Owner's manual | Yamaha T-50 Owner`s manual

F50

F60

F70

T50

T60

OWNER’S MANUAL

q Read this manual carefully before operating this outboard motor.

6C1-9-19 Hyoshi.indd 1

U.S.A.Edition

LIT-18626-08-72

6C1-28199-19

2010/02/18 14:41:36

cover21.fm 1 ページ２０１０年２月１８日　木曜日　午後２時８分

EMU25052

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.

6C1-9-19 Hyoshi.indd 2 2010/02/18 14:41:36

6C1-9-19.book 1 ページ２０１０年２月１７日　水曜日　午後１時３８分

EMU31285

To the owner

Thank you for selecting a Yamaha outboard motor. This Owner’s Manual contains information needed for proper operation, maintenance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new

Yamaha. If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer.

In this Owner’s Manual particularly important information is distinguished in the following ways.

Important manual information there is any question concerning this manual, please consult your Yamaha dealer.

TIP:

The F50TR, F60TR, F70A, F70HA, T50TR,

T60TR 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.

EMU25112

: 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.

F50, F60, F70, T50, T60

OWNER’S MANUAL

© 2010 by Yamaha Motor Corporation, U.S.A.

1st edition, February 2010

All rights reserved.

Any reprinting or unauthorized use without the written permission of

Yamaha Motor Corporation, U.S.A.

is expressly prohibited.

Printed in Japan

P/N LIT-18626-08-72

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.................................. 4

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.................................... 14

Specifications ................................. 14

Remote control requirements......... 16

Battery requirements...................... 16

Specifications of Battery ................. 16

Mounting battery ............................. 16

Multiple batteries ............................. 16

Propeller selection ......................... 17

Start-in-gear protection .................. 17

Engine oil requirements ................. 18

Fuel requirements .......................... 18

Gasoline .......................................... 18

Ring Free Fuel Additive................... 19

Anti-fouling paint ............................ 19

Motor disposal requirements.......... 19

Emergency equipment ................... 19

Emission control information.......... 19

North American models................... 19

Star labels ....................................... 20

Components .................................... 22

Components diagram..................... 22

Fuel tank ......................................... 25

Fuel joint.......................................... 25

Fuel gauge ...................................... 26

Fuel tank cap................................... 26

Air vent screw.................................. 26

Remote control box ......................... 26

Remote control lever ....................... 26

Neutral interlock trigger ................... 26

Neutral throttle lever........................ 26

Tiller handle..................................... 27

Gear shift lever................................ 27

Throttle grip ..................................... 27

Throttle indicator ............................. 27

Throttle friction adjuster................... 28

Engine shut-off cord (lanyard) and clip.......................................... 28

Engine stop button .......................... 29

Main switch ..................................... 29

Steering friction adjuster ................. 29

Power trim and tilt switch on remote control or tiller handle ....... 30

Power trim and tilt switch on bottom cowling .............................. 31

Variable trolling RPM switches........ 31

Trim tab with anode......................... 32

Tilt support lever for power trim and tilt model................................. 32

Cowling lock lever(s) (turn type)...... 33

Flushing device ............................... 33

Fuel filter/Water separator............... 33


Instruments and indicators ............ 35

Digital tachometer .......................... 35

Tachometer..................................... 35

Trim meter....................................... 35

Hour meter ...................................... 35

Low oil pressure-alert indicator ....... 36

Overheat-alert indicator .................. 36

Digital speedometer ....................... 36

Speedometer .................................. 36

Fuel gauge ...................................... 37

Trip meter / Clock / Voltmeter ......... 37

Fuel level-alert indicator.................. 38

Low battery voltage-alert indicator ........................................ 38

Analog tachometer ......................... 38

Low oil pressure-alert indicator ....... 38

Overheat-alert indicator .................. 39

Analog trim meter........................... 39

Command link multifunction meters .......................................... 39

Command link multifunction tachometers ................................. 40

Start-up checks ............................... 41

Adjusting trolling speed................... 41

Low oil pressure-alert...................... 41

Overheat alert ................................. 42

Water separator alert ...................... 42

Engine trouble alert......................... 43

Low battery voltage-alert................. 43

Command link multifunction speed & fuel meters ..................... 44

Command link multifunction speedometers .............................. 45

Command link multifunction fuel management meters .................... 45

Engine control system.................... 47

Alert system ................................... 47

Overheat alert ................................. 47

Low oil pressure alert...................... 47

Installation ....................................... 49

Installation ...................................... 49

Mounting the outboard motor.......... 49

Operation ......................................... 51

First-time operation ........................ 51

Fill engine oil ................................... 51


Breaking in engine .......................... 51

Getting to know your boat ............... 51

Checks before starting engine ....... 51

Fuel level......................................... 51

Remove the top cowling.................. 52

Fuel system..................................... 52

Controls........................................... 52

Engine shut-off cord (lanyard)......... 53

Engine oil ........................................ 53

Engine ............................................. 54

Flushing device ............................... 54

Install top cowling............................ 54

Power trim and tilt system ............... 55

Battery............................................. 55

Filling fuel....................................... 55

Operating engine ........................... 56

Sending fuel (portable tank) ............ 57

Starting engine ................................ 58

Checks after starting engine .......... 60

Cooling water .................................. 60

Warming up engine........................ 61

Manual start and electric start models .......................................... 61

