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6N6-9-1H Hyoshi 08.2.21 9:42 ページ 1
115
OWNER’S MANUAL
q Read this manual carefully before operating this outboard motor.
U.S.A.Edition
LIT-18626-07-95
6N6-28199-1H
6N6-9-1H Hyoshi 08.2.21 9:42 ページ 2
EMU25062
ZMU01690
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.
Important manual information
EMU31283
To the owner
Thank you for choosing 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.
there is any question concerning this manual, please consult your Yamaha dealer.
TIP:
The 115TR 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.
EMU25111
115
OWNER’S MANUAL
©2008 by Yamaha Motor Corporation, USA
1st edition, April 2008
All rights reserved.
Any reprinting or unauthorized use without the written permission of
Yamaha Motor Corporation, USA is expressly prohibited.
Printed in Japan
P/N LIT-18626-07-95
: 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
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 ................. 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).............................................. 4
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..................... 14
Specifications of Battery.................. 14
Mounting battery ............................. 14
Multiple batteries ............................. 15
Propeller selection ........................ 15
Start-in-gear protection ................. 15
Engine oil requirements ................ 15
Fuel requirements ......................... 16
Gasoline .......................................... 16
Ring Free Fuel Additive................... 16
Muddy or acidic water ................... 17
Anti-fouling paint ........................... 17
Motor disposal requirements......... 17
Emission control information......... 17
North American models................... 17
Components .................................... 19
Components diagram.................... 19
Remote control box ......................... 19
Remote control lever ....................... 20
Neutral interlock trigger ................... 20
Neutral throttle lever ........................ 20
Choke switch ................................... 21
Throttle friction adjuster................... 21
Engine shut-off cord (lanyard) and clip................................................. 21
Choke knob for pull type ................. 22
Main switch ..................................... 22
Power trim and tilt switch on remote control ............................... 22
Power trim and tilt switch on bottom engine cowling .................. 23
Trim tab with anode......................... 23
Tilt support lever for power trim and tilt model................................. 24
Top cowling release lever ............... 24
Flushing device ............................... 25
Instruments and indicators............ 26
Digital tachometer ......................... 26
Trim meter ....................................... 26
Hour meter ...................................... 26
Oil level indicator (digital type) ........ 26
Overheat-alert indicator................... 27
Digital speedometer ...................... 27
Speedometer................................... 27
Table of contents
Fuel gauge ...................................... 28
Trip meter / Clock / Voltmeter ......... 28
Fuel level-alert indicator .................. 29
Low battery voltage-alert indicator ........................................ 29
Analog tachometer ........................ 29
Oil level indicators (three indicators 2) .................................. 29
Analog trim meter .......................... 30
Engine control system.................... 31
Alert system .................................. 31
Overheat alert ................................. 31
Oil level alert and oil filter clogging alert............................................... 31
Installation ....................................... 33
Installation ..................................... 33
Mounting the outboard motor .......... 33
Operation ......................................... 35
First-time operation ....................... 35
Breaking in engine .......................... 35
Getting to know your boat ............... 35
Checks before starting engine ...... 35
Fuel level......................................... 36
Remove cowling.............................. 36
Fuel system..................................... 36
Controls........................................... 36
Engine shut-off cord (lanyard)......... 37
Oil.................................................... 37
Engine ............................................. 37
Operation after a long period of storage.......................................... 37
Flushing device ............................... 37
Install cowling.................................. 38
Checking power trim and tilt system .......................................... 38
Battery............................................. 39
Filling fuel and engine oil............... 40
Filling fuel for models without a fuel joint ........................................ 40
Filling oil .......................................... 40
Oil level indicator operation............. 42
Operating engine........................... 43
Feeding fuel .................................... 43
Starting engine ................................ 43
Checks after starting engine ......... 45
Cooling water .................................. 45
Warming up engine....................... 45
Choke start models ......................... 45
Checks after engine warm-up ....... 45
Shifting ............................................ 45
Stop switches .................................. 45
Shifting .......................................... 46
Stopping boat................................ 47
Stopping engine ............................ 47
Procedure........................................ 47
Trimming outboard motor.............. 47
Adjusting trim angle (Power trim and tilt) .......................................... 48
Adjusting boat trim .......................... 48
Tilting up and down....................... 49
Procedure for tilting up (power trim and tilt models).............................. 50
Procedure for tilting down (power trim and tilt models)....................... 51
Shallow water................................ 51
Power trim and tilt models ............... 51
Cruising in other conditions........... 52
Maintenance .................................... 53
Transporting and storing outboard motor ........................... 53
Storing outboard motor ................... 53
Procedure........................................ 53
Lubrication (oil injection models) ..... 54
Cleaning and anticorrosion measures ...................................... 55
Flushing power unit ......................... 55
Cleaning the outboard motor........... 56
Checking painted surface of motor............................................. 56
Periodic maintenance ................... 56
Replacement parts .......................... 57
Maintenance interval guidelines ...... 57
Maintenance chart 1........................ 58
Maintenance chart 2........................ 60
Greasing.......................................... 61
Cleaning and adjusting spark plug ............................................... 61
Checking fuel filter........................... 62
Inspecting idling speed.................... 62
Table of contents
Checking water in engine oil tank ... 63
Checking wiring and connectors ..... 63
Checking propeller .......................... 63
Removing propeller ......................... 64
Installing propeller ........................... 64
Changing gear oil ............................ 65
Inspecting and replacing anode(s)........................................ 66
Checking battery (for electric start models) ......................................... 67
Connecting the battery .................... 67
Disconnecting the battery ............... 68
Trouble Recovery ............................ 69
Troubleshooting ............................ 69
Temporary action in emergency..... 72
Impact damage ............................... 72
Replacing fuse ................................ 72
Power trim and tilt will not operate.......................................... 73
Starter will not operate .................... 73
Emergency starting engine ............. 74
Engine fails to operate .................. 75
Low oil level alert activates ............. 75
Top cowling does not unlock ......... 76
Treatment of submerged motor...... 76
Consumer information.................... 77
Important warranty information for U.S.A. and Canada ................ 77
YAMAHA MOTOR
CORPORATION, U.S.A.
OUTBOARD MOTOR TWO
YEAR LIMITED WARRANTY ...... 79
IMPORTANT WARRANTY
INFORMATION IF YOU USE
YOUR YAMAHA OUTSIDE
THE USA OR CANADA .............. 82
Safety information
EMU33622
Outboard motor safety
Observe these precautions at all times.
EMU36500
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.
● Shut off 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 motor 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 43 to reduce the risk of fire and explosion.
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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.
EMU33720
Personal flotation devices
Have an approved personal flotation device
(PFD) on board for every occupant. Yamaha recommends that you must wear a PFD whenever boating. At a minimum, children and non-swimmers should always wear
PFDs, and everyone should wear PFDs when there are potentially hazardous boating conditions.
EMU33730
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 shut off the motor.
Stay away from swimming areas. Swimmers can be hard to see.
The propeller can keep moving even when the motor is in neutral. Shut off the engine when a person is in the water near you.
EMU33750
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 han-
Safety information dling and lead to an accident, capsizing or swamping.
EMU33771
Avoid collisions
Scan constantly for people, objects, and other boats. Be alert for conditions that limit your visibility or block your vision of others.
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 un-
● derstand 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.
EMU33800
Accident reporting
Boat operators are required by law to file a
Boating Accident Report with their state 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.
EMU33870
Boat education and training
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,
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Safety information go to boatus.org.
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Passenger training
Make sure at least one other passenger is trained to operate the boat in the event of an emergency.
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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.
EMU33680
Boating organizations
The following organizations provide boating safety training and information about boating safety and laws.
