speed, press the
“ ” switch.
TIP:
The trolling speed changes approximately
50 r/min each time a switch is pressed.
 If the trolling speed has been adjusted, the
engine returns to the normal trolling speed
when the engine is stopped and restarted
or when the engine speed exceeds approximately 3000 r/min.

EMU27821
Stopping engine
Before stopping the engine, first let it cool off
for a few minutes at idle or low speed. Stopping the engine immediately after operating
at high speed is not recommended.
EMU43191
Procedure
1.
Push and hold the engine stop button or
turn the main switch to “
” (off).
The trolling speed on outboard motors
equipped with the variable trolling RPM
switches can be adjusted approximately 50
r/min with each press of a switch.
61
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Operation
1
2
ZMU07586
1. Fuel joint
2. Fuel hose
3.
Disconnect the fuel hose from the fuel
joint on the fuel tank.
2
1
ZMU07443
1. Fuel joint
2. Fuel hose
4.
2.
Tighten the air vent screw by turning it
clockwise.
After stopping the engine, disconnect
the fuel hose from the fuel joint on the
outboard motor.
1
ZMU07444
1. Air vent screw
62
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Operation
5.
Remove the key if the boat will be left unattended.
TIP:
The engine can also be stopped by pulling
the cord and removing the clip from the engine shut-off switch, then turning the main
switch to “
” (off).
EMU27862
Trimming outboard motor
EWM00740
WARNING
Excessive trim for the operating conditions (either trim up or trim down) can
cause boat instability and can make
steering the boat more difficult. This increases the possibility of an accident. If
the boat begins to feel unstable or is hard
to steer, slow down and/or readjust the
trim angle.
The trim angle of the outboard motor helps
determine the position of the bow of the boat
in the water. Correct trim angle will help improve performance and fuel economy while
reducing strain on the engine. Correct trim
angle depends upon the combination of
boat, engine, and propeller. Correct trim is
also affected by variables such as the load in
the boat, sea conditions, and running speed.
EMU27888
Adjusting trim angle (Power trim and
tilt)
EWM00753
WARNING
Be sure all people are clear of the outboard motor when adjusting the trim
angle. Body parts can be crushed between the motor and the clamp bracket
when the motor is trimmed or tilted.
 Use caution when trying a trim position
for the first time. Increase speed gradually and watch for any signs of instability or control problems. Improper trim
angle can cause loss of control.
 If equipped with a power trim and tilt
switch located on the bottom cowling,
use the switch only when the boat is at
a complete stop with the engine off. Do
not adjust the trim angle with this
switch while the boat is moving.

Adjust the outboard motor trim angle using
the power trim and tilt switch.
1. Power trim and tilt switch
1. Trim operating angle
63
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Operation
body parts between the drive unit and
clamp bracket.
 Use caution when trying a trim position
for the first time. Increase speed gradually and watch for any signs of instability or control problems. Improper trim
angle can cause loss of control.
1.
2.
Stop the engine.
Place the tilt lock lever in the release position.
1. Power trim and tilt switch
1
UP
DN
ZMU06406
ZMU06394
1. Power trim and tilt switch
To raise the bow (trim-out), press the switch
“ ” (up).
To lower the bow (trim-in), press the switch
“ ” (down).
Make test runs with the trim set to different
angles to find the position that works best for
your boat and operating conditions.
EMU27892
Adjusting trim angle for hydro tilt
models
EWM00491
WARNING
Stop the engine before adjusting the
trim angle.
 Be sure all people are clear of the outboard motor when adjusting the trim
angle, also be careful not to pinch any

64
3.
Hold the rear of the top cowling with one
hand and tilt the engine to the desired
angle.
4. Place the tilt lock lever back into the lock
position to support the engine.
To raise the bow (“trim-out”), tilt the engine
up.
To lower the bow (“trim-in”), tilt the engine
down.
Make test runs with the trim set to different
angles to find the position that works best for
your boat and operating conditions.
EMU27912
Adjusting boat trim
When the boat is on plane, a bow-up attitude
results in less drag, greater stability and efficiency. This is generally when the keel line of
the boat is up about 3 to 5 degrees. With the
bow up, the boat may have a greater tendency to steer to one side or the other. Compensate for this as you steer. When the bow of
6BG-9-39-1E0.book 65 ページ 2013年4月29日 月曜日 午前9時41分
Operation
the boat is down, it is easier to accelerate
from a standing start onto plane.
TIP:
Bow Up
Too much trim-out puts the bow of the boat
too high in the water. Performance and economy are decreased because the hull of the
boat is pushing the water and there is more
air drag. Excessive trim-out can also cause
the propeller to ventilate, which reduces performance further, and the boat may “porpoise” (hop in the water), which could throw
the operator and passengers overboard.
Depending on the type of boat, the outboard
motor trim angle may have little effect on the
trim of the boat when operating.
EMU27935
Tilting up and down
If the engine will be stopped for some time or
if the boat is moored in shallows, the outboard motor should be tilted up to protect the
propeller and lower casing from damage by
collision with obstructions, and also to reduce salt corrosion.
EWM00222
WARNING
Make sure that no one is near the outboard motor when tilting the outboard
motor up or down. Otherwise, body parts
could be crushed between the outboard
motor and the clamp bracket.
EWM00250
WARNING
Bow Down
Too much trim-in causes the boat to “plow”
through the water, decreasing fuel economy
and making it hard to increase speed. Operating with excessive trim-in at higher speeds
also makes the boat unstable. Resistance at
the bow is greatly increased, heightening the
danger of “bow steering” and making operation difficult and dangerous.
Leaking fuel is a fire hazard. If there is a
fuel joint on the outboard motor, disconnect the fuel line or close the fuel cock if
the engine will be tilted for more than a
few minutes. Otherwise fuel may leak.
ECM00241
NOTICE

Before tilting the outboard motor, stop
the engine by following the procedure
65
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Operation
shake loose from the tilt support and
fall. If the motor cannot be trailered in
the normal running position, use an
additional support device to secure it
in the tilt position. For more detailed
information, see page 72. [ECM01641]
on page 61. Never tilt the outboard motor while the engine is running. Severe
damage from overheating can result.
 Do not tilt up the engine by pushing the
tiller handle (if equipped) because this
could break the handle.
EMU33152
Procedure for tilting up (hydro tilt
models)
1.
Place the gear shift lever in neutral.
ZMU06396
EMU32724
Procedure for tilting up (power trim
and tilt models)
1.
2.
Place the tilt lock lever in the release position.
Place the remote control lever / gear
shift lever in neutral.
N
ZMU03196
ZMU06406
3.
66
Hold the rear of the top cowling with one
hand, tilt the engine up, and turn the tilt
support lever toward you or tilt support
knob into the clamp bracket, and then
place the tilt lock lever back into the lock
position to support the outboard motor.
NOTICE: Do not use the tilt support
lever or knob when trailering the
boat. The outboard motor could
6BG-9-39-1E0.book 67 ページ 2013年4月29日 月曜日 午前9時41分
Operation
2.
er tilt unit loses pressure. [EWM00262]
NOTICE: Do not use the tilt support
lever or knob when trailering the
boat. The outboard motor could
shake loose from the tilt support and
fall. If the motor cannot be trailered in
the normal running position, use an
additional support device to secure it
in the tilt position. For more detailed
information, see page 72. [ECM01641]
Press the power trim and tilt switch “ ”
(up) until the outboard motor has tilted
up completely.
ZMU06396
4.
UP
Models equipped with trim rods: Once
the outboard motor is supported with the
tilt support lever, press the power trim
and tilt switch “ ” (down) to retract the
trim rods. NOTICE: Make sure that the
trim rods retracts completely during
mooring. This protects the rods from
marine growth and corrosion, which
could damage the power trim and tilt
mechanism. [ECM00252]
EMU34480
ZMU06407
3.
Push the tilt support knob into the clamp
bracket to support the engine.
WARNING! After tilting the outboard
motor, be sure to support it with the
tilt support knob or tilt support lever.
Otherwise the outboard motor could
fall back down suddenly if oil in the
power trim and tilt unit or in the pow-
Procedure for tilting down (hydro tilt
models)
1.
Release the tilt lock lever.
67
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Operation
2.
(up) until the outboard motor is supported by the tilt rod and the tilt support knob
becomes free.
Pull out the tilt support knob.
ZMU06412
2.
Hold the rear of the top cowling with one
hand, tilt the outboard motor up slightly
and pull out the tilt support knob or return the tilt support lever.
ZMU06408
3.
Push the power trim and tilt switch “ ”
(down) to lower the outboard motor to
the desired position.
DN
UP
DN
ZMU06408
3.
4.
Slowly tilt the outboard motor down.
Place the tilt lock lever in the lock position.
ZMU06404
EMU33121
Procedure for tilting down (power
trim and tilt models)
1.
68
Push the power trim and tilt switch “
”
ZMU01936
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Operation
DN
ZMU03646
ZMU06410
EMU28062
Shallow water
EMU28081
EMU32840
Procedure for hydro tilt models
1. Place the gear shift lever in neutral.
Hydro tilt models
The outboard motor can be tilted up partially
to allow operation in shallow water.
EWM00271
WARNING
Run the boat at the lowest possible
speed when using the shallow water
cruising system.
 Use extra care when operating in reverse. Too much reverse thrust can
cause the outboard motor to lift out of
the water, increasing the chance of accident and personal injury.