Checks after engine warm up ........ 61

Shifting ............................................ 61

Stop switches .................................. 61

Shifting ........................................... 61

Stopping boat................................. 62

Trolling ........................................... 63

Adjusting trolling speed ................... 63

Stopping engine ............................. 63

Procedure........................................ 63

Trimming outboard motor............... 64

Adjusting trim angle

(Power trim and tilt)....................... 65

Adjusting boat trim .......................... 66

Tilting up and down........................ 66

Procedure for tilting up

(power trim and tilt models)........... 67

Procedure for tilting down

(power trim and tilt models)........... 68

Shallow water................................. 69

Power trim and tilt models............... 69

Cruising in other conditions............ 70

Maintenance .................................... 71



Transporting and storing outboard motor ............................................ 71

Storing outboard motor ................... 71

Procedure ....................................... 72

Lubrication ...................................... 73

Cleaning and anticorrosion measures ...................................... 73

Flushing power unit......................... 73

Cleaning the outboard motor .......... 75

Checking painted surface of outboard motor ............................. 75

Periodic maintenance..................... 75

Replacement parts.......................... 75

Maintenance interval guidelines...... 76

Maintenance chart 1 ....................... 77

Maintenance chart 2 ....................... 79

Greasing ......................................... 80

Cleaning and adjusting spark plug ............................................... 82

Inspecting idle speed ...................... 83

Changing engine oil ........................ 83

Inspecting wiring and connectors.... 85

Checking propeller .......................... 85

Removing propeller......................... 86

Installing propeller........................... 86

Changing gear oil............................ 87

Cleaning fuel tank ........................... 88

Inspecting and replacing anode(s)........................................ 89

Checking battery

(for electric start models) .............. 89

Connecting the battery.................... 90

Disconnecting the battery ............... 91

Trouble Recovery............................ 92

Troubleshooting ............................. 92

Temporary action in emergency..... 95

Impact damage ............................... 95

Replacing fuse ................................ 95

Power trim and tilt will not operate.......................................... 96

Water separator-alert indicator blinks while cruising ...................... 97

Starter will not operate .................. 100

Emergency starting engine ........... 100

Treatment of submerged motor.... 101

Consumer information ................. 102

YAMAHA MOTOR

CORPORATION, U.S.A.

FOUR-STROKE OUTBOARD

MOTOR

THREE-YEAR LIMITED

WARRANTY .............................. 102

IMPORTANT WARRANTY

INFORMATION IF YOU USE

YOUR YAMAHA OUTSIDE

THE USA OR CANADA............. 104


EMU33622

Outboard motor safety

Observe these precautions at all times.

EMU36501

Propeller

People can be injured or killed if they come in contact with the propeller. The propeller can keep moving even when the motor is in neutral, and sharp edges of the propeller can cut even when stationary.

●

Stop the engine when a person is in the

● water near you.

Keep people out of reach of the propeller, even when the engine is off.

EMU33630

Rotating parts

Hands, feet, hair, jewelry, clothing, PFD straps, etc. can become entangled with internal rotating parts of the engine, resulting in serious injury or death.

Keep the top cowling in place whenever possible. Do not remove or replace the cowling with the engine running.

Only operate the engine with the cowling removed according to the specific instructions in the manual. Keep hands, feet, hair, jewelry, clothing, PFD straps, etc. away from any exposed moving parts.

EMU33640

Hot parts

During and after operation, engine parts are hot enough to cause burns. Avoid touching any parts under the top cowling until the engine has cooled.

EMU33650

Electric shock

Do not touch any electrical parts while starting or operating the engine. They can cause shock or electrocution.

EMU33660

Power trim and tilt

Body parts can be crushed between the mo-

Safety information tor and the clamp bracket when the motor is trimmed or tilted. Keep body parts out of this area at all times. Be sure no one is in this area before operating the power trim and tilt mechanism.

The power trim and tilt switches operate even when the main switch is off. Keep people be away from the switches whenever working around the motor.

Never get under the lower unit while it is tilted, even when the tilt support lever is locked.