United States Power Squadrons
1-888-FOR-USPS (1-888-367-8777) www.usps.org
Boat Owners Association of The United
States
1-800-336-BOAT (1-800-336-2628) www.boatus.com
National Association of State Boating
Law Administrators (NASBLA)
1500 Leestown Road, Suite 330
Lexington, KY 4051 859-225-9497
859-225-9497 www.nasbla.org
National Marine Manufacturers Association (NMMA)
200 East Randolph Drive
Suite 5100
Chicago, IL 606001 www.nmma.org
Marine Retailers Association of America
155 N. Michigan Ave. Chicago,
IL 60601 www.mraa.com
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
Boating Safety Hotline: 1-800-368-5647 www.uscgboating.org
EMU33690
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 USA: 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.
Safety information
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. 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 Give-
Way vessels). Both you and the meeting vessel must alter course to avoid each other.
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
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.
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Safety information
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.
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
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 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.
Safety information
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Safety information
8
ZMU01708
General information
EMU25171
Identification numbers record
EMU25183
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. Outboard motor serial number location
EMU25190
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 reference in case you need a new key.
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General information
EMU33520
Read manuals and labels
Before operating or working on this 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.
EMU33831
Warning labels
If these labels are damaged or missing, contact your Yamaha dealer for replacements.
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3
ZMU06196
10
1
3
2
General information
ZMU05670
11
General information
EMU33843
Symbols
The following symbols mean as follows.
Notice/Warning
Electrical hazard
Read Owner’s Manual
ZMU05696
ZMU05666
Remote control lever/gear shift lever operating direction, dual direction
ZMU05664
Hazard caused by continuous rotation
Engine start/ Engine cranking
ZMU05667
ZMU05668
ZMU05665
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Specifications and requirements
EMU31480
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.
EMU2821C
Dimension:
Overall length:
808 mm (31.8 in)
Overall width:
582 mm (22.9 in)
Overall height L:
1472 mm (58.0 in)
Transom height L:
516 mm (20.3 in)
Weight (without propeller) L:
163.0 kg (359 lb)
Performance:
Full throttle operating range:
4500–5500 r/min
Maximum output:
84.6 kW@5000 r/min
(115 HP@5000 r/min)
Idling speed (in neutral):
750 ± 50 r/min
Engine:
Type:
2-stroke V
Displacement:
1730.0 cm
3
Bore × stroke:
90.0 × 68.0 mm (3.54 × 2.68 in)
Ignition system:
CDI
Spark plug with resistor (NGK):
BR8HS-10
Spark plug gap:
0.9–1.0 mm (0.035–0.039 in)
Control system:
Remote control
Starting system:
Electric
Starting carburetion system:
Choke valve
Min. cold cranking amps (CCA/SAE):
380.0 A
Min. marine cranking amps (MCA/ABYC):
502.0 A
Min. reserve capacity (RC/SAE):
124 minutes
Maximum generator output:
20.0 A
Drive unit:
Gear positions:
Forward-neutral-reverse
Gear ratio:
2.00 (26/13)
Trim and tilt system:
Power trim and tilt
Propeller mark:
K
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. pump octane:
86
Recommended engine oil:
YAMALUBE 2-stroke outboard motor oil
Lubrication:
Oil injection
Engine oil tank capacity:
0.9 L (0.95 US qt, 0.79 Imp.qt)
Remote oil tank capacity:
10.5 L (11.10 US qt, 9.24 Imp.qt)
Recommended gear oil:
Hypoid gear oil SAE#90
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Specifications and requirements
Gear oil quantity:
0.760 L (0.803 US qt, 0.669 Imp.qt)
Tightening torque for engine:
Spark plug:
25.0 Nm (2.55 kgf-m, 18.4 ft-lb)
Propeller nut:
55.0 Nm (5.61 kgf-m, 40.6 ft-lb)
EMU33553
Installation requirements
EMU33563
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 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
33.
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 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
EMU25713
Specifications of Battery
Use a fully charged battery that meets the following specifications. The engine cannot be started if battery voltage is too low.
Minimum cold cranking amps
(CCA/SAE):
380.0 A
Minimum marine cranking amps
(MCA/ABYC):
502.0 A
Minimum 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
14
Specifications and requirements 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.
[EWM01820]
EMU36300
Multiple batteries
To connect multiple batteries, such as for multiple engine configurations or for an accessory battery, consult your Yamaha dealer about battery selection and correct wiring.
EMU34191
Propeller selection
Next to selecting an outboard, choosing 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 chosen 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, chose 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, chose 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.
For instructions on propeller removal and installation, see page 63.
x -
1 2 3
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
ZMU04608
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.
EMU25661
Engine oil requirements
Use Yamalube 2-M outboard oil. If Yamalube 2-M is not available, use only another outboard motor manufacturer’s factorybrand oil with TC-W3 rating.
Recommended engine oil:
YAMALUBE 2 STROKE OUTBOARD
OIL
ECM01290
NOTICE
Serious engine damage can result from the use of lower quality oil, including some commonly available oil brands with
“TC-W3” on their label. To avoid the risk, use only Yamalube 2-M or, if necessary,
15
Specifications and requirements another outboard motor manufacturer’s factory-brand TC-W3 oil.
EMU36360
Fuel requirements
EMU36780
Gasoline
Use a good quality gasoline that meets the minimum octane rating. If knocking or pinging occurs, use a different brand of gasoline or premium unleaded fuel. Yamaha recomends that you use alcohol-free (see
Gasohol) gasoline whenever possible.
Recommended gasoline:
Regular unleaded gasoline with a minimum Octane rating of 86 (Pump Octane Number) = (R+M)/2
ECM01980
NOTICE
● Do not use leaded gasoline. Leaded gasoline can seriously damage the en-
● gine.
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.
Gasohol
There are two types of gasohol: gasohol containing ethanol (E10) and that containing methanol. Ethanol can be used if the ethanol content does not exceed 10% and the fuel meets the minimum octane ratings. E85 is a fuel containing 85% ethanol and must not be used in your outboard motor. All ethanol blends containing more than 10% ethanol can cause fuel system damage or cause engine starting and running problems. Yamaha does not recommend gasohol containing methanol because it can cause fuel system damage or engine performance problems.
It is recommended that you install a waterseparating marine fuel filter assembly (10 micron minimum) between your boat’s fuel tank and outboard motor when using ethanol. Ethanol is known to allow moisture to be absorbed into boat fuel tanks and systems.
Moisture in the fuel can cause corrosion of metallic fuel system components, starting and running complaints and require additional fuel system maintenance.
EMU27270
Ring Free Fuel Additive
Gasoline is a precise blend of many different substances, each chosen to give certain characteristics. Gasoline blends have been changing in recent years in response to concerns about pollution and resulting emissions regulations. One of the most obvious changes has been the elimination of lead from most fuels.
As gasoline has changed, the amount of additives such as aromatics and oxygenates has increased. These additives are important for the engines in passenger cars, but they can have detrimental effects in marine engines, because of increased deposits in the combustion chamber. When enough deposits collect, piston rings begin sticking.
Performance drops and engine wear increases dramatically.
While many additives available may reduce deposits, Yamaha recommends the use of
Ring Free Fuel Additive , available from your Yamaha dealer. Ring Free Fuel Additive has repeatedly proven its ability to clean combustion deposits from inside the engine, notably the critical piston-ring-land area, and fuel system components. Follow product labeling for use instructions.
16
Specifications and requirements
EMU36880
Muddy or acidic water
Yamaha strongly recommends that you have your dealer install the optional chromiumplated water pump kit if you use the outboard motor in muddy or acidic water conditions.
However, depending on the model it might not be required.
EMU36330
Anti-fouling paint
A clean hull improves boat performance. The boat bottom should be kept as clean of marine growth as possible. If necessary, the boat bottom can be coated with an anti-fouling paint approved for your area to inhibit marine growth.
Do not use anti-fouling paint which includes copper or graphite. These paints can cause more rapid engine corrosion.
EMU30390
Approval label of emission control certificate
This label is attached to the bottom cowling.
Existing Technology; N/A
1
1. Approval label location
ZMU04619
EMISSION CONTROL INFORMATION
ENGINE FAMILY :
THIS ENGINE CONFORMS TO 2001 U.S. EPA REGULATIONS FOR MARINE SI ENGINES.