2.
Pull the tilt lock lever up to the release
position.
ECM00260
NOTICE
Do not tilt the outboard motor up so that
the cooling water inlet on the lower unit is
above the surface of the water when setting up for and cruising in shallow water.
Otherwise severe damage from overheating can result.
ZMU06406
3.
4.
Slightly tilt the outboard motor up to the
desired position and push the tilt lock lever down to the lock position.
To return the outboard motor to the normal running position, pull the tilt lock lever up to the release position and slowly
69
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Operation
5.
tilt the outboard motor down.
Push the tilt lock lever down to the lock
position.
2.
ZMU06404
EMU32851
Power trim and tilt models
The outboard motor can be tilted up partially
to allow operation in shallow water.
ECM00260
NOTICE
Do not tilt the outboard motor up so that
the cooling water inlet on the lower unit is
above the surface of the water when setting up for and cruising in shallow water.
Otherwise severe damage from overheating can result.
Slightly tilt the outboard motor up to the
desired position using the power trim
and tilt switch. WARNING! Using the
power trim and tilt switch on the bottom cowling while the boat is moving
or engine is on could increase the
risk of falling overboard and could
distract the operator, increasing the
risk of collision with another boat or
an obstacle. [EWM01850]
UP
UP
DN
EMU32913
Procedure for power trim and tilt models
1. Place the remote control lever / gear
shift lever in neutral.
ZMU01935
70
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Operation
UP
ZMU06407
3.
To return the outboard motor to the normal running position, press the power
trim and tilt switch and slowly tilt the outboard motor down.
EMU35391
Cruising in other conditions
Cruising in salt water
After operating in salt water, flush the cooling
water passages with fresh water to prevent
them from becoming clogged. Also rinse the
outside of the outboard motor with fresh water.
Cruising in muddy, turbid, or acidic water
Water in some areas can be acidic or with a
lot of sediment in it, such as muddy or turbid
(cloudy) water. After operating in such water,
flush the cooling passages with fresh water
to prevent corrosion. Also rinse the outside
of the outboard motor with fresh water.
71
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Maintenance
EMU43251
Transporting and storing
outboard motor
EWM02620
WARNING





USE CARE when transporting fuel tank,
whether in a boat or car.
DO NOT fill fuel container to maximum
capacity. Gasoline will expand considerably as it warms up and can build up
pressure in the fuel container. This can
cause fuel leakage and a potential fire
hazard.
Leaking fuel is a fire hazard. When
transporting and storing the outboard
motor, disconnect the fuel line from the
outboard motor to prevent fuel from
leaking.
Never get under the outboard motor
while it is tilted. Severe injury could occur if the outboard motor accidentally
falls.
Do not use the tilt support lever or knob
when trailering the boat. The outboard
motor could shake loose from the tilt
support and fall. If the outboard motor
cannot be trailered in the normal running position, use an additional support device to secure it in the tilt
position.
When storing or transporting the outboard
motor, make sure to follow the procedure listed below.
 Disconnect the fuel hose from the fuel joint
on the outboard motor.
 Tighten the fuel tank cap and its air vent
screw.
 Store the fuel tank in a well-ventilated
place.
 Store the fuel tank in a place that is stable
and not exposed to shocks.
72
When the outboard motor is tilted for a prolonged time for mooring or trailering the boat,
make sure to follow the procedure listed below.
 Disconnect the fuel hose from the fuel joint
on the outboard motor.
 Tighten the fuel tank cap and its air vent
screw.
The outboard motor should be transported
and stored in the normal running position. If
there is insufficient road clearance in this position, then trailer the outboard motor in the
tilt position using a motor support device
such as a transom saver bar. Consult your
Yamaha dealer for further details.
ZMU03659
EMU28280
Storing outboard motor
When storing your Yamaha outboard motor
for prolonged periods of time (2 months or
longer), several important procedures must
be performed to prevent excessive damage.
It is advisable to have your outboard motor
serviced by an authorized Yamaha dealer
prior to storage. However, you, the owner,
with a minimum of tools, can perform the following procedures.
ECM01080
NOTICE

To prevent problems which can be
caused by oil entering the cylinder from
the sump, keep the outboard motor in
6BG-9-39-1E0.book 73 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
the attitude shown when transporting
and storing it. If storing or transporting
the outboard motor on its side (not upright), put it on a cushion after draining
the engine oil.
 Do not place the outboard motor on its
side before the cooling water has
drained from it completely, otherwise
water may enter the cylinder through
the exhaust port and cause engine trouble.
 Store the outboard motor in a dry, wellventilated place, not in direct sunlight.
EMU28305
1
2
ZMU02051
1. Water surface
2. Lowest water level
5.
Fill the tank with fresh water to above the
level of the anti-cavitation plate.
NOTICE: If the fresh water level is below the level of the anti-cavitation
plate, or if the water supply is insufficient, engine seizure may occur.
6.
Cooling system flushing is essential to
prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fogging of the engine is mandatory
to prevent excessive engine damage
due to rust. Perform the flushing and
fogging at the same time. WARNING!
Do not touch or remove electrical
parts when starting or during operation. Keep hands, hair, and clothes
away from the flywheel and other rotating parts while the engine is running. [EWM00091]
Run the engine at a fast idle for 10–15
minutes in neutral position.
Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine
Fogging Oil” alternately into each carburetor or the fogging hole of the silencer
cover, if equipped. When properly done,
the engine will smoke excessively and
Procedure
EMU28377
Flushing in a test tank
ECM00301
NOTICE
Before starting the engine, make sure to
supply water to the cooling water passages. Otherwise, the engine could overheat
and be damaged.
1.
2.
[ECM00291]
Wash the outboard motor body using
fresh water. NOTICE: Do not spray water into the air intake. [ECM01840] For further information, see page 76.
Fill the fuel tank with fresh fuel and add
one ounce of “Yamaha Fuel Conditioner
and Stabilizer” to each gallon of fuel.
TIP:
The use of “Yamaha Fuel Conditioner and
Stabilizer” eliminates the need to drain the
fuel system. Consult your Yamaha dealer or
other qualified mechanic if the fuel system is
to be drained instead.
3. Remove the engine top cowling and silencer cover.
4. Install the outboard motor on the test
tank.
7.
8.
73
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Maintenance
almost stall.
Remove the outboard motor from the
test tank.
10. Drain the cooling water completely out of
the motor. Clean the body thoroughly.
11. Install the silencer cover/cap and top
cowling.
9.
EMU30008
Flushing with the flushing attachment
1. Wash the outboard motor body using
fresh water. NOTICE: Do not spray water into the air intake. [ECM01840] For further information, see page 76.
2. Fill the fuel tank with fresh fuel and add
one ounce of “Yamaha Fuel Conditioner
and Stabilizer” to each gallon of fuel.
1. Flushing attachment
5.
TIP:
The use of “Yamaha Fuel Conditioner and
Stabilizer” eliminates the need to drain the
fuel system. Consult your Yamaha dealer or
other qualified mechanic if the fuel system is
to be drained instead.
3. Remove the top cowling and propeller.
4. Install the flushing attachment over the
cooling water inlet. NOTICE: Do not run
the engine without supplying it with
cooling water. Either the engine water
pump will be damaged or the engine
will be damaged from overheating.
Before starting the engine, be sure to
supply water to the cooling water
passages. Avoid running the outboard motor at high speed while on
the flushing attachment, otherwise
overheating could occur. [ECM02000]
74
Cooling system flushing is essential to
prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fogging/lubricating of the engine is
mandatory to prevent excessive engine
damage due to rust. Perform the flushing and fogging at the same time.
WARNING! Do not touch or remove
electrical parts when starting or during operation. Keep hands, hair, and
clothes away from the flywheel and
other rotating parts while the engine
is running. [EWM00091]
TIP:
When using the flushing attachment, maintain adequate water pressure and a steady
water flow.
 If the overheat alert device is activated,
turn the engine off, and consult your
Yamaha dealer.
6. Run the engine at a fast idle for a few
minutes in neutral position while supplying fresh water.
7. Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine
Fogging Oil” alternately into the intake
silencer or the fogging hole of the silencer cover, if equipped. When properly
done, the engine will smoke excessively