Severe injury could occur if the outboard motor accidentally falls.

EMU33671

Engine shut-off cord (lanyard)

Attach the engine shut-off cord so that the engine stops if the operator falls overboard or leaves the helm. This prevents the boat from running away under power and leaving people stranded, or running over people or objects.

Always attach the engine shut-off cord to a secure place on your clothing or your arm or leg while operating. Do not remove it to leave the helm while the boat is moving. Do not attach the cord to clothing that could tear loose, or route the cord where it could become entangled, preventing it from functioning.

Do not route the cord where it is likely to be accidentally pulled out. If the cord is pulled during operation, the engine will shut off and you will lose most steering control. The boat could slow rapidly, throwing people and objects forward.

EMU33810

Gasoline

Gasoline and its vapors are highly flam-

mable and explosive. Always, refuel according to the procedure on page 56 to reduce the risk of fire and explosion.

1


2

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.

EMU33731

People in the water

Always watch carefully for people in the water, such as swimmers, skiers, or divers, whenever the engine is running. When someone is in the water near the boat, shift into neutral and stop the engine.

Stay away from swimming areas. Swimmers can be hard to see.

The propeller can keep moving even when the motor is in neutral. Stop the engine when a person is in the water near you.

EMU33751

Passengers

Consult your boat manufacturer’s instructions for details about appropriate passenger locations in your boat and be sure all passengers are positioned properly before accelerating and when operating above an idle speed. Standing or sitting in non-designated locations may result in being thrown either overboard or within the boat due to waves, wakes, or sudden changes in speed or direction. Even when people are positioned properly, alert your passengers if you must make any unusual maneuver. Always avoid jumping waves or wakes.

EMU33760

Overloading

Do not overload the boat. Consult the boat capacity plate or boat manufacturer for maximum weight and number of passengers. Be sure that weight is properly distributed according to the boat manufacturers instructions. Overloading or incorrect weight distribution can compromise the boats handling and lead to an accident, capsizing or


Safety information swamping.

EMU33772

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 understand where you are going.

●

●

●

Avoid areas with submerged objects or shallow water.

Ride within your limits and avoid aggressive maneuvers to reduce the risk of loss of control, ejection, and collision.

Take early action to avoid collisions. Remember, boats do not have brakes, and stopping the engine or reducing throttle can reduce the ability to steer. If you are not sure that you can stop in time before hitting an obstacle, apply throttle and turn in another direction.

EMU33790

Weather

Stay informed about the weather. Check weather forecasts before boating. Avoid boating in hazardous weather.

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, go to boatus.org.

3


4


EMU33880

Passenger training

Make sure at least one other passenger is trained to operate the boat in the event of an emergency.

EMU33890

Boating safety publications

Be informed about boating safety. Additional publications and information can be obtained from many boating organizations.

EMU33590

Laws and regulations

Know the marine laws and regulations where you will be boating- and obey them. Several sets of rules prevail according to geographic location, but all are basically the same as the

International Rules of the Road. The rules presented in the following section are condensed- and have been provided for your convenience only.

Contact the U.S. Coast Guard, the National

Association of State Boating Law Administrators, or your local Power Squadron for a complete set of rules governing the waters in which you will be using your boat.

EMU33682

Boating organizations

The following organizations provide boating safety training and information about boating safety and laws.

Boat Owners Association of The United

States

1-800-336-BOAT (1-800-336-2628) http://www.boatus.com/

National Association of State Boating

Law Administrators (NASBLA)

1500 Leestown Road, Suite 330

Lexington, KY 40511 859-225-9497 http://www.nasbla.org/

National Marine Manufacturers Association (NMMA)

200 East Randolph Drive

Suite 5100

Chicago, IL 60601 http://www.nmma.org/

Marine Retailers Association of America

155 N. Michigan Ave. Chicago,

IL 60304 http://www.mraa.com/

United States Coast Guard

Consumer Affairs Staff (G-BC)

Office of Boating, Public, and Consumer Affairs

U.S. Coast Guard Headquarters

Washington, D.C. 20593-0001 http://www.uscgboating.org/

United States Power Squadrons

1-888-FOR-USPS (1-888-367-8777) http://www.usps.org/

EMU33691

Basic boating rules (Rules of the road)

Just as there are rules that apply when you are driving on streets and highways, there are waterway rules that apply when you are driving your boat. These rules are used internationally. (For U.S.A.: and are also enforced by the United States Coast Guard and local agencies.) You should be aware of these rules, and follow them whenever you encounter another vessel on the water.

EMU33700

Steering and sailing rules and sound signals

Whenever two vessels on the water meet one another, one vessel has the right-of-


Safety information way; 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.