REFER TO THE OWNERS MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
FELs :
SPARK PLUG : g/kW-hr IDLE SPEED :
SPARK PLUG GAP (mm) : rpm IN NEUTRAL
DISPLACEMENT :
ADVERTISED POWER : cm kW
3 FUEL : GASOLINE
VALVE LASH (mm) : IN : N/A EX : N/A
EMU36340
Motor disposal requirements
Never illegally discard (dump) the motor
Yamaha recommends consulting the dealer about discarding the motor.
EMU25221
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.
ZMU05230
EMU25262
Manufactured date label
This label is attached to the clamp bracket or the swivel bracket.
17
Specifications and requirements
1
1. Manufactured date label location
ZMU04618
18
Components
EMU2579H
Components diagram
TIP:
* May not be exactly as shown; also may not be included as standard equipment on all models.
115
12
11
10
9
8
1. Top cowling
2. Power trim and tilt switch
3. Flushing device
4. Tilt support lever
5. Anti-cavitation plate
6. Trim tab (anode)
7. Propeller*
8. Cooling water inlet
9. Anode
10. Clamp bracket
11. Top cowling release lever
12. Choke knob
13. Cooling water pilot hole
14. Remote control box (side mount type)*
15. Digital tachometer*
1
2
3
4
5
14
6
17
7
18
15
19
16
13
ZMU04764
16. Digital speedometer*
17. Tachometer*
18. Trim meter*
19. Remote oil tank*
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.
19
Components
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
2. Remote control lever
3. Neutral interlock trigger
4. Neutral throttle lever
5. Main switch / choke switch
6. Engine stop lanyard switch
7. Throttle friction adjuster
1. Neutral interlock trigger
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.
EMU26211
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.
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.
1. Neutral “ ”
2. Forward “ ”
3. Reverse “ ”
4. Shift
5. Fully closed
20
Components resistance, it could be difficult to move the remote control lever or throttle grip, which could result in an accident.
[EWM00032]
To decrease resistance, turn the adjuster counterclockwise.
1. Fully open
2. Fully closed
EMU26221
Choke switch
To activate the choke system, press in the main switch while the key is turned to the
“ ” (on) or “ ” (start) position. The choke system will then supply the rich fuel mixture required to start the engine. When the key is released, the choke will switch off automatically.
ZMU03160
EMU25973
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. WARNING! Do not overtighten the friction adjuster. If there is too much
When constant speed is desired, tighten the adjuster to maintain the desired throttle setting.
EMU25993
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 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
21
Components thrown forward.
[EWM00122]
● “ ” (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
EMU26011
Choke knob for pull type
To supply the engine with the rich fuel mixture required to start, pull out this knob.
EMU32052
Power trim and tilt switch on remote control
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 47 and 49.
ZMU03903
EMU26090
Main 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.
22
Components
EMU26153
Power trim and tilt switch on bottom engine cowling
The power trim and tilt switch is located on the side of the bottom engine cowling. 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 page 49.
EWM01030
WARNING
Use the power trim and tilt switch located on the bottom engine 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 operator, increasing the risk of collision with another boat or an obstacle.
placed 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
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.
1 B
3
2
A
UP
ZMU02525
DN
ZMU03517
EMU26244
Trim tab with anode
EWM00840
WARNING
An improperly adjusted trim tab could cause difficult steering. Always test run after the trim tab has been installed or re-
1. Trim tab
2. Bolt
3. Cap
23
Components
EMU26400
Top cowling release lever
The top cowling can be removed by operating the cowling release lever. Pulling the front lever unlocks the top cowling for removal.
A
B
ZMU01863
Bolt tightening torque:
42.0 Nm (4.2 kgf-m, 31 ft-lb)
EMU26341
Tilt support lever for power trim and tilt model
To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp bracket.
1
ZMU03518
When installing the top cowling:
1.
Set the top cowling straight down onto the engine, being careful to avoid catching spark plug wires or other wires.
2.
Align the three cowling hooks with the locks on the bottom cowling.
3.
Press down on the top of the cowling at the front and both sides of the back until the three locks click.
ZMU03979
1. Tilt support lever
ECM00660
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.
ZMU03519
4.
To make sure the cowling is locked properly push the cowling from each side. If it lifts, repeat step 3.
ECM00070
NOTICE
● Make sure the cowling lock connection
24
cable is operating correctly before reinstalling the top cowling.
● When the release lever is operated, both the front and rear cowling hooks should be released at the same time. If not, adjust the rear clamp cable adjust-
● ers.
Make sure the cable operates smoothly and is free of corrosion.
● Check that the cable is properly secured in the holder.
● When reinstalling the cowling, ensure that both the front and rear locks have operated properly. If the cowling has not been locked properly, some parts may be damaged by the top cowling shaking during operation.
EMU26460
Flushing device
This device is used to clean the cooling water passages of the motor using a garden hose and tap water.
TIP:
For details on usage, see page 55.
Components
1. Flushing device
1
ZMU04139
25
Instruments and indicators
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
3
5
6
1. Tachometer
2. Trim meter
3. Hour meter
4. Oil level indicator
5. Overheat-alert indicator
6. Set button
7. Mode button
7
4
2
ZMU01891
ZMU01869
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.
TIP:
The water separator and engine trouble-alert indicators only operate when the engine is equipped with the appropriate functions.
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.
ZMU01870
“
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.
EMU26551
Oil level indicator (digital type)
This indicator shows the engine oil level. If the oil level falls below the lower limit, the
26
Instruments and indicators alert indicator will start to blink. For further information, see page 31.
ECM00030
NOTICE
Do not operate the engine without oil. Serious engine damage will occur.
EMU26602
Digital speedometer
This gauge shows the boat speed and other information.
1. Oil level indicator
1
ZMU01867
1. Speedometer
2. Fuel gauge
3. Trip meter/clock/voltmeter
4. Alert indicator(s)
EMU26583
Overheat-alert indicator
If the engine temperature rises too high, the alert indicator will start to blink. For further information on reading the indicator, see page
31.
ECM00052
NOTICE
Do not continue to run the engine if the overheat-alert indicator is on. Serious engine damage will occur.
All segments of the display will light momentarily after the main switch is turned on and will return to normal thereafter.
EMU36061
Speedometer
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
ZMU01868
1. Cap
2. Selector switch (for speed unit)
3. Selector switch (for fuel sensor)
27
Instruments and indicators
EMU26712
Fuel gauge
Eight segments indicate the fuel level. When all segments are showing, the fuel tank is full.
(set) and “ time.
” (mode) buttons at the same
The trip distance is kept in memory by battery power. The stored data will be lost if the battery is disconnected.
ZMU01745
The fuel level reading can be inaccurate due to by 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 “ meter), “ ” (clock), or “
” (trip
” (voltmeter).
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 “ ”
EMU26701
Clock
To set the clock:
1.
Be sure the gauge is in the “ mode.
” (time)
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.
The clock operates on battery power. Dis-
28
Instruments and indicators connecting the battery will stop the clock.
Reset the clock after connecting the battery.
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
EMU26471
Analog tachometer
This gauge shows the engine speed and has the following functions.
1
2
1. Fuel level-alert segment ZMU04577
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.
1. Tachometer
2. Oil level indicator
EMU26541
Oil level indicators (three indicators
2)
The indicators on the gauge show the status of the oil level. For details on how to read the indicators, see page 42.
ECM00030
NOTICE
Do not operate the engine without oil. Serious engine damage will occur.
29
Instruments and indicators
1
ZMU04580
1. Oil level indicators
EMU26611
Analog trim meter
This gauge shows the trim angle of your outboard motor.
ZMU04581
Memorize the trim angles that work best for your boat under different conditions. Adjust the trim angle to the desired setting with the power trim and tilt switch.
30
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.
EMU2681A
Overheat alert
This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate.
● The engine speed will automatically decrease to about 2000 r/min.