6BG-9-39-1E0.book 75 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
and almost stall.
Remove the flushing attachment and
wipe off any excess water.
9. Install the top cowling and propeller.
10. Drain the cooling water completely out of
the motor. Clean the body thoroughly.
3.
8.
TIP:
A flushing attachment is available from your
Yamaha dealer.
EMU28402
Lubrication
1.
2.
3.
Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 82.
Change the gear oil. For instructions,
see page 87. Inspect the oil for the presence of water that indicates a leaky seal.
Seal replacement should be performed
by an authorized Yamaha dealer prior to
use.
Grease all grease fittings. For further details, see page 81.
Wax the cowling with a non-abrasive
wax such as “Yamaha Silicone Wax”.
EMU28445
Flushing power unit
Perform this procedure right after operation
for the most thorough flushing.
ECM01530
NOTICE
Do not perform this procedure while the
engine is running. The water pump may
be damaged and severe damage from
overheating can result.
1.
After shutting off the engine, unscrew
the garden hose connector from the fitting on the bottom cowling.
1
3
TIP:
2
For long-term storage, fogging the engine
with oil is recommended. Contact your
Yamaha dealer for information about fogging
oil and procedures for your engine.
EMU30267
Cleaning and anticorrosion
measures
1.
2.
Wash down the exterior of the outboard
motor with fresh water and dry off completely. NOTICE: Do not spray water
into the air intake. [ECM01840] For further
information, see page 76.
Spray the outboard motor exterior with
“Yamaha Silicone Protectant”. NOTICE:
Do not spray when the engine is running. Also, do not spray near the silencer or into the engine. Otherwise
the engine could be damaged. [ECM01402]
ZMU06415
1. Fitting
2. Garden hose connector
3. Garden hose adapter
2.
Screw the garden hose adapter onto a
garden hose, which is connected to a
75
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Maintenance
3.
4.
fresh water supply, and then connect it
to the garden hose connector.
With the engine off, turn on the water tap
and let the water flush through the cooling passages for about 15 minutes. Turn
off the water and disconnect the garden
hose adapter from the garden hose connector.
Reinstall the garden hose connector
onto the fitting on the bottom cowling.
Tighten
the
connector
securely.
NOTICE: Do not leave the garden
hose connector loose on the bottom
cowling fitting or let the hose hang
free during normal operation. Water
will leak out of the connector instead
of cooling the engine, which can
cause serious overheating. Be sure
the connector is tightened securely
on the fitting after flushing the engine. [ECM00541]
TIP:
When flushing the engine with the boat in
the water, tilting up the outboard motor until it is completely out of the water will
achieve better results.
 For cooling system flushing instructions,
see page 72.

EMU44340
Cleaning the outboard motor
When cleaning the outboard motor, the top
cowling must be installed.
1. Wash the exterior of the outboard motor
using fresh water. NOTICE: Do not
spray water into the air intake. [ECM01840]
76
1
ZMU07861
1. Air intake
2.
Drain the cooling water completely out of
the outboard motor. Clean the body thoroughly.
EMU28461
Checking painted surface of
outboard motor
Check the outboard motor for scratches,
nicks, or flaking paint. Areas with damaged
paint are more likely to corrode. If necessary,
clean and paint the areas. A touch-up paint is
available from your Yamaha dealer.
EMU2848B
Periodic maintenance
EWM01871
WARNING
These procedures require mechanical
skills, tools, and supplies. If you do not
have the proper skills, tools, or supplies
to perform a maintenance procedure,
have a Yamaha dealer or other qualified
mechanic do the work.
The procedures involve disassembling
the motor and exposing dangerous parts.
To reduce the risk of injury from moving,
hot, or electrical parts:
 Turn off the engine and keep the key(s)
and engine shut-off cord (lanyard) with
you when you perform maintenance unless otherwise specified.
6BG-9-39-1E0.book 77 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
The power trim and tilt switches operate even when the ignition key is off.
Keep people away from the switches
whenever working around the motor.
When the motor is tilted, keep away
from the area under it or between it and
the clamp bracket. Be sure no one is in
this area before operating the power
trim and tilt mechanism.
 Allow the engine to cool before handling hot parts or fluids.
 Always completely reassemble the motor before operation.

Maintenance, replacement, or repair of
the emission control devices and systems may be performed by any marine
engine repair establishment or individual.
All warranty repairs, however, including
those to the emission control system,
must be performed by an authorized
Yamaha marine dealership.
A service manual is available for purchase
through your Yamaha dealer for owners who
have the mechanical skills, tools, and other
equipment necessary to perform maintenance not covered by this owner’s manual.
speeds, with sufficient time for engine warm
up and cool-down, a medium to light load,
and an average cruising speed near the
3000 to 4000 rpm range. As with any engine,
however, if your normal operating conditions
are different, you should consider service
more often than shown, especially how often
you change your engine oil and gear oil. Examples might include extended wide-openthrottle use or long periods of trolling or
idling, carrying heavy loads, or frequent
starting and stopping or shifting. More frequent maintenance will often pay off many
times over in increased engine life and greater owner satisfaction. Consult your Yamaha
dealer for additional maintenance recommendations.
EMU28511
Replacement parts
If replacement parts are necessary, use only
genuine Yamaha parts or parts of equivalent
design and quality. Any part of inferior quality
may malfunction, and the resulting loss of
control could endanger the operator and
passengers. Yamaha genuine parts and accessories are available from your Yamaha
dealer.
EMU35521
Maintenance interval guidelines
The service intervals provided in the Maintenance Chart were developed based upon
“typical” use that includes operating at varied
77
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Maintenance
EMU34446
Maintenance chart 1
TIP:
Refer to the sections in this chapter for explanations of each owner-specific action.
The maintenance cycle on these charts assume usage of 100 hours per year and regular
flushing of the cooling water passages. Maintenance frequency should be adjusted when
operating the engine under adverse conditions such as extended trolling.
 Disassembly or repairs may be necessary depending on the outcome of maintenance
checks.
 Expendable or consumable parts and lubricants will lose their effectiveness over time and
through normal usage regardless of the warranty period.
 When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine should
be flushed with clean water after each use.
The “ ” symbol indicates the check-ups which you may carry out yourself.
The “ ” symbol indicates work to be carried out by your Yamaha dealer.