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 vessels try to avoid each other. If that is the case, both vessels become “ Give-Way ” vessels.

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.

5


6


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.

7



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.

9



EMU33522

Read manuals and labels

Before operating or working on this outboard motor:

●

Read this manual.

●

●

Read any manuals supplied with the boat.

Read all labels on the outboard motor and the boat.

If you need any additional information, contact your Yamaha dealer.

EMU33832

Warning labels

If these labels are damaged or missing, contact your Yamaha dealer for replacements.

F50, F60, T50, T60

1

2

3

ZMU05676

10



F70

1 2

3

ZMU07102

11



1 2

3

ZMU05670

12



Electrical hazard EMU33843

Symbols

The following symbols mean as follows.

Notice/Warning

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

13


Specifications and requirements

EMU34520

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.

TIP:

“*” means, select the engine oil referring to the chart of engine oil paragraph. For further information, see page 18.

EMU2821J

Dimension:

Overall length:

F50TR 706 mm (27.8 in)

F60TR 706 mm (27.8 in)

F70A 713 mm (28.1 in)

T50TR 706 mm (27.8 in)

T60TR 706 mm (27.8 in)

Overall width:

F50TR 385 mm (15.2 in)

F60TR 385 mm (15.2 in)

F70A 386 mm (15.2 in)

T50TR 385 mm (15.2 in)

T60TR 385 mm (15.2 in)

Overall height L:

F50TR 1414 mm (55.7 in)

F60TR 1414 mm (55.7 in)

F70A 1476 mm (58.1 in)

T50TR 1455 mm (57.3 in)

T60TR 1455 mm (57.3 in)

Transom height L:

F50TR 527 mm (20.7 in)

F60TR 527 mm (20.7 in)

F70A 534 mm (21.0 in)

T50TR 530 mm (20.9 in)

T60TR 530 mm (20.9 in)

Weight (AL) L:

F50TR 113.0 kg (249 lb)

F60TR 113.0 kg (249 lb)

F70A 119.0 kg (262 lb)

T50TR 118.0 kg (260 lb)

T60TR 123.0 kg (271 lb)

Performance:

Full throttle operating range:

F50TR 5000–6000 r/min

F60TR 5000–6000 r/min

F70A 5300–6300 r/min

T50TR 5000–6000 r/min

T60TR 5000–6000 r/min

Maximum output:

F50TR 36.8 kW@5500 r/min

(50 HP@5500 r/min)

F60TR 44.1 kW@5500 r/min

(60 HP@5500 r/min)

F70A 51.5 kW@5800 r/min

(70 HP@5800 r/min)

T50TR 36.8 kW@5500 r/min

(50 HP@5500 r/min)

T60TR 44.1 kW@5500 r/min

(60 HP@5500 r/min)

Idle speed (in neutral):

750 50 r/min

Engine:

Type:

4-stroke L

Displacement:

996.0 cm

3

Bore  stroke:

65.0  75.0 mm (2.56  2.95 in)

Ignition system:

TCI

Spark plug (NGK):

F50TR DPR6EB-9

F60TR DPR6EB-9

F70A LKR7E

T50TR DPR6EB-9

T60TR DPR6EB-9

Spark plug gap:

14



0.8–0.9 mm (0.031–0.035 in)

Control system:

Remote control

Starting system:

Electric starter

Starting carburetion system:

Electronic fuel injection

Valve clearance (cold engine) IN:

0.15–0.25 mm (0.0059–0.0098 in)

Valve clearance (cold engine) EX:

0.25–0.35 mm (0.0098–0.0138 in)

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:

F50TR 16 A

F60TR 16 A

F70A 15 A

T50TR 16 A

T60TR 16 A

Drive unit:

Gear positions:

Forward-neutral-reverse

Gear ratio:

F50TR 1.85(24/13)

F60TR 1.85(24/13)

F70A 2.33(28/12)

T50TR 2.33(28/12)

T60TR 2.33(28/12)

Trim and tilt system:

Power trim and tilt

Propeller mark:

F50TR G

F60TR G

F70A K

T50TR K

T60TR K

Fuel and oil:

Recommended fuel:

Regular unleaded gasoline

Min. pump octane:

86

Fuel tank capacity:

24 L (6.34 US gal, 5.28 Imp.gal)

Recommended engine oil:

4-stroke outboard motor oil

Recommended engine oil group 1*:

SAE 10W-30/10W-40/5W-30

API SE/SF/SG/SH/SJ/SL

Recommended engine oil group 2*:

SAE 15W-40/20W-40/20W-50

API SH/SJ/SL

Total engine oil quantity (oil pan capacity):

2.5 L (2.64 US qt, 2.20 Imp.qt)

Lubrication:

Wet sump

Recommended gear oil:

Hypoid gear oil SAE#90

Gear oil quantity:

F50TR 0.430 L

(0.455 US qt, 0.378 Imp.qt)

F60TR 0.430 L

(0.455 US qt, 0.378 Imp.qt)

F70A 0.670 L

(0.708 US qt, 0.590 Imp.qt)

T50TR 0.670 L

(0.708 US qt, 0.590 Imp.qt)

T60TR 0.670 L

(0.708 US qt, 0.590 Imp.qt)

Tightening torque for engine:

Spark plug:

F50TR 18.0 Nm

(1.84 kgf-m, 13.3 ft-lb)

F60TR 18.0 Nm

(1.84 kgf-m, 13.3 ft-lb)

F70A 17.0 Nm

(1.73 kgf-m, 12.5 ft-lb)

T50TR 18.0 Nm

15



(1.84 kgf-m, 13.3 ft-lb)

T60TR 18.0 Nm

(1.84 kgf-m, 13.3 ft-lb)

Propeller nut:

F50TR 35.0 Nm

(3.57 kgf-m, 25.8 ft-lb)

F60TR 35.0 Nm

(3.57 kgf-m, 25.8 ft-lb)

F70A 34.0 Nm

(3.47 kgf-m, 25.1 ft-lb)

T50TR 35.0 Nm

(3.57 kgf-m, 25.8 ft-lb)

T60TR 35.0 Nm

(3.57 kgf-m, 25.8 ft-lb)

Engine oil drain bolt:

F50TR 28.0 Nm

(2.86 kgf-m, 20.7 ft-lb)

F60TR 28.0 Nm

(2.86 kgf-m, 20.7 ft-lb)

F70A 27.0 Nm

(2.75 kgf-m, 19.9 ft-lb)

T50TR 28.0 Nm

(2.86 kgf-m, 20.7 ft-lb)

T60TR 28.0 Nm

(2.86 kgf-m, 20.7 ft-lb)

Engine oil filter:

18.0 Nm (1.84 kgf-m, 13.3 ft-lb)

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 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

16


Specifications and requirements about battery selection and correct wiring.

EMU34194

Propeller selection

Next to selecting an outboard motor, selecting the right propeller is one of the most important purchasing decisions a boater can make. The type, size, and design of your propeller have a direct impact on acceleration, top speed, fuel economy, and even engine life. Yamaha designs and manufactures propellers for every Yamaha outboard motor and every application.

Your outboard motor came with a Yamaha propeller selected to perform well over a range of applications, but there may be uses where a different propeller would be more appropriate.

Your Yamaha dealer can help you select the right propeller for your boating needs. Select a propeller that will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boatload. Generally, select a larger pitch propeller for a smaller operating load and a smaller pitch propeller for a heavier load. If you carry loads that vary widely, select the propeller that lets the engine run in the proper range for your maximum load but remember that you may need to reduce your throttle setting to stay within the recommended engine speed range when carrying lighter loads.

To check the propeller, see page 85.

x -

1 2 3

1. Propeller diameter in inches

2. Propeller pitch in inches

3. Type of propeller (propeller mark) x -

1 2 3

1. Propeller diameter in inches

2. Propeller pitch in inches

3. Type of propeller (propeller mark)

ZMU04606

ZMU04605

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.

17



EMU31445

Engine oil requirements


YAMALUBE 4-M FC-W oil or 4-stroke motor oil with a combination of the following SAE and API oil classifications

Engine oil type SAE:

10W-30 or 10W-40

Engine oil grade API:

SE, SF, SG, SH, SJ, SL

Total engine oil quantity (oil pan capacity):

2.5 L (2.64 US qt, 2.20 Imp.qt)

Replacement engine oil quantity (at periodic maintenance):

Without oil filter replacement:

1.9 L (2.01 US qt, 1.67 Imp.qt)

With oil filter replacement:

2.1 L (2.22 US qt, 1.85 Imp.qt)

EMU36360

Fuel requirements

EMU36781

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

If the recommended engine oil grades are not available, select an alternative from the following chart according to the average temperatures in your area.

ECM01981

NOTICE

●

●

Do not use leaded gasoline. Leaded gasoline can seriously damage the engine.

Avoid getting water and contaminants in the fuel tank. Contaminated fuel can cause poor performance or engine damage. Use only fresh gasoline that has been stored in clean containers.

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 mi-

18


Specifications and requirements cron 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 Addi-

tive 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.

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.

EMU36341

Motor disposal requirements

Never illegally discard (dump) the motor.

Yamaha recommends consulting the dealer about discarding the motor.

EMU36352

Emergency equipment

Keep the following items onboard in case there is trouble with the outboard motor.