● The overheat-alert indicator will light or blink.
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.
ZMU02630
ZMU01757
ZMU04766
● The buzzer will sound (if equipped on the tiller handle, remote control box, or main switch panel).
EMU26848
Oil level alert and oil filter clogging alert
Oil injection models
This engine has an oil level alert system. If the oil level falls below the lower limit, the alert system will activate.
Activation of alert device
● Engine speed will automatically decrease to about 2000 r/min.
● The oil level-alert indicator will light or blink.
31
Engine control system nally oil filter clogging.
ZMU03942
1. Oil filter
ZMU04586
● The buzzer will sound (if equipped on the tiller handle, remote control box, or main switch panel).
1
1. Oil filter
ZMU03025
If the alert system has been activated, stop the engine and check for the cause.
TIP:
The alert for oil filter clogging is similar to the alerts for low oil level and overheating. To make troubleshooting easier, check for engine overheating first, then oil level, and fi-
32
1
ZMU03906
ZMU01952
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
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.
1. Center line (keel line)
1
ZMU01873
EMU26931
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.
33
Installation
ZMU01762
ECM01630
NOTICE
● During water testing, check the buoyancy of the boat, at rest, with its maximum load. Check that the static water level on the exhaust housing is low enough to prevent water entry into the power head when water rises due to waves when the outboard is not running.
● 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 motor is operated continuously in the presence of airborne water spray, enough water could enter the engine through the intake opening on the cowling to cause severe engine damage. Eliminate the cause of the airborne water spray.
34
Operation
EMU36380
First-time operation
EMU27020
Breaking in engine
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.
ECM00140
NOTICE
● Failure to follow the break-in procedure could result in reduced engine life or
● even severe engine damage.
Premix fuel must be used during breakin in addition to oil in the oil injection system.
EMU27060
Gasoline and engine oil mixing chart
(50:1)
2. : Engine oil
ECM00150
NOTICE
Be sure to mix gasoline and oil completely, otherwise the engine may be damaged.
EMU30311
Procedure for oil injection models
Run the engine under load (in gear with a propeller installed) for 10 hours as follows.
1.
First 10 minutes:
Run the engine at the lowest possible speed. A fast idle in neutral is best.
2.
Next 50 minutes:
Do not exceed half throttle (approximately 3000 r/min). Vary engine speed occasionally. If you have an easy-planing boat, accelerate at full throttle onto plane, then immediately reduce the throttle to 3000 r/min or less.
3.
Next two hours:
Accelerate at full throttle onto plane, then reduce engine speed to three-quarter throttle (approximately 4000 r/min).
Vary engine speed occasionally. Run at full throttle for one minute, then allow about 10 minutes of operation at threequarter throttle or less to let the engine cool.
4.
Remaining seven hours:
Run the engine at any speed. However, avoid operating at full throttle for more than 5 minutes at a time.
5.
After the first 10 hours:
Operate the engine normally. Use only straight gasoline in the fuel tank. The
Yamaha oil injection system provides proper lubrication for normal operation.
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 47).
EMU36412
Checks before starting engine
EWM01920
WARNING
If any item in the checks before starting engine is not working properly, have it inspected and repaired before operating the outboard motor. Otherwise an acci-
35
Operation dent could occur.
ECM00120
NOTICE
Do not start the engine out of water. Overheating and serious engine damage can occur.
EMU37150
Fuel level
Be sure you have plenty of fuel for your trip.
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 40.
EMU36570
Remove cowling
For the following checks, remove the top cowling from the engine. To remove the engine top cowling, release the lock lever and lift off the cowling.
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.
EMU36450
Check for fuel leaks
● Check under top cowling and in the boat for fuel leaks or gasoline fumes.
● Check fuel line connections to be sure they are tight.
● Check fuel lines for cracks, swelling, or other damage.
EMU37320
Check the fuel filter
Check that the fuel filter is clean and free of water. If any water 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.
ZMU06101
EMU36440
Fuel system
EWM00060
WARNING
Gasoline and its vapors are highly flammable and explosive. Keep away from sparks, cigarettes, flames, or other
ZMU04151
EMU36460
Controls
● 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.
36
Operation
● Operate the throttle levers several times to 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 under the engine cowling.
EMU36481
Engine shut-off cord (lanyard)
Inspect the engine shut-off cord for damage, such as cuts, breaks, and wear.
lows:
1.
Use a 50:1 gasoline-oil mixture to start the engine.
2.
Start the engine. Leave it idling.
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]
3.
Watch for oil flowing through the oil feed pipes. After any air in the oil lines has been expelled, the oil injection system should supply oil normally. If no oil is flowing after 10 minutes of idling, consult your Yamaha dealer.
1. Cord
2. Clip
3. Engine shut-off switch
ZMU04141
EMU27120
Oil
● Check to be sure you have plenty of oil for your trip.
EMU27151
Engine
● Check the engine and engine mounting.
● Look for loose or damaged fasteners.
● Check the propeller for damage.
● Check for oil leaks.
EMU27171
Operation after a long period of storage
When operating the engine after a long period (12 months) of storage, proceed as fol-
ECM00130
NOTICE
Be sure to take the above steps when operating the engine after a long period of storage. Otherwise engine seizure could occur.
EMU36490
Flushing device
Check that flushing device’s garden hose connector is securely screwed on to the fitting on the bottom cowling. NOTICE: If the flushing device is not properly connected, cooling water can leak out and the engine can overheat during operation.
[ECM01800]
37
Operation the cowling can damage the engine, or the cowling can blow off at high speeds.
[ECM01990]
1
ZMU04139
1. Flushing device
ZMU06126
EMU37520
Install cowling
1.
Be sure that a cowling lock lever is released.
2.
Be sure that the rubber seal is seated all the way around the engine.
3.
Set the top cowling straight down onto the engine, being careful to avoid catching spark plug wires or other wires.
4.
Align the three cowling hooks with the locks on the bottom cowling.
5.
Press down on the top of the cowling at the front and both sides of the back until the three locks click.
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.
ZMU04679
ZMU03519
6.
Check to be sure it fits properly in the rubber seal.
7.
Move the lever to lock the cowling as shown. NOTICE: If the cowling is not installed correctly, water spray under
EMU29158
Checking power trim and tilt system
EWM01930
WARNING
● 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.
● Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted.
● Be sure no one is near the outboard motor before performing this check.
38
1.
Check the power trim and tilt unit for any sign of oil leaks.
2.
Operate each of the power trim and tilt switches on the remote control and engine bottom cowling to check that all switches work.
3.
Tilt the outboard motor up and check that the tilt rod and trim rods are extended completely.
Operation rods have retracted completely into the cylinders.
1
ZMU04156
7.
Activate the trim-up switch until the tilt rod is fully extended. Unlock the tilt support lever.
2
ZMU03458
1. Tilt rod
2. Trim rods
4.
Use the tilt support lever to lock the motor in the up position. Operate the tilt down switch briefly so the motor is supported by the tilt support lever.
1. Tilt support lever
1
ZMU04155
5.
Check that the tilt rod and trim rods are free of corrosion or other flaws.
6.
Activate the tilt-down switch until the trim
ZMU02635
8.
Tilt the outboard motor down. Check that the tilt rod and trim rods operate smoothly.
EMU36581
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.
39
Operation
EMU27234
Filling fuel and engine oil
EMU30321
Filling fuel for models without a fuel joint
EWM01830
WARNING
● Gasoline and its vapors are highly flammable 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.
1.
Stop the engine.
2.
Be sure you are in a well-ventilated outdoor area, either securely moored or trailered.
3.
Make sure no one is in the boat.
4.
Do not smoke and keep away from sparks, flames, static electric discharge, or other sources of ignition.
5.
If you use a portable container to store and dispense fuel, only use a locally approved GASOLINE container.
6.
Touch the fuel nozzle to the filler opening or funnel to help prevent electrostatic sparks.
7.