Initial
Item
Anode(s) (external)
Anode(s) (cylinder
head)
Anodes (exhaust cover,
exhaust guide)
Battery (electrolyte
level, terminal)
Battery (electrolyte
level, terminal)
Cooling water leakage
Cowling lock lever
Engine starting condition/noise
Engine idle
speed/noise
Engine oil
Engine oil filter (cartridge)
Fuel filter (can be disassembled)
Fuel line (High pressure)
78
Actions
Inspection or replacement as necessary
Inspection or replacement as necessary
Replacement
Inspection
Fill, charging or replacing as necessary
Inspection or replacement as necessary
Inspection
Inspection
Inspection
Replacement
Replacement
Inspection or replacement as necessary
Inspection
Every
20 hours 100 hours 300 hours 500 hours
(3 months) (1 year)
(3 years)
(5 years)
6BG-9-39-1E0.book 79 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
Initial
Item
Fuel line (High pressure)
Fuel line (Low pressure)
Fuel line (Low pressure)
Fuel pump
Actions
Inspection
Inspection or replacement as necessary
Inspection or replacement as necessary
Inspection
Gear oil
Replacement
Greasing points
Greasing
Impeller/water pump
housing
Impeller/water pump
housing
Inspection or replacement as necessary
Power trim and tilt unit
Inspection
Propeller/propeller
nut/cotter pin
Inspection or replacement as necessary
Inspection, adjustment
or replacement as necessary
Inspection or replacement as necessary
Inspection or replacement as necessary
Spark plug(s)
Spark plug caps/spark
plug wires
Water from the cooling
water pilot hole
Throttle link/throttle
cable
Thermostat
Timing belt
Valve clearance
20 hours 100 hours 300 hours 500 hours
(3 months) (1 year)
(3 years)
(5 years)
Inspection or replacement as necessary
Fuel/engine oil leakage
Shift link/shift cable
Every
Replacement
Inspection
Inspection, adjustment
or replacement as necessary
Inspection or replacement as necessary
Inspection or replacement as necessary
Inspection and adjustment
Cooling water inlet
Inspection
Main switch/stop switch
Inspection or replacement as necessary
79
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Maintenance
Initial
Item
Actions
Wire harness connections/wire coupler connections
Inspection or replacement as necessary
(Yamaha) Meter/gauge
Inspection
Fuel tank (Yamaha portable tank)
Inspection and cleaning as necessary
Every
20 hours 100 hours 300 hours 500 hours
(3 months) (1 year)
(3 years)
(5 years)
EMU34451
Maintenance chart 2
Item
Actions
Exhaust guide/exhaust
manifold
Inspection or replacement as necessary
Timing belt
Replacement
80
Every
1000 hours
6BG-9-39-1E0.book 81 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
EMU28934
Greasing
Yamaha marine grease (Water resistant grease)
F30EHA, F40EHA,
ZMU06417
81
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Maintenance
F30A, F40A
ZMU06416
EMU28958
Cleaning and adjusting spark plug
The spark plug is an important engine component and is easy to inspect. The condition
of the spark plug can indicate something
about the condition of the engine. For example, if the center electrode porcelain is very
white, this could indicate an intake air leak or
carburetion problem in that cylinder. Do not
attempt to diagnose any problems yourself.
Instead, take the outboard motor to a
Yamaha dealer. You should periodically remove and inspect the spark plug because
82
heat and deposits will cause the spark plug
to slowly break down and erode.
1. Remove the spark plug caps from the
spark plugs.
2. Remove the spark plug. If electrode erosion becomes excessive, or if carbon
and other deposits are excessive, you
should replace the spark plug with another of the correct type. WARNING!
When removing or installing a spark
plug, be careful not to damage the insulator. A damaged insulator could
6BG-9-39-1E0.book 83 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
allow external sparks, which could
lead to explosion or fire. [EWM00561]
Standard spark plug:
DPR6EB-9
3.
Be sure to use the specified spark plug,
otherwise the engine may not operate
properly. Before fitting the spark plug,
measure the electrode gap with a wire
thickness gauge; replace it if out of specification.
torque-wrench.
EMU29044
Inspecting idle speed
EWM00451
WARNING
Do not touch or remove electrical parts
when starting or during operation.
 Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.

ECM00490
NOTICE
This procedure must be performed while
the outboard motor is in the water. A
flushing attachment or test tank can be
used.
1. Spark plug gap
2. Spark plug part number
3. Spark plug I.D. mark (NGK)
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
4.
When fitting the plug, wipe off any dirt
from the threads, and then screw it in to
the correct torque.
Spark plug torque:
18 Nm (1.84 kgf-m, 13.3 ft-lb)
If the boat is not equipped with a tachometer
for the outboard motor, use a diagnostic tachometer for this procedure. Results may
vary depending on whether testing is conducted with the flushing attachment, in a test
tank, or with the outboard motor in the water.
1. Start the engine and allow it to warm up
fully in neutral until it is running smoothly.
2. Once the engine has warmed up, verify
whether the idle speed is set to specification. For idle speed specifications, see
page 13. If you have difficulty verifying
the idle speed, or the idle speed requires
adjustment, consult a Yamaha dealer or
other qualified mechanic.
EMU38806
Changing engine oil
EWM00760
TIP:
If a torque-wrench is not available when you
are fitting a spark plug, a good estimate of
the correct torque is 1/4 to 1/2 a turn past finger-tight. Have the spark plug adjusted to the
correct torque as soon as possible with a
WARNING
Avoid draining the engine oil immediately after stopping the engine. The oil
is hot and should be handled with care
to avoid burns.
 Be sure the outboard motor is securely