●

A tool kit with assorted screwdrivers, pliers, wrenches (including metric sizes), and

●

● electrical tape.

Waterproof flashlight with extra batteries.

An extra engine shut-off cord (lanyard) with clip.

●

Spare parts, such as an extra set of spark plugs.

Consult your Yamaha dealer for details.

EMU25221

Emission control information

EMU25230

North American models

This engine conforms to U.S. Environmental

Protection Agency (EPA) regulations for ma-

19


Specifications and requirements rine SI engines. See the label affixed to your engine for details.

EMU31560

Approval label of emission control certificate

This label is attached to the bottom cowling.

New Technology; (4-stroke) MFI

1

1

1. Manufactured date label location

ZMU04701

ZMU05797

1. Approval label location

EMISSION CONTROL INFORMATION MFI

THIS ENGINE CONFORMS TO CALIFORNIA AND U.S. EPA EXHAUST

REGULATIONS FOR SI MARINE ENGINES. REFER TO THE OWNER'S

MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.

MEETS U.S. EPA EVAP STANDARDS USING CERTIFIED COMPONENTS.

FAMILY:

DISPLACEMENT: liters

FELs(HC+NOx / CO): / g/kW-hr MAX POWER: kW

SPARK PLUG:

FUEL: GASOLINE

IDLE SPEED: ± rpm IN NETRAL

SPARK PLUG GAP (mm):

VALVE LASH (mm) IN: EX:

YAMAHA MOTOR CO.,LTD.

ZMU06894

EMU25262

Manufactured date label

This label is attached to the clamp bracket or the swivel bracket.

EMU25273

Star labels

Your outboard motor is labeled with a California Air Resources Board (CARB) star label. See below for a description of your particular label.

1

ZMU05088

1. Star labels location

20



EMU25280

One Star—Low Emission

The one-star label identifies engines that meet the Air Resources Board’s 2001 exhaust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two-stroke engines. These engines are equivalent to the

U.S. EPA’s 2006 standards for marine engines.

meet the Air Resources Board’s Personal

Watercraft and Outboard marine engine

2008 exhaust emission standards or the

Sterndrive and Inboard marine engine 2003-

2008 exhaust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines.

ZMU01702

EMU40340

Two Stars—Very Low Emission

The two-star label identifies engines that meet the Air Resources Board’s Personal

Watercraft and Outboard marine engine

2004 exhaust emission standards. Engines meeting these standards have 20% lower emissions than One Star-Low-Emission engines.

ZMU01704

EMU33861

Four Stars—Super Ultra Low Emission

The four-star label identifies engines that meet the Air Resources Board’s Sterndrive and Inboard marine engine 2009 exhaust emission standards. Personal Watercraft and Outboard marine engines may also comply with these standards. Engines meeting these standards have 90% lower emissions than One Star-Low-Emission engines.

ZMU01703

EMU40350

Three Stars—Ultra Low Emission

The three-star label identifies engines that

ZMU05663

21


Components

EMU2579T

Components diagram

TIP:

* May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer).

F50, F60, T50, T60

12

11

10

9

1. Top cowling

2. Water separator

3. Cowling lock lever

4. Drain screw

5. Anode*

6. Anti-cavitation plate

7. Trim tab (anode)

8. Propeller*

9. Cooling water inlet

10. Anode(s)

11. Clamp bracket

12. Tilt support lever

13. Tiller handle*

14. Flushing device

15. Remote control box (side mount type)*

22

13

1

2

3

15

4

5

6

7

8

18

16

19

16. Digital tachometer*

17. Digital speedometer*

18. Tachometer*

19. Trim meter*

20. Fuel tank*

14

17

SPEED

YAMAHA knot mph km mile

TRIP TIME BATT set mode

20

ZMU05090


Components

F70A

11

10

1

2

3

4 13

12

14

10

9

8

1. Top cowling

2. Water separator


4. Drain screw


6. Trim tab (anode)

7. Propeller*


9. Anode(s)


11. Power trim and tilt switch

12. Flushing device

13. Remote control box (side mount type)*

14. Digital tachometer*

15. Digital speedometer*

16. Tachometer*

17. Trim meter*

18. Fuel tank*

5

6

7

16 17 18

15

SPEED

YAMAHA knot mph km mile

TRIP TIME BATT set mode

ZMU07113

23


Components

F70HA

11

10

4

10

9

8

1. Top cowling

2. Water separator


4. Drain screw


6. Trim tab (anode)

7. Propeller*


9. Anode(s)



12. Gear shift lever

13. Variable trolling RPM switch


15. Throttle grip

16. Engine stop button/Engine shut-off switch

17. Clip

18. Main switch

19. Steering friction adjuster

20. Flushing device

5

6

7

1

2

3

20

21

19

21. Fuel tank*

18 17 16

12

13 14

15

ZMU07120

24


1 2 3

Components

4 5 6

ZMU05429

1. Tachometer unit (Square type)*

2. Tachometer unit (Round type)*

3. Speedometer unit (Square type)*

4. Speed & fuel meter unit (Square type)*

5. Speed & fuel meter unit (Round type)*

6. Fuel management meter (Square type)*

2

1

EMU25802

Fuel tank

If your model was equipped with a portable fuel tank, its function is as follows.