Fill the fuel tank, but do not overfill. Fuel can expand and overflow if the temperature increases.
8.
Tighten the filler cap securely.
9.
Wipe up any spilled gasoline immediately with dry rags. Dispose rags properly.
According to local laws or regulations.
EMU27282
Filling oil
This engine uses the Yamaha oil injection system, which provides superior lubrication by ensuring the proper oil ratio for all operating conditions. No fuel premixing is needed.
Simply pour gasoline into the fuel tank and oil into the oil tank. Convenient indicator segments indicate the status of the oil supply.
For details on reading the indicator segments, see page 42.
EWM00530
WARNING
Do not add gasoline into the oil tank. Fire or explosion could result.
Engine oil tank capacity:
0.9 L (0.95 US qt, 0.79 Imp.qt)
To fill the engine oil tank, proceed as follows:
1.
Pour engine oil into the remote oil tank.
ZMU04142
TIP:
The oil level lines on the remote oil tank indicate the amount of additional oil that can be added to the tank. The top oil level line indicates approximately 1.9 L (0.5 US gal, 0.4
Imp gal) can be added, and the bottom oil level line indicates approximately 3.8 L (1 US gal, 0.8 Imp gal) can be added.
2.
Turn on the main switch. The Yamaha
40
oil injection system will automatically feed oil from the remote oil tank to the engine oil tank.
OFF ON START
ZMU04143
3.
After the engine oil tank has filled, turn off the main switch to cancel the oil level alert.
OFF ON START
ZMU04144
4.
Operate the engine normally.
ECM00570
NOTICE
When the engine is operated for the first time or stored for a period of time, a minimum of 5 liters (5.3 US qt, 4.4 Imp qt) of oil should be kept in the remote oil tank.
Otherwise the oil-feed pump chamber will not be filled with oil, and no oil will be supplied.
Operation
41
Operation
EMU27321
Oil level indicator operation
The various functions of the oil level system are as follows:
EMU27383
Oil level indicator
Electric start models
Oil level-alert indicator
(digital tachometer)
Oil level-alert indicator (analog tachometer)
Engine oil tank
Remote oil tank
Green more than 300 cm
3
(0.32
US qt, 0.26
Imp qt)
Remarks more than
1500 cm
3
(1.6
US qt, 1.31
Imp qt) ● No refilling necessary.
Yellow more than 300 cm
3
(0.32
US qt, 0.26
Imp qt)
1500 cm
3
(1.6
US qt, 1.31
Imp qt) or less
● Add oil; see page 40.
Red–Yellow–
Green
Red
300 cm
3
(0.32
US qt, 0.26
Imp qt) or less more than
1500 cm
3
(1.6
US qt, 1.31
Imp qt)
300 cm
3
(0.32
US qt, 0.26
Imp qt) or less
1500 cm
3
(1.6
US qt, 1.31
Imp qt) or less
●
●
●
Check oil filter for clogging.
Check battery cable connection. Buzzer will sound.
Engine speed is automatically reduced to about 2000 r/min.
●
●
●
●
Oil has not been added.
Buzzer will sound.
Engine speed is automatically reduced to about 2000 r/min.
Buzzer sounds in remote control box and engine speed is limited to about 2000 r/min to help conserve oil.
42
Operation
EMU27451
Operating engine
EMU27482
Feeding fuel
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 loosen-
● ing 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.
1.
If there is an air vent screw on the fuel tank cap, loosen it 2 or 3 turns.
2.
If there is a fuel joint or a fuel cock on the boat, firmly connect the fuel line to the joint or open the fuel cock.
3.
Squeeze the primer pump, with the arrow pointing up, until you feel it become firm.
ZMU02025
EMU27492
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.
EMU27645
Electric start / 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.
1.
Place the remote control lever in neutral.
43
Operation using the neutral throttle lever or free accelerator. You may need to change the throttle opening slightly depending on engine temperature. After the engine starts, return the throttle to the original position.
N
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.
3.
Turn the main switch to “ ” (on).
OFF
ON
ZMU02314
TIP:
● On remote controls equipped with a neutral throttle lever, a good starting point is to lift the lever just until you feel resistance, then lift slightly more.
● The neutral throttle lever or free accelerator can only be used when the remote control lever is in neutral.
5.
Press in and hold the main switch to operate the remote choke system. The remote choke switch automatically returns to its normal position when you release your hand. Therefore keep the switch pressed in.
TIP:
● It is not necessary to use the choke when starting a warm engine.
● Push in the main switch fully, or the remote choke system will not operate.
6.
Turn the main switch to “ ” (start), and hold it for a maximum of 5 seconds.
ZMU01880
4.
Open the throttle slightly without shifting
44
OFF
ON
START
Operation 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.
ZMU03262
7.
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]
EMU36510
Checks after starting engine
EMU36520
Cooling water
Check for a steady flow of water from the cooling water pilot hole. A continuous flow of water from the pilot hole shows that the water pump is pumping water through the cooling passages. If the cooling passages are frozen, it may take a while for water to start flowing out of the pilot hole.
ECM01810
NOTICE
If water is not flowing out of the pilot hole at all times while the engine is running,
ZMU03908
Check that no water leaks from the joints between the exhaust cover, cylinder head, and body cylinder.
EMU27670
Warming up engine
EMU27683
Choke start models
After starting the engine, allow it to idle for 3 minutes to warm up. Failure to do so will shorten engine life. Gradually return the choke knob to its home position as the engine warms up.
EMU36530
Checks after engine warm-up
EMU36540
Shifting
While tightly moored, and without applying throttle, confirm that the engine shifts smoothly into forward and reverse, and back to neutral.
EMU31721
Stop switches
● Confirm that turning the main switch to the
“ ” (off) position stops the engine.
45
Operation
● 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.
EMU31730
Shifting
EWM00180
WARNING
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).
To shift from in gear (forward/reverse) to neutral
1.
Close the throttle so that the engine slows to idle speed.
2.
After the engine is at idle speed in gear move the remote control lever firmly and crisply into the neutral position.
1. Neutral interlock trigger
2.
Move the remote control lever firmly and crisply forward (for forward gear) or backward (for reverse gear) about 35° (a detent can felt).
46
Operation
EMU31742
Stopping boat
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.
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.
EMU27853
Procedure
1.
Turn the main switch to “ ” (off).
the fuel line or close the fuel cock if there is a fuel joint or a fuel cock on the boat.
3.
Tighten the air vent screw on the fuel tank cap (if equipped).
4.
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.
2.
After stopping the engine, disconnect
47
Operation 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
1. Trim operating angle
ZMU04145
1 UP
EMU27884
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
1. Power trim and tilt switch
DN
ZMU03522
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.
EMU27911
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 tenden-
48
Operation cy to steer to one side or the other. Compensate for this as you steer. The trim tab can also be adjusted to help offset this effect.
When the bow of the boat is down, it is easier to accelerate from a standing start onto plane.
also makes the boat unstable. Resistance at the bow is greatly increased, heightening the danger of “bow steering” and making operation difficult and dangerous.
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.
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
TIP:
Depending on the type of boat, the outboard motor trim angle may have little effect on the trim of the boat when operating.
EMU27934
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.
EWM00221
WARNING
Be sure all people are clear of the outboard motor when tilting up and down,
Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted.
EWM00250
WARNING
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
49
Operation few minutes. Otherwise fuel may leak.
ECM00241
NOTICE
● Before tilting the outboard motor, stop the engine by following the procedure on page 47. 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.
EMU32723
Procedure for tilting up (power trim and tilt models)
1.
Place the remote control lever in neutral.
N
ZMU03196
2.
Press the power trim and tilt switch “ ”
(up) until the outboard motor has tilted up completely.
UP
ZMU04146
3.
Pull the tilt support lever toward you 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 power 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 53.
[ECM01641]
ZMU03432
4.
Models equipped with trim rods: Once the outboard motor is supported with the tilt support lever, press the power trim
50
and tilt switch “ ” (down) to retract the trim rods. NOTICE: Be sure to retract the trim rods completely during mooring. This protects the rods from marine growth and corrosion which could damage the power trim and tilt mechanism.