83
6BG-9-39-1E0.book 84 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
fastened to the transom or a stable
stand.
ECM01710
NOTICE
Change the engine oil after the first 20
hours of operation or 3 months, and every 100 hours or at 1-year intervals thereafter. Otherwise the engine will wear
quickly.
To prevent spilling oil where it could cause
damage to nature, it is strongly recommended that you use an oil changer to change the
engine oil. If an oil changer is not available,
drain the engine oil by removing the drain
screw. If you are not familiar with the procedure for changing the engine oil, consult your
Yamaha dealer.
1. Put the outboard motor in an upright position (not tilted). NOTICE: If the outboard motor is not level, the oil level
indicated on the oil dipstick may not
be accurate. [ECM01861]
1
ZMU06418
1. Oil changer
TIP:
When using an oil changer, skip steps 6 and
7.
6. Prepare a suitable container that holds a
larger amount than the engine oil capacity. Remove the drain screw and gasket
while holding the container under the
drain hole. Let the oil drain completely.
Wipe up any spilled oil immediately.
2
1
ZMU07860
ZMU03659
2.
3.
4.
5.
84
Start the engine. Warm it up and keep
the idle speed for 5-10 minutes.
Stop the engine and leave it for 5-10
minutes.
Remove the top cowling.
Remove the oil filler cap. Pull out the dipstick and use the oil changer to extract
the oil completely.
1. Drain screw
2. Gasket
TIP:
If the oil does not drain easily, change the tilt
angle or turn the outboard motor to port and
starboard to drain the oil.
7. Put a new gasket on the oil drain screw.
Apply a light coat of oil to the gasket and
install the drain screw.
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Maintenance
Drain screw tightening torque:
27 Nm (2.75 kgf-m, 19.9 ft-lb)
TIP:
If a torque wrench is not available when you
are installing the drain screw, finger tighten
the screw just until the gasket comes into
contact with the surface of the drain hole.
Then tighten 1/4 to 1/2 turn more. Tighten
the drain screw to the correct torque with a
torque wrench as soon as possible.
8. Add the correct amount of oil through the
filler hole. Put back the filler cap and the
dipstick. NOTICE: Overfilling the oil
could cause leakage or damage. If the
oil level is above the upper level
mark, drain until the level meets the
specified capacity. [ECM01850]
utes.
10. Remove the oil dipstick and wipe it
clean.
11. Insert the dipstick and remove it again.
Be sure to completely insert the dipstick
into the dipstick guide, otherwise the oil
level measurement will be incorrect.
12. Recheck the oil level using the dipstick
to be sure the level falls between the upper and lower marks. Consult your
Yamaha dealer if the oil level is out of
specified level.
1
3
2
1
ZMU05091
1. Lower mark
2. Oil dipstick
3. Upper mark
ZMU06419
1. Oil filler cap
Recommended engine oil:
YAMALUBE 4M FC-W or 4-stroke outboard motor oil
Engine oil quantity (without oil filter replacement):
1.5 L (1.59 US qt, 1.32 Imp.qt)
Engine oil quantity (with oil filter replacement):
1.7 L (1.80 US qt, 1.50 Imp.qt)
9.
13. Start the engine and make sure that the
low oil pressure-alert indicator remains
off. Also, make sure that there are no oil
leaks. NOTICE: If the low oil pressurealert indicator comes on or if there
are oil leaks, stop the engine and find
the cause. Continued operation with
a problem could cause severe engine
damage. Consult your Yamaha dealer
if the problem cannot be located and
corrected. [ECM01622]
14. Install the top cowling.
15. Dispose of used oil according to local
regulations.
Leave the outboard motor for 5-10 min-
85
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Maintenance
TIP:
For more information on the disposal of
used oil, consult your Yamaha dealer.
 Change the oil more often when operating
the engine under adverse conditions such
as extended trolling.

EMU29114
Inspecting wiring and connectors
Inspect that each connector is engaged
securely.
 Inspect that each ground lead is properly
secured.

switch to “
” (off) and remove the key,
and remove the clip from the engine shutoff switch. Turn off the battery cut-off
switch if your boat has one.
Do not use your hand to hold the propeller
when loosening or tightening the propeller
nut. Put a wood block between the anti-cavitation plate and the propeller to prevent the
propeller from turning.
ZMU01897
ZMU06436
Checkpoints
 Check each of the propeller blades for erosion from cavitation or ventilation, or other
damage.
 Check the propeller shaft for damage.
 Check the splines for wear or damage.
 Check for fish line tangled around the propeller shaft.
ZMU06437
EMU32112
Checking propeller
EWM01881
WARNING
You could be seriously injured if the engine accidentally starts when you are
near the propeller. Before inspecting, removing, or installing the propeller, place
the shift control in neutral, turn the main
86

Check the propeller shaft oil seal for damage.
6BG-9-39-1E0.book 87 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
EMU30662
Removing propeller
2.
EMU29197
Spline models
1. Straighten the cotter pin and pull it out
using a pair of pliers.
2. Remove the propeller nut, washer, and
spacer (if equipped). WARNING! Do
not use your hand to hold the propeller when loosening the propeller nut.
3.
[EWM01890]
shaft.
Install the spacer (if equipped), thrust
washer, washer (if equipped), and propeller on the propeller shaft. NOTICE:
Make sure to install the thrust washer
before installing the propeller. Otherwise, the lower case and propeller
boss could be damaged. [ECM01881]
Install the spacer (if equipped) and the
washer. Tighten the propeller nut to the
specified torque.
Propeller nut tightening torque:
35 Nm (3.57 kgf-m, 25.8 ft-lb)
4.
Align the propeller nut with the propeller
shaft hole. Insert a new cotter pin in the
hole and bend the cotter pin ends.
NOTICE: Do not reuse the cotter pin.
Otherwise, the propeller can come off
during operation. [ECM01891]
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
3.
Remove the propeller, washer
equipped), and thrust washer.
(if
EMU30672
Installing propeller
EMU29234
Spline models
ECM00501
NOTICE
Make sure to use a new cotter pin and
bend the ends over securely. Otherwise,
the propeller could come off during operation and be lost.
1.
Apply Yamaha marine grease or a corrosion resistant grease to the propeller
TIP:
If the propeller nut does not align with the
propeller shaft hole after tightening to the
specified torque, tighten the nut further to
align it with the hole.
EMU2928B
Changing gear oil
EWM00800
WARNING

Be sure the outboard motor is securely
fastened to the transom or a stable
87
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Maintenance
stand. You could be severely injured if
the outboard motor falls on you.
 Never get under the lower unit while it
is tilted, even when the tilt support lever
or knob is locked. Severe injury could
occur if the outboard motor accidentally falls.
1.
2.
3.
Tilt the outboard motor so that the gear
oil drain screw is at the lowest point possible.
Place a suitable container under the
gear case.
Remove the gear oil drain screw and
gasket. NOTICE: If there is an excessive quantity of metal particles on the
magnetic gear oil drain screw, this
can indicate lower unit problem. Consult your Yamaha dealer. [ECM01900]
milky or contains water or a large
amount of metal particles, the gear
case may be damaged. Have a
Yamaha dealer check and repair the
outboard motor. [ECM00713]
TIP:
For disposal of used oil, consult your
Yamaha dealer.
5. Put the outboard motor in a vertical position. Using a flexible or pressurized filling device, inject the gear oil into the
gear oil drain screw hole.
Recommended gear oil:
Yamalube Marine Gearcase Lube or
Hypoid gear oil
Recommended gear oil grade:
SAE 90 API GL-4
Gear oil quantity:
0.430 L (0.455 US qt, 0.378 Imp.qt)
2
1
ZMU03273
1. Gear oil drain screw
2. Oil level plug
TIP:
If a magnetic gear oil drain screw is
equipped, remove all metal particles from
the screw before installing it.
 Always use new gaskets. Do not reuse the
removed gaskets.
4. Remove the oil level plug and gasket to
allow the oil to drain completely.
NOTICE: Check the used gear oil after
it has been drained. If the gear oil is
ZMU03274
6.