EWM00020

WARNING

The fuel tank supplied with this engine is its dedicated fuel reservoir and must not be used as a fuel storage container. Commercial users should conform to relevant licensing or approval authority regulations.

1. Fuel joint

2. Fuel gauge

3. Fuel tank cap

4. Air vent screw

3

4

ZMU02284

EMU25830

Fuel joint

This joint is used to connect the fuel line.

25


Components

EMU25841

Fuel gauge

This gauge is located on either the fuel tank cap or on the fuel joint base. It shows the approximate amount of fuel remaining in the tank.

EMU25850

Fuel tank cap

This cap seals the fuel tank. When removed, the tank can be filled with fuel. To remove the cap, turn it counterclockwise.

EMU25860

Air vent screw

This screw is on the fuel tank cap. To loosen the screw, turn it counterclockwise.

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.

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.

1. Neutral “ ”

2. Forward “ ”

3. Reverse “ ”

4. Shift

5. Fully closed

6. Throttle

7. Fully open

EMU26201

Neutral interlock trigger

To shift out of neutral, first pull the neutral interlock trigger up.


2. Remote control lever

3. Neutral interlock trigger

4. Neutral throttle lever

5. Main switch

6. Engine shut-off switch

7. Throttle friction adjuster


EMU26190

Remote control lever

Moving the lever forward from the neutral position engages forward gear. Pulling the lever back from neutral engages reverse. The

EMU26212

Neutral throttle lever

To open the throttle without shifting into either forward or reverse, put the remote con-

26


Components trol lever in the neutral position and lift the neutral throttle lever.

1. Forward “ ”

2. Neutral “ ”

3. Reverse “ ”

1. Fully open

2. Fully closed

TIP:

The neutral throttle lever will operate only when the remote control lever is in neutral.

The remote control lever will operate only when the neutral throttle lever is in the closed position.

EMU25912

Tiller handle

To change direction, move the tiller handle to the left or right as necessary.

EMU25941

Throttle grip

The throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed.

EMU25923

Gear shift lever

Move the gear shift lever forward to engage the forward gear or rearward to engage the reverse gear.

EMU25961

Throttle indicator

The fuel consumption curve on the throttle indicator shows the relative amount of fuel consumed for each throttle position. Choose the setting that offers the best performance and fuel economy for the desired operation.

27


Components

1. Throttle indicator

EMU25976

Throttle friction adjuster

A friction device provides adjustable resistance to movement of the throttle grip or the remote control lever, and can be set according to operator preference.

To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise. WARNING! Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to move the remote control lever or throttle grip, which could result in an accident.

[EWM00032]

When constant speed is desired, tighten the adjuster to maintain the desired throttle setting.

EMU25994

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 thrown forward.

[EWM00122]

28


1. Cord

2. Clip


Components

EMU26091

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.

●

“ ” (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


EMU26002

Engine stop button

The engine stop button stops the engine when the button is pushed.

EMU31432

Steering friction adjuster

A friction device provides adjustable resistance to the steering mechanism, and can be

29


Components set according to operator preference. An adjuster lever is located on the bottom of the tiller handle bracket.

To increase resistance, turn the lever to the port side “A”.

To decrease resistance, turn the lever to the starboard side “B”.

EWM00040

WARNING

Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to steer, which could result in an accident.

B

A

ZMU02810

If the resistance does not increase even when the lever is turned to the port side “A”, make sure that the nut is tightened to the specified torque.

Nut tightening torque:

3.8 Nm (0.38 kgf-m, 2.8 ft-lb)

TIP:

●

●

●

Steering movement is blocked when the adjuster lever is set to the “A” position.

Check the tiller handle for smooth movement when the lever is turned to the starboard side “B”.

Do not apply lubricants such as grease to the friction areas of the steering friction adjuster.

EMU26143

Power trim and tilt switch on remote control or tiller handle

The power trim and tilt system adjusts the outboard motor angle in relation to the transom. Pressing the switch “ ” (up) trims the outboard motor up, and then tilts it up. Pressing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position.

For instructions on using the power trim and tilt switch, see pages 64 and 66.