[ECM00251]
DN
UP
DN
Operation
ZMU01936
ZMU03452
EMU33120
Procedure for tilting down (power trim and tilt models)
1.
Push the power trim and tilt switch “ ”
(up) until the outboard motor is supported by the tilt rod and the tilt support lever becomes free.
2.
Release the tilt support lever.
ZMU03453
3.
Push the power trim and tilt switch “ ”
(down) to lower the outboard motor to the desired position.
DN
ZMU04147
EMU28061
Shallow water
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.
EMU32922
Procedure for power trim and tilt models
1.
Place the remote control lever in neutral.
51
Operation
2.
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] mal running position, press the power trim and tilt switch and slowly tilt the outboard motor down.
EMU28194
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 and, if possible, rinse the power head under the cowling.
Cruising in muddy, turbid, or acidic water
Yamaha strongly recommends that you use the optional chromium-plated water pump kit
(see page 17) if you use the outboard motor in acidic water or water 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.
UP
UP
DN
ZMU01935
UP
ZMU04146
3.
To return the outboard motor to the nor-
52
Maintenance
EMU28226
Transporting and storing outboard motor
EWM00692
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.
EWM01860
WARNING
Leaking fuel is a fire hazard. When transporting and storing the outboard motor, close the fuel cock to prevent fuel from leaking. Never get under the engine while it is tilted. Severe injury could occur if the outboard motor accidentally falls.
ECM00660
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.
The outboard motor should be trailered 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.
EMU30272
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.
ECM01411
NOTICE
● 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.
ZMU04154
EMU28303
Procedure
EMU28383
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 56.
2.
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
53
Maintenance
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 silencer cover/cap. Remove the 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]
1. Flushing attachment
5.
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]
6.
Run the engine at a fast idle for 10–15 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 each carburetor/each intake manifold. When properly done, the engine will smoke excessively and almost stall.
8.
Remove the flushing attachment and wipe off any excess water.
9.
Install the silencer cover/cap and top cowling. Install the propeller.
TIP:
A flushing attachment is available from your
Yamaha dealer.
EMU28411
Lubrication (oil injection models)
1.
Install the spark plug(s) and torque to proper specification. For information on spark plug installation, see page 61.
2.
Fill the oil tanks. This prevents the formation of condensation. For models with a remote oil tank, it may be necessary to manually override the control unit to completely fill the engine oil tank.
3.
Change the gear oil. For instructions, see page 65. Inspect the oil for the presence of water which indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use.
4.
Grease all grease fittings. For further details, see page 61.
TIP:
For long-term storage, fogging the engine with oil is recommended. Contact your
Yamaha dealer for information about fogging
54
Maintenance oil and procedures for your engine.
EMU28423
Cleaning and anticorrosion measures
1.
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]
2.
Spray the outboard motor exterior with
“Yamaha Silicone Protectant”.
3.
Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax”.
EMU28443
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
1. Fitting
2. Garden hose connector
3. Garden hose
2 3
ZMU04148
2.
Screw the garden hose adapter onto a garden hose, which is connected to a fresh water supply, and then connect it to the garden hose connector.
3.
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.
4.
Reinstall the garden hose connector onto the fitting on the bottom cowling.
Tighten the connector securely. NO-
TICE: 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
55
Maintenance 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 53.
EMU28450
Cleaning the outboard motor
After use, wash the exterior of the outboard motor with fresh water. Flush the cooling system with fresh water.
ZMU02550
TIP:
For cooling system flushing instructions, see page 53.
EMU28460
Checking painted surface of motor
Check the 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.
EMU2848A
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.
● 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
56
have the mechanical skills, tools, and other equipment necessary to perform maintenance not covered by this owner’s manual.
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.
EMU35520
Maintenance interval guidelines
The service intervals provided in the Maintenance Chart were developed based upon
“typical” use that includes operating at varied 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 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.
Maintenance
57
Maintenance
EMU34445
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.
Item Actions
Initial
20 hours
(3 months)
100 hours (1 year)
Every
300 hours (3 years)
500 hours (5 years)
Anode(s) (external)
Inspection or replacement as necessary
Anode(s) (cylinder head, thermostat cover)
Anodes (exhaust cover, cooling water passage cover, Rectifier Regulator cover)
Battery (electrolyte level, terminal)
Battery (electrolyte level, terminal)
Cooling water leakage
Inspection or replacement as necessary
Replacement
Inspection
Fill, charging or replacing as necessary
Inspection or replacement as necessary
Inspection Cowling clamp
Engine starting condition/Noise
Engine idling speed/
Noise
Fuel filter (can be disassembled)
Fuel line(High pressure)
Inspection
Inspection
Inspection or replacement as necessary
Inspection
58
Maintenance
Item Actions
Fuel line(High pressure)
Fuel line(Low pressure)
Fuel line(Low pressure)
Fuel pump
Inspection or replacement as necessary
Inspection
Inspection or replacement as necessary
Inspection or replacement as necessary
Inspection
Replacement
Fuel/oil leakage
Gear oil
Greasing points
Impeller/water pump housing
Impeller/water pump housing
Oil tank water drain
Oil injection pump/oil feed pump
Power trim & tilt unit/
Operation,noise and oil leakage
Propeller/Propeller nut/
Cotter pin
Greasing
Inspection or replacement as necessary
Replacement
Inspection or cleaning
Inspection or Adjustment
Inspection
Shift link/shift cable
Spark plug(s)
Spark plug caps/high tension cords
Water from the cooling water pilot hole
Throttle link/Throttle cable/Throttle pick-up timing
Thermostat
Water inlet
Inspection or replacement as necessary
Inspection, adjustment or replacement as necessary
Inspection or replacement as necessary
Inspection or replacement as necessary
Inspection
Inspection, adjustment or replacement as necessary
Inspection or replacement as necessary
Inspection
Initial
20 hours
(3 months)
100 hours (1 year)
Every
300 hours (3 years)
500 hours (5 years)
59
Maintenance
Item Actions
Main switch/stop switch/choke switch
Inspection or replacement as necessary
(Yamaha) Meter/gauge Inspection
EMU34451
Maintenance chart 2
Item Actions
Guide exhaust/exhaust manifold
Inspection or replacement as necessary
Initial
20 hours
(3 months)
100 hours (1 year)
Every
300 hours (3 years)
500 hours (5 years)
Every
1000 hours
60
EMU28932
Greasing
Yamaha marine grease (Water resistant grease)
115
Maintenance
EMU28955
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
ZMU04149 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 heat and deposits will cause the spark plug
61
Maintenance to slowly break down and erode. 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.
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 allow external sparks, which could lead to explosion or fire.
[EWM00561]
Standard spark plug:
BR8HS-10
Spark plug torque:
25.0 Nm (2.55 kgf-m, 18.4 ft-lb)
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 torque-wrench.
EMU37450
Checking fuel filter
Check the fuel filter periodically. If any water or foreign matter is found in the filter, clean or replace it. For cleaning or replacement of the fuel filter, consult your Yamaha dealer.
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; adjust the gap to specification if necessary.
Spark plug gap:
0.9–1.0 mm (0.035–0.039 in)
4.
When fitting the plug, wipe off any dirt from the threads, and then screw it in to the correct torque.
1. Spark plug gap
2. Spark plug I.D. mark (NGK)
3. Spark plug part number
62
ZMU04151
EMU29041
Inspecting idling 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
Maintenance 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.
A diagnostic tachometer should be used 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.
TIP:
Correct idling speed inspection is only possible if the engine is fully warmed up. If not warmed up fully, the idle speed will measure higher than normal. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer or other qualified mechanic.
2.
Verify whether the idle speed is set to specification. For idle speed specifications, see page 13.
EMU29050
Checking water in engine oil tank
Oil injection models
There is a water trap at the bottom of the engine oil tank. If water or foreign matter is visible in this trap, consult your Yamaha dealer.