88
Put a new gasket on the oil level plug.
When the oil begins to flow out of the oil
level plug hole, insert and tighten the oil
level plug.
Tightening torque:
9 Nm (0.92 kgf-m, 6.6 ft-lb)
7.
Put a new gasket on the gear oil drain
screw. Insert and tighten the gear oil
drain screw.
6BG-9-39-1E0.book 89 ページ 2013年4月29日 月曜日 午前9時41分
Maintenance
Tightening torque:
9 Nm (0.92 kgf-m, 6.6 ft-lb)
EMU29316
Inspecting and replacing anode(s)
Yamaha outboard motors are protected from
corrosion by sacrificial anodes. Inspect the
external anodes periodically. Remove scales
from the surfaces of the anodes. Consult a
Yamaha dealer for replacement of external
anodes.
ZMU06420
ECM00720
NOTICE
Do not paint anodes, as this would render
them ineffective.
ZMU06421
TIP:
ZMU02924
Inspect ground leads attached to external
anodes on equipped models. Consult a
Yamaha dealer for inspection and replacement of internal anodes attached to the power unit.
EMU29323
Checking battery (for electric start
models)
EWM01902
WARNING
ZMU03664
Battery electrolyte is poisonous and
caustic, and batteries generate explosive
hydrogen gas. When working near the
battery:
 Wear protective eye gear and rubber
gloves.
 Do not smoke or bring any other source
of ignition near the battery.
The procedure for checking the battery var-
89
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Maintenance
ies for different batteries. This procedure
contains typical checks that apply to many
batteries, but you should always refer to the
battery manufacturer’s instructions.
ECM01920
NOTICE
A poorly maintained battery will quickly
deteriorate.
1.
Check the electrolyte level.
ECM01124
NOTICE
Do not reverse the battery cables. Otherwise, the electrical parts could be damaged.
1.
Make sure the main switch (on applicable models) is “
” (off) before working
on the battery.
Connect the red battery cable to the
POSITIVE (+) terminal first. Then connect the black battery cable to the NEGATIVE (-) terminal.
2.
1
2
3
2.
3.
Check the battery’s charge. If your boat
is equipped with the digital speedometer, the voltmeter and low battery alert
functions will help you monitor the battery’s charge. If the battery needs charging, consult your Yamaha dealer.
Check the battery connections. They
should be clean, secure, and covered by
an insulating cover. WARNING! Bad
connections can produce shorting or
arcing and cause an explosion.
[EWM01912]
EMU29334
Connecting the battery
ZMU01811
1. Red cable
2. Black cable
3. Battery
3.
EMU29371
Disconnecting the battery
1.
EWM00572
WARNING
Mount the battery holder securely in a
dry, well-ventilated, vibration-free location in the boat. Install a fully charged battery in the holder.
The electrical contacts of the battery and
cables must be clean and properly connected, or the battery will not start the
engine.
2.
Turn off the battery cut-off switch (if
equipped) and main switch. NOTICE: If
they are left on, the electrical system
can be damaged. [ECM01930]
Disconnect the negative cable(s) from
the negative (-) terminal. NOTICE: Always disconnect all negative (-) cables first to avoid a short circuit and
damage to the electrical system.
[ECM01940]
90
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Maintenance
3.
4.
Disconnect the positive cable(s) and remove the battery from the boat.
Clean, maintain, and store the battery
according to the manufacturer’s instructions.
91
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Trouble Recovery
EMU29427
Troubleshooting
A problem in the fuel, compression, or ignition systems can cause poor starting, loss of
power, or other problems. This section describes basic checks and possible remedies,
and covers all Yamaha outboard motors.
Therefore some items may not apply to your
model.
If your outboard motor requires repair, bring
it to your Yamaha dealer.
If the engine trouble-alert indicator is flashing, consult your Yamaha dealer.
Starter will not operate.
Q. Is battery capacity weak or low?
A. Check battery condition. Use battery of
recommended capacity.
Q. Are battery connections loose or corroded?
A. Tighten battery cables and clean battery
terminals.
Q. Is fuse for electric start relay or electric circuit blown?
A. Check for cause of electric overload and
repair. Replace fuse with one of correct amperage.
Q. Are starter components faulty?
A. Have serviced by a Yamaha dealer.
Q. Is shift lever in gear?
A. Shift to neutral.
Engine will not start (starter operates).
Q. Is fuel tank empty?
A. Fill tank with clean, fresh fuel.
Q. Is fuel contaminated or stale?
92
A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Q. Is starting procedure incorrect?
A. See page 56.
Q. Has fuel pump malfunctioned?
A. Have serviced by a Yamaha dealer.
Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
Q. Are spark plug cap(s) fitted incorrectly?
A. Check and re-fit cap(s).
Q. Is ignition wiring damaged or poorly connected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or broken wires.
Q. Are ignition parts faulty?
A. Have serviced by a Yamaha dealer.
Q. Is engine shut-off cord (lanyard) not attached?
A. Attach cord.
Q. Are engine inner parts damaged?
A. Have serviced by a Yamaha dealer.
Engine idles irregularly or stalls.
Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
6BG-9-39-1E0.book 93 ページ 2013年4月29日 月曜日 午前9時41分
Trouble Recovery
Q. Is fuel system obstructed?
A. Check for pinched or kinked fuel line or
other obstructions in fuel system.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Q. Have ignition parts failed?
A. Have serviced by a Yamaha dealer.
Q. Has alert system activated?
A. Find and correct cause of alert.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Q. Is ignition wiring damaged or poorly connected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or broken wires.
A. Return to home position.
Q. Is motor angle too high?
A. Return to normal operating position.
Q. Is carburetor clogged?
A. Have serviced by a Yamaha dealer.
Q. Is fuel joint connection incorrect?
A. Connect correctly.
Q. Is throttle valve adjustment incorrect?
A. Have serviced by a Yamaha dealer.
Q. Is battery cable disconnected?
A. Connect securely.
Alert buzzer sounds or indicator lights.
Q. Is cooling system clogged?
A. Check water intake for restriction.
Q. Is engine oil level low?
A. Fill oil tank with specified engine oil.
Q. Is specified engine oil not being used?
A. Check and replace oil as specified.
Q. Is heat range of spark plug incorrect?
A. Inspect spark plug and replace it with recommended type.
Q. Is thermostat faulty or clogged?
A. Have serviced by a Yamaha dealer.
Q. Is specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Are carburetor adjustments incorrect?
A. Have serviced by a Yamaha dealer.
Q. Is engine oil contaminated or deteriorated?
A. Replace oil with fresh, specified type.
Q. Is fuel pump damaged?
A. Have serviced by a Yamaha dealer.
Q. Is air vent screw on fuel tank closed?
A. Open air vent screw.
Q. Is choke knob pulled out?
Q. Is oil filter clogged?
A. Have serviced by a Yamaha dealer.
Q. Has oil feed/injection pump malfunctioned?
A. Have serviced by a Yamaha dealer.
93
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Trouble Recovery
Q. Is load on boat improperly distributed?
A. Distribute load to place boat on an even
plane.
on gear housing?
A. Remove foreign matter and clean lower
unit.
Q. Is water pump or thermostat faulty?
A. Have serviced by a Yamaha dealer.
Q. Is fuel system obstructed?
A. Check for pinched or kinked fuel line or
other obstructions in fuel system.
Q. Is there excess water in fuel filter cup?
A. Drain filter cup.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Engine power loss.
Q. Is propeller damaged?
A. Have propeller repaired or replaced.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is propeller pitch or diameter incorrect?
A. Install correct propeller to operate outboard at its recommended speed (r/min)
range.
Q. Is trim angle incorrect?
A. Adjust trim angle to achieve most efficient
operation.
Q. Is motor mounted at incorrect height on
transom?
A. Have motor adjusted to proper transom
height.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Q. Is ignition wiring damaged or poorly connected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or broken wires.
Q. Have electrical parts failed?
A. Have serviced by a Yamaha dealer.
Q. Is specified fuel not being used?
A. Replace fuel with specified type.
Q. Has alert system activated?
A. Find and correct cause of alert.
Q. Is specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Is boat bottom fouled with marine growth?
A. Clean boat bottom.
Q. Is thermostat faulty or clogged?
A. Have serviced by a Yamaha dealer.
Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
Q. Is air vent screw closed?
A. Open the air vent screw.
Q. Are weeds or other foreign matter tangled
94
Q. Is fuel pump damaged?
A. Have serviced by a Yamaha dealer.
6BG-9-39-1E0.book 95 ページ 2013年4月29日 月曜日 午前9時41分
Trouble Recovery
Q. Is fuel joint connection incorrect?
A. Connect correctly.
Q. Is heat range of spark plug incorrect?
A. Inspect spark plug and replace it with recommended type.
trailering. Damage could make the outboard motor unsafe to operate.
If the outboard motor hits an object in the water, follow the procedure below.
Q. Is high pressure fuel pump drive belt broken?
A. Have serviced by a Yamaha dealer.
Q. Is engine not responding properly to shift
lever position?
A. Have serviced by a Yamaha dealer.
Engine vibrates excessively.
Q. Is propeller damaged?
A. Have propeller repaired or replaced.
Q. Is propeller shaft damaged?
A. Have serviced by a Yamaha dealer.
Q. Are weeds or other foreign matter tangled
on propeller?
A. Remove and clean propeller.
Q. Is motor mounting bolt loose?
A. Tighten bolt.
1.
2.
3.
4.
Stop the engine immediately.
Check the control system and all components for damage. Also, check the boat
for damage.
Whether damage is found or not, return
to the nearest harbor slowly and carefully.
Have a Yamaha dealer check the outboard motor before operating it again.
EMU30683
Replacing fuse
If a fuse has blown, open the fuse holder and
remove the fuse with a fuse puller. Replace
it with a spare one of the proper amperage.
EWM00631
Q. Is steering pivot loose or damaged?
A. Tighten or have serviced by a Yamaha
dealer.
EMU29433
Temporary action in
emergency
EMU29441
Impact damage
WARNING
Substituting an incorrect fuse or a piece
of wire could allow excessive current
flow. This could cause electric system
damage and a fire hazard.
Consult your Yamaha dealer if the new fuse
immediately blows again.
EWM00870
WARNING
The outboard motor can be seriously
damaged by a collision while operating or
95
6BG-9-39-1E0.book 96 ページ 2013年4月29日 月曜日 午前9時41分
Trouble Recovery
3
trim and tilt unit , the engine can be tilted
manually.
1. Loosen the manual valve screw by turning it clockwise until it stops.
2
1
1
ZMU04095
1. Manual valve screw
2.
ZMU06422
EMU31594
Water separator-alert indicator blinks
while cruising
1. Fuse (20 A  2, 30 A)
2. Spare fuse (20 A  2, 30 A)
3. Fuse puller
EWM01500
WARNING
1
ZMU04337
1. Fuse puller
EMU29512
Power trim and tilt will not operate
If the engine cannot be tilted up or down with
the power trim and tilt because of a discharged battery or a failure with the power
96
Put the engine in the desired position,
then tighten the manual valve screw by
turning it counterclockwise.
Gasoline is highly flammable, and its vapors are flammable and explosive.
 Do not perform this procedure on a hot
or running engine. Allow the engine to
cool.
 There will be fuel in the fuel filter. Keep
away from sparks, cigarettes, flames or
other sources of ignition.
 This procedure will allow some fuel to
spill. Catch fuel in a rag. Wipe up any
spilled fuel immediately.
 The fuel filter must be reassembled
carefully with the O-ring, filter cup, and
hoses in place. Improper assembly or
replacement could result in a fuel leak,
which could result in a fire or explosion
hazard.
6BG-9-39-1E0.book 97 ページ 2013年4月29日 月曜日 午前9時41分
Trouble Recovery
If the water separator-alert indicator on the
Command Link Multifunction Tachometer
blinks, perform the following procedure.
1
ZMU06425
1. Water detection switch coupler
5.
1. Water separator-alert indicator
1.
2.
3.
Stop the engine.
Remove the top cowling.
Remove the holder.
Unscrew the filter cup from the filter
housing. NOTICE: Be careful not to
twist the water detection switch lead
when unscrewing the filter cup.
[ECM01960]
1
1
2
ZMU06426
ZMU06424
1. Holder
4.
Disconnect the water detection switch
coupler. NOTICE: Be careful not to get
any water on the water detection
switch coupler, otherwise a malfunction could occur. [ECM01950]
1. Filter cup
2. Water detection switch lead
6.
7.
8.
Drain the water in the filter cup by soaking it up with a rag.
Firmly screw the filter cup onto the filter
housing. NOTICE: Be careful not to
twist the water detection switch lead
when screwing the filter cup onto the
filter housing. [ECM01970]
Connect the water detection switch coupler securely until a click is heard.
97
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Trouble Recovery
EWM01022
WARNING
1