1. Water trap
2. Engine oil tank
1
2
ZMU01895
EMU29112
Checking wiring and connectors
● Check that each grounding wire is properly secured.
● Check that each connector is engaged securely.
ZMU03915
EMU32111
Checking propeller
EWM01880
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 switch to “ ”
(off) and remove the key, and remove the clip from the engine shut-off switch.
63
Maintenance
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.
EMU30661
Removing propeller
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.
[EWM01890]
ZMU01897
●
●
●
Checkpoints
● Check each of the propeller blades for wear, 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.
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
● Check the propeller shaft oil seal for damage.
3.
Remove the propeller, washer (if equipped), and thrust washer.
EMU30671
Installing propeller
EMU29233
Spline models
ECM00500
NOTICE
Be 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
64
Maintenance
2.
shaft.
Install the spacer (if equipped), thrust washer, washer (if equipped), and propeller on the propeller shaft. NOTICE:
Be sure to install the thrust washer before installing the propeller, otherwise the lower case and propeller boss could be damaged.
[ECM01880]
3.
Install the spacer (if equipped) and the washer. Tighten the propeller nut to the specified torque.
Propeller nut tightening torque:
55.0 Nm (5.61 kgf-m, 40.6 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. NO-
TICE: Do not reuse the cotter pin installed. Otherwise the propeller can come off during operation.
[ECM01890] 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.
Tilt the outboard motor so that the gear oil drain screw is at the lowest point possible.
2.
Place a suitable container under the gear case.
3.
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]
2
1
ZMU03273
ZMU03545
1. Gear oil drain screw
2. Oil level plug
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.
EMU29287
Changing gear oil
EWM00800
WARNING
● Be sure the outboard motor is securely fastened to the transom or a stable
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. NO-
TICE: Inspect the used oil after it has
65
Maintenance been drained. If the oil is milky, water is getting into the gear case which can cause gear damage. Consult a
Yamaha dealer for repair of the lower unit seals.
[ECM00711]
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:
Hypoid gear oil SAE#90
Gear oil quantity:
0.760 L (0.803 US qt, 0.669 Imp.qt)
EMU29312
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.
ECM00720
NOTICE
Do not paint anodes, as this would render them ineffective.
TIP:
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.
ZMU03274
6.
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 (0.9 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.
Tightening torque:
9 Nm (0.9 kgf-m, 6.6 ft-lb)
66
ZMU01901
ZMU03461
Maintenance
EMU29322
Checking battery (for electric start models)
EWM01900
WARNING
Battery electrolytic fluid 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.
Refer to page 14 for detailed safety information about batteries.
The procedure for checking the battery varies 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.
ing, consult your Yamaha dealer.
3.
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.
[EWM01910]
EMU29333
Connecting the battery
EWM00570
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.
ECM01123
NOTICE
Reversal of the battery cables will damage the electrical parts.
1.
Make sure the main switch (on applicable models) is “ ” (off) before working on the battery.
2.
Connect the red battery cable to the
POSITIVE (+) terminal first. Then connect the black battery cable to the NEG-
ATIVE (-) terminal.
2.
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 charg-
1. Red cable
2. Black cable
3. Battery
3.
The electrical contacts of the battery and
67
Maintenance cables must be clean and properly connected, or the battery will not start the engine.
EMU29371
Disconnecting the battery
1.
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]
2.
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]
3.
Disconnect the positive cable(s) and remove the battery from the boat.
4.
Clean, maintain, and store the battery according to the manufacturer’s instructions.
68
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.
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 43.
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.
Starter will not operate.
Q. Is battery capacity weak or low?
A. Check battery condition. Use battery of recommended capacity.
Q. Are spark plug cap(s) fitted incorrectly?
A. Check and re-fit cap(s).
Q. Are battery connections loose or corroded?
A. Tighten battery cables and clean battery terminals.
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. 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 ignition parts faulty?
A. Have serviced by a Yamaha dealer.
Q. Are starter components faulty?
A. Have serviced by a Yamaha dealer.
Q. Is engine shut-off cord (lanyard) not attached?
A. Attach cord.
Q. Is shift lever in gear?
A. Shift to neutral.
Q. Are engine inner parts damaged?
A. Have serviced by a Yamaha dealer.
Engine will not start (starter operates).
Q. Is fuel tank empty?
A. Fill tank with clean, fresh fuel.
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.
Q. Is fuel contaminated or stale?
69
Trouble Recovery
Q. Is fuel system obstructed?
A. Check for pinched or kinked fuel line or other obstructions in fuel system.
A. Return to home position.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
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 filter clogged?
A. Clean or replace filter.
Q. Is fuel joint connection incorrect?
A. Connect correctly.
Q. Have ignition parts failed?
A. Have serviced by a Yamaha dealer.
Q. Is throttle valve adjustment incorrect?
A. Have serviced by a Yamaha dealer.
Q. Has alert system activated?
A. Find and correct cause of alert.
Q. Is battery cable disconnected?
A. Connect securely.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Alert buzzer sounds or indicator lights.
Q. Is cooling system clogged?
A. Check water intake for restriction.
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. 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. Are carburetor adjustments incorrect?
A. Have serviced by a Yamaha dealer.
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 specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Is engine oil contaminated or deteriorated?
A. Replace oil with fresh, specified type.
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.
70
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 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 motor mounted at incorrect height on transom?
A. Have motor adjusted to proper transom height.
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. Is fuel pump damaged?
A. Have serviced by a Yamaha dealer.
Q. Are weeds or other foreign matter tangled
71
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.
Q. Is steering pivot loose or damaged?
A. Tighten or have serviced by a Yamaha dealer.
EMU29433
Temporary action in emergency
EMU29440
Impact damage
EWM00870
WARNING
The outboard motor can be seriously damaged by a collision while operating or
1.
Stop the engine immediately.
2.
Inspect the control system and all components for damage. Also inspect the boat for damage.
3.
Whether damage is found or not, return to the nearest harbor slowly and carefully.
4.
Have a Yamaha dealer inspect the outboard motor before operating it again.
EMU29463
Replacing fuse
If the fuse has blown on an electric start model, open the fuse holder and replace the fuse with a new one of the proper amperage.
EWM00631
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.
72
Trouble Recovery
1
1. Fuse holder
2. Fuse (20 A, 30 A)
1. Manual valve screw
2
ZMU04152
Consult your Yamaha dealer if the new fuse immediately blows again.
EMU29524
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 trim and tilt unit, the engine can be tilted manually.
1.
Loosen the manual valve screw by turning it counterclockwise until it stops.
1
ZMU03464
2.
Put the engine in the desired position, then tighten the manual valve screw by turning it clockwise.
EMU29533
Starter will not operate
If the starter mechanism does not operate
(the engine cannot be cranked with the starter), the engine can be started with an emergency starter rope.
EWM01022
WARNING
● 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 fly-
73
Trouble Recovery wheel 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 electrical components when starting or operating the motor. You could get an electrical shock.
EMU29562
Emergency starting engine
1.
Remove the top cowling.
2.
Remove the start-in-gear protection cable from the starter, if equipped.
3.
Remove the starter/flywheel cover after removing the bolt(s).
OFF ON START
ZMU02334
ZMU03920
4.
Prepare the engine for starting. For further information, see page 43. Be sure the engine is in neutral and that the clip is attached to the engine shut-off switch.
The main switch must be “ ” (on), if equipped.
ZMU01906
5.
If equipped the choke knob, pull out it when the engine is cold. After the engine starts, gradually return the choke knob to its home position as the engine warms up.
ZMU03921
6.
Insert the knotted end of the emergency starter rope into the notch in the flywheel rotor and wind the rope several turns around the flywheel clockwise.
7.
Give a strong pull straight out to crank
74
and start the engine. Repeat if necessary.