ZMU06427
1. Water detection switch coupler
9.
Fasten the water detection switch lead
with the holder.


1

ZMU06434
1. Holder
10. Install the top cowling.
11. Start the engine and make sure that the
water separator-alert indicator remains
off. Have a Yamaha dealer inspect the
outboard motor after returning to port.


EMU29542
Starter will not operate
If the starter mechanism does not operate
(the engine cannot be cranked with the starter), the engine can be started manually with
an emergency starter rope. However, the engine cannot be started manually if the battery
voltage is low. If the battery is discharged to
9 volts or below, the electric fuel pump will
not operate.
98

Use this procedure only in an emergency to return to the nearest port for repairs.
When the emergency starter rope is
used to start the engine, the start-ingear protection device does not operate. Make sure the remote control lever
is in neutral. Otherwise the boat could
unexpectedly start to move, which
could result in an accident.
Attach the engine shut-off cord to a secure place on your clothing, or your
arm or leg while operating the boat.
Do not attach the cord to clothing that
could tear loose. Do not route the cord
where it could become entangled, preventing it from functioning.
Avoid accidentally pulling the cord during normal operation. Loss of engine
power means the loss of most steering
control. Also, without engine power,
the boat could slow rapidly. This could
cause people and objects in the boat to
be thrown forward.
Make sure no one is standing behind
you when pulling the starter rope. It
could whip behind you and injure
someone.
An unguarded, rotating flywheel is very
dangerous. Keep loose clothing and
other objects away when starting the
engine. Use the emergency starter rope
only as instructed. Do not touch the flywheel or other moving parts when the
engine is running. Do not install the
starter mechanism or top cowling after
the engine is running.
Do not touch the ignition coil, spark
plug wire, spark plug cap, or other elec-
6BG-9-39-1E0.book 99 ページ 2013年4月29日 月曜日 午前9時41分
Trouble Recovery
trical components when starting or operating the motor. You could get an
electrical shock.
EMU44402
Emergency starting engine
1.
2.
Remove the top cowling.
Remove the flywheel cover after removing the bolt.
4.
Turn on the main switch.
OFF ON START
ZMU06429
3.
Prepare the engine for starting. For further information, see page 56. Be sure
the engine is in neutral and that the clip
is attached to the engine shut-off switch.
ZMU01906
5.
6.
Insert the knotted end of the emergency
starter rope into the notch in the flywheel
rotor and wind the rope around the flywheel several turns clockwise.
Give a strong pull straight out to crank
the engine. Repeat if necessary.
WARNING! Do not install the top
cowling when engine is running.
[EWM00621]
ZMU02334
ZMU06430
99
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Trouble Recovery
EMU33501
Treatment of submerged motor
If the outboard motor is submerged, immediately take it to a Yamaha dealer. Otherwise
some corrosion may begin almost immediately. NOTICE: Do not attempt to run the
outboard motor until it has been completely inspected. [ECM00401]
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Consumer information
EMU29836
YAMAHA FOUR-STROKE OUTBOARD MOTOR
THREE-YEAR LIMITED WARRANTY
Yamaha Motor Corporation, U.S.A. and Yamaha Motor Canada Ltd. (“Yamaha”) hereby warrant that new Yamaha four-stroke outboard
motors will be free from defects in material and workmanship for the period of time stated herein, subject to certain stated limitations.
PERIOD OF WARRANTY. Any new Yamaha four-stroke outboard motor purchased from an authorized Yamaha dealer in the
customer’s country of residence (United States or Canada) and registered with Yamaha will be warranted against defects in material or
workmanship, subject to exclusions noted herein, for the following applicable period determined by type of use:
• Pleasure use – three (3) years from the date of purchase.
• Commercial application – one (1) year from the date of purchase. A commercial application is defined as any use of the outboard
motor to generate income (excluding tournament fishing) or support business operations in any way during the warranty period,
without regard to the type or percentage of commercial use. Yamaha reserves the right to modify incorrect registration data and
reduce the warranty period to reflect commercial use.
• Yamaha peripheral equipment included with the motor, such as gauges, fuel tanks, and hoses, remote control boxes, and wiring
external from the motor unit, will be warranted for one (1) year from the date of purchase for either pleasure or commercial use.
Replacement parts used in warranty repairs will be warranted for the balance of the applicable warranty period.
The second and third year of warranty (if applicable) shall be limited to covering the cost of parts and labor for major components only.
The major components covered are:
Power Unit Section
• Power Head
• Intake Manifold
• Carburetor Assembly and its Related Components
• Fuel Injection System and its Related Components
• Fuel and Oil Pump Assemblies
• Ignition System (Standard and Microcomputer)
Lower Unit Section Bracket Section
• Exhaust System
• Bracket System
• Upper Casing
• Power Trim and Tilt Assembly
• Lower Unit Assembly
WARRANTY REGISTRATION. To be eligible for warranty coverage, the outboard motor must be registered with Yamaha in the country
of residence. Warranty registration can be accomplished by any authorized Yamaha Outboard Motor Dealer.
OBTAINING REPAIRS UNDER WARRANTY. During the period of warranty, any authorized Yamaha Outboard Motor Dealer in the
country of residence will, free of charge, repair or replace, at Yamaha’s option, any parts adjudged defective by Yamaha due to faulty
workmanship or material from the factory. All replaced parts will become the property of Yamaha. If the customer is temporarily using a
U.S.-registered outboard motor in Canada, or a Canada-registered outboard motor in the United States, and it needs warranty repairs,
the owner should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance. The local dealer will contact Yamaha on
the owner’s behalf so that needed repairs can be made as quickly as possible.
CUSTOMER’S RESPONSIBILITY. Under the terms of this warranty, the customer will be responsible for ensuring that the outboard
motor is properly operated, maintained, and stored as specified in the applicable Owner’s Manual. The owner of the outboard motor
shall give notice to an authorized Yamaha Outboard Motor Dealer of any and all apparent defects within ten (10) days of discovery and
make the motor available at that time for inspection and repairs at the dealer’s place of business.
ZMU07048
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Consumer information
GENERAL EXCLUSIONS FROM WARRANTY. This warranty will not cover the repair of damage if the damage is a result of abuse or
neglect of the product. Examples of abuse and neglect include, but are not limited to:
1. Racing or competition use, modification of original parts, abnormal strain.
2. Lack of proper maintenance and off season storage as described in the Owner’s Manual; installation of parts or accessories that are
not equivalent in design and quality to genuine Yamaha parts.
3. Operation of the motor at an rpm other than specified, use of lubricants or oils that are not suitable for outboard motor use.
4. Damage as a result of accidents, collisions, contact with foreign materials, or submersion.
5. Growth of marine organism on motor surfaces.
6. Normal deterioration.
SPECIFIC PARTS EXCLUDED FROM WARRANTY. Parts replaced due to normal wear or routine maintenance such as oil, spark
plugs, shear pins, propellers, hubs, fuel and oil filters, brushes for the starter motor and power tilt motor, water pump impellers, and
anodes, are not covered by warranty. Charges for removal of the motor from a boat and transporting the motor to and from an
authorized Yamaha Outboard Motor Dealer are excluded from warranty coverage.
Specific parts excluded from the second and third year of warranty (if applicable) are:
• Top and Bottom Cowling
• Electric Components (other than ignition system)
• Rubber Components (such as hoses, tubes, rubber seals, fittings, and clamps)
EMISSION CONTROL WARRANTY (United States only). Yamaha warrants to the ultimate purchaser and any subsequent owner, that
the emission control components on this engine are designed, built and equipped so as to conform at the time of sale with applicable
regulations under section 213 of the Clean Air Act and that this engine is covered against defects in materials and workmanship which
cause said engine to fail to conform with applicable exhaust emission regulations for five (5) years from the date of purchase or 175
hours of operation, whichever comes first. Evaporative components (e.g., hoses, fuel tank, fuel cap) are two (2) years from the date of
purchase. Some states have different emission control warranty provisions. As these vary from state to state, consult your Yamaha
dealer or contact Yamaha Customer Relations at 1-866-894-1626 for more information.
TRANSFER OF WARRANTY Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having
the motor inspected by an authorized Yamaha Outboard Motor Dealer and requesting the dealer to submit a change of registration to
Yamaha within ten (10) days of the transfer.
YAMAHA MAKES NO OTHER WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED. ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE OBLIGATIONS AND TIME LIMITS
STATED IN THIS WARRANTY ARE HEREBY DISCLAIMED BY YAMAHA AND EXCLUDED FROM THIS WARRANTY. SOME
STATES/PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE
LIMITATIONS MAY NOT APPLY TO YOU. ALSO EXCLUDED FROM THIS WARRANTY ARE ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES INCLUDING LOSS OF USE. SOME STATES/PROVINCES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM
STATE TO STATE/PROVINCE TO PROVINCE.
ZMU07047
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Consumer information
EMU29845
IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR
YAMAHA OUTSIDE THE U.S.A. OR CANADA
Welcome to the Yamaha Family!
Congratulations on the purchase of your new Yamaha products. Yamaha is committed to exceptional customer satisfaction and we want your ownership experience to
be a satisfying one. Please read the following warranty information to help ensure
satisfaction with your Yamaha.
This model was manufactured with specifications appropriate for sale and use in the
U.S.A. and Canada. Please note the following information:
1. As explained in the Limited Warranty Statement, the Yamaha warranty covers your
Yamaha when it is registered and used in your country of residence. If you are
temporarily using a U.S.-registered outboard motor in Canada, or a Canadaregistered outboard motor in the United States, and it needs warranty repairs, you
should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance.
The local dealer will contact Yamaha on the owner’s behalf so that needed repairs
can be made as quickly as possible.
2. If you need repairs while temporarily using your Yamaha in another country, contact
the local authorized Yamaha distributor for that country. Yamaha will work with that
distributor to make the needed repairs as quickly as possible. If you have to pay for a
repair that you believe your warranty would have covered at home, present all repair
orders, receipts, or other related documents to your local dealer when you return
home. He will be able to contact Yamaha on your behalf to see if any refund can be
provided.
TIP:
Your Yamaha model may not be sold in some countries. Therefore, a Yamaha dealer
outside the United States or Canada may not have all of the replacement parts or
technical information available to provide proper service. This may unavoidably delay
repairs. Thank you for your understanding should this happen.
3. If your Yamaha is registered or used primarily outside the United States or Canada,
the warranty printed in this manual does not apply to you. Contact the dealer who
sold the Yamaha marine power unit to you for customer support information.
ZMU05199
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6BG-9-39-1E0.book 1 ページ 2013年4月29日 月曜日 午前9時41分
EMU43021
For your best ownership experience, think Genuine Yamaha!
Genuine Yamaha Parts — Genuine Yamaha replacement parts are the exact same parts
as the ones originally equipped on your vehicle, providing you with the performance and durability you have come to expect. Why settle for aftermarket parts that may not provide full
confidence and satisfaction?
Genuine Yamaha Accessories — Yamaha only offers accessories that meet our high standards for quality and performance. Buy with confidence, knowing your Genuine Yamaha Accessories will fit right and perform right — right out of the box.
Yamalube — Take care of your Yamaha with legendary Yamalube oils, lubricants, and care
products. They’re formulated and approved by the toughest judges we know: the Yamaha
engineering teams that know your Yamaha from the inside out.
Genuine Yamaha Service Manuals — Get the same factory manual for your vehicle that
the technicians at your authorized Yamaha dealer use. Service manuals are available
through your Yamaha dealer or you can order them directly through yamahapubs.com (USA
only).
Genuine Yamaha products are available only from your Yamaha dealer.
Find out more at yamaha–motor.com
6BG-9-39-1E0.book 1 ページ 2013年4月29日 月曜日 午前9時41分
Printed in Japan
May 2013–0.6  1 !
Printed on recycled paper
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