Trouble Recovery
OFF ON START
ZMU01906
ZMU03466
EMU29671
Engine fails to operate
EMU29742
Low oil level alert activates
If the oil level is allowed to drop too low, the red segment will appear on the oil level indicator, the buzzer will sound, and engine speed will be limited to about 2000 r/min. If this happens, a reserve amount of oil can be pumped from the remote oil tank to the engine oil tank using the emergency switch.
EWM01050
WARNING
Be sure to stop the engine before performing this procedure.
ECM00901
NOTICE
● If the emergency switch is held up too long, too much oil will be pumped into the engine oil tank, overflowing it. Release the switch when oil reaches the
● upper level line on the engine oil tank.
Do not use this emergency procedure unless the oil level-alert indicators are working.
1.
Remove the top cowling.
2.
Turn on the main switch.
3.
Lift the emergency switch to pump reserve oil into the engine oil tank from the remote oil tank.
1. Emergency switch
1
1. Engine oil tank
2. Remote oil tank
2
1
ZMU04153
ZMU01908
4.
After using the emergency switch, turn off the main switch, then turn it back on.
This resets the alert system to normal
75
Trouble Recovery operation. The yellow segment will continue to be displayed on the oil level indicator.
5.
Start the engine and return to the nearest port for more oil.
TIP:
● The maximum reserve oil capacity is 1500 cm
3
(1.6 US qt, 1.31 Imp qt).
● The oil-feed pump will not operate if the engine is tilted up more than 35°. Put the engine in the upright position (not tilted) before using the emergency switch.
EMU29751
Top cowling does not unlock
If the top cowling stays locked when the release lever is operated, the cable may be damaged or incorrectly adjusted.
1.
Pull the cowling release lever to unlock the front lock.
to release the starboard side rear lock.
NOTICE: Be sure the problem with the cowling lock is repaired before reinstalling the cowling.
[ECM00391]
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]
2
3
1
ZMU03544
1. Cowling release lever
2. Starboard-side cowling release wire
3. Port-side cowling release wire
2.
Pull the emergency cowling release wire coming out of the hole on the side of the pilot hole in the bottom cowling to release the port side rear lock.
3.
Lift the port side of the top cowling to pull out the emergency cowling release wire from the port side of the bottom cowling.
4.
Pull the emergency cowling release wire
76
Consumer information
EMU29811
Important warranty information for U.S.A. and Canada
77
Consumer information
78
Consumer information
EMU29820
YAMAHA MOTOR CORPORATION, U.S.A.
OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY
79
Consumer information
80
Consumer information
81
Consumer information
EMU29841
IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR
YAMAHA OUTSIDE THE USA OR CANADA
82
6N6-9-1H Hyoshi 08.2.21 9:42 ページ 3
6N6-9-1H Hyoshi 08.2.21 9:42 ページ 4
Printed in Japan
April 2008-0.3 × 1 !
Printed on recycled paper
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Table of contents
- 7 Safety information
- 7 Outboard motor safety
- 7 Propeller
- 7 Rotating parts
- 7 Hot parts
- 7 Electric shock
- 7 Power trim and tilt
- 7 Engine shut-off cord (lanyard)
- 7 Gasoline
- 8 Gasoline exposure and spills
- 8 Carbon monoxide
- 8 Modifications
- 8 Boating safety
- 8 Alcohol and drugs
- 8 Personal flotation devices
- 8 People in the water
- 8 Passengers
- 8 Overloading
- 9 Avoid collisions
- 9 Weather
- 9 Accident reporting
- 9 Boat education and training
- 10 Passenger training
- 10 Boating safety publications
- 10 Laws and regulations
- 10 Boating organizations
- 10 road)
- 11 sound signals
- 11 Rules when encountering vessels
- 12 Other special situations
- 15 General information
- 15 Identification numbers record
- 15 Outboard motor serial number
- 15 Key number
- 16 Read manuals and labels
- 16 Warning labels
- 19 requirements
- 19 Specifications
- 20 Installation requirements
- 20 Boat horsepower rating
- 20 Mounting motor
- 20 Remote control requirements
- 20 Battery requirements
- 20 Specifications of Battery
- 20 Mounting battery
- 21 Multiple batteries
- 21 Propeller selection
- 21 Start-in-gear protection
- 21 Engine oil requirements
- 22 Fuel requirements
- 22 Gasoline
- 22 Ring Free Fuel Additive
- 23 Muddy or acidic water
- 23 Anti-fouling paint
- 23 Motor disposal requirements
- 23 Emission control information
- 23 North American models
- 25 Components
- 25 Components diagram
- 25 Remote control box
- 26 Remote control lever
- 26 Neutral interlock trigger
- 26 Neutral throttle lever
- 27 Choke switch
- 27 Throttle friction adjuster
- 28 Choke knob for pull type
- 28 Main switch
- 28 remote control
- 29 bottom engine cowling
- 29 Trim tab with anode
- 30 and tilt model
- 30 Top cowling release lever
- 31 Flushing device
- 32 Instruments and indicators
- 32 Digital tachometer
- 32 Trim meter
- 32 Hour meter
- 32 Oil level indicator (digital type)
- 33 Overheat-alert indicator
- 33 Digital speedometer
- 33 Speedometer
- 34 Fuel gauge
- 34 Trip meter / Clock / Voltmeter
- 35 Fuel level-alert indicator
- 35 indicator
- 35 Analog tachometer
- 35 indicators 2)
- 36 Analog trim meter
- 37 Engine control system
- 37 Alert system
- 37 Overheat alert
- 37 alert
- 39 Installation
- 39 Mounting the outboard motor
- 41 Operation
- 41 First-time operation
- 41 Breaking in engine
- 41 Getting to know your boat
- 41 Checks before starting engine
- 42 Fuel level
- 42 Remove cowling
- 42 Fuel system
- 42 Controls
- 43 Engine shut-off cord (lanyard)
- 43 Engine
- 43 storage
- 43 Flushing device
- 44 Install cowling
- 44 system
- 45 Battery
- 46 Filling fuel and engine oil
- 46 fuel joint
- 46 Filling oil
- 48 Oil level indicator operation
- 49 Operating engine
- 49 Feeding fuel
- 49 Starting engine
- 51 Checks after starting engine
- 51 Cooling water
- 51 Warming up engine
- 51 Choke start models
- 51 Checks after engine warm-up
- 51 Shifting
- 51 Stop switches
- 52 Shifting
- 53 Stopping boat
- 53 Stopping engine
- 53 Procedure
- 53 Trimming outboard motor
- 54 and tilt)
- 54 Adjusting boat trim
- 55 Tilting up and down
- 56 and tilt models)
- 57 trim and tilt models)
- 57 Shallow water
- 57 Power trim and tilt models
- 58 Cruising in other conditions
- 59 Maintenance
- 59 outboard motor
- 59 Storing outboard motor
- 59 Procedure
- 60 Lubrication (oil injection models)
- 61 measures
- 61 Flushing power unit
- 62 Cleaning the outboard motor
- 62 motor
- 62 Periodic maintenance
- 63 Replacement parts
- 63 Maintenance interval guidelines
- 64 Maintenance chart
- 67 Greasing
- 68 Checking fuel filter
- 68 Inspecting idling speed
- 69 Checking water in engine oil tank
- 69 Checking wiring and connectors
- 69 Checking propeller
- 70 Removing propeller
- 70 Installing propeller
- 71 Changing gear oil
- 72 anode(s)
- 73 models)
- 73 Connecting the battery
- 74 Disconnecting the battery
- 75 Trouble Recovery
- 75 Troubleshooting
- 78 Temporary action in emergency
- 78 Impact damage
- 78 Replacing fuse
- 79 operate
- 79 Starter will not operate
- 80 Emergency starting engine
- 81 Engine fails to operate
- 81 Low oil level alert activates
- 82 Top cowling does not unlock
- 82 Treatment of submerged motor
- 83 Consumer information
- 83 for U.S.A. and Canada
- 85 YEAR LIMITED WARRANTY
- 88 THE USA OR CANADA