1. Nut

30


Components

1

UP

DN

ZMU03634

EMU26154

Power trim and tilt switch on bottom cowling

The power trim and tilt switch is located on the side of the bottom cowling. Pushing the switch “ ” (up) trims the outboard motor up, and then tilts it up. Pushing the switch “ ”

(down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position.

For instructions on using the power trim and tilt switch, see page 66.

EWM01031

WARNING

Use the power trim and tilt switch located on the bottom cowling only when the boat is at a complete stop with the engine off.

Attempting to use this switch while the boat is moving could increase the risk of falling overboard and could distract the operator, increasing the risk of collision with another boat or an obstacle.


EMU30901

Variable trolling RPM switches

The trolling speed can be adjusted when the outboard motor is trolling. Press the “ ” switch to increase the trolling speed and press the “ ” switch to decrease the trolling speed.

1. Variable trolling RPM switch

TIP:

●

The trolling speed changes approximately

●

●

50 r/min each time a switch is pressed.

If the trolling speed has been adjusted, the engine returns to the normal trolling speed when the engine is stopped and restarted or when the engine speed exceeds approximately 3000 r/min.

For instructions on using the variable trolling RPM switches, see page 63.

31


Components

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 replaced to be sure steering is correct. Be sure you have tightened the bolt after adjusting the trim tab.

The trim tab should be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force.

If the boat tends to veer to the left (port side), turn the trim tab rear end to the port side “A” in the figure. If the boat tends to veer to the right (starboard side), turn the trim tab end to the starboard side “B” in the figure.

ECM00840

NOTICE

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

2

1. Trim tab

2. Bolt

A

B

ZMU03097

Bolt tightening torque:

F50, F60 18.0 Nm (1.8 kgf-m, 13 ft-lb)

F70, T50, T60 36.0 Nm

(3.6 kgf-m, 26 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

1. Trim tab

2. Bolt

3. Cap

B

3

2

A

ZMU02525

ZMU03595

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

32


Components an additional support device to secure it in the tilt position.

EMU26373

Cowling lock lever(s) (turn type)

To remove the engine top cowling, turn the cowling lock lever(s) and lift off the cowling.

When installing the cowling, check to be sure it fits properly in the rubber seal. Then lock the cowling again by returning the cowling lock lever(s) to the lock position.

1

ZMU07078

1. Flushing device

1

ZMU05093

1. Cowling lock lever(s)

EMU26462

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 73.

EMU33463

Fuel filter/Water separator

This engine has a combination fuel filter/water separator and associated alert system. If water separated from the fuel exceeds a specific volume, the alert device of Command Link Tachometer will activate.

ZMU05474

1

ZMU05095

1. Flushing device

ZMU07079

33


Components

Activation of alert device

●

The water separator-alert indicator of

●

Command Link Tachometer will blink.

The buzzer will sound intermittently only

● when the gear shift is in neutral.

If the alert system has activated, stop the engine and consult a Yamaha dealer immediately.

TIP:

Adding an in-line 10-micron fuel filter has been show to greatly reduce the chance of fuel contamination problems. Consult your dealer for information about Yamaha 10-micron fuel filters if your boat does not have one.

34


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.

Instruments and indicators

● 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.

1

2

3

5

6 7

4

ZMU03601

1. Tachometer

2. Trim meter

3. Hour meter

4. Low oil pressure-alert indicator

5. Overheat-alert indicator

6. Set button

7. Mode button

TIP:

The water separator and engine trouble-alert indicators only operate when the engine is equipped with the appropriate functions.

EMU36050

Tachometer

The tachometer displays engine speed in hundreds of revolutions per minute (r/min).

For example, if the tachometer display reads

“22” then the engine speed is 2200 r/min.

EMU26621

Trim meter

This meter shows the trim angle of your outboard motor.

●

Memorize the trim angles that work best for your boat under different conditions.

Adjust the trim angle to the desired using

ZMU01740

EMU26651

Hour meter

This meter shows the number of hours the engine has been run. It can be set to show the total number of hours or the number of hours for the current trip. The display can also be turned on and off.

ZMU01741

“

To change the display format, press the

” (mode) button. The display can show total hours or trip hours, or turn off.

To reset the trip hours, simultaneously press the “ ” (set) and “ ” (mode) buttons for more than 1 second while the trip hours are displayed. This resets the trip counter to 0

(zero).

The total number of hours the engine has been run cannot be reset.

35



EMU26524

Low oil pressure-alert indicator

If oil pressure drops too low, the alert indicator will start to blink. For further information, see page 47.

ECM00022

NOTICE

●

●

Do not continue to run the engine if the low oil pressure-alert indicator is on and the engine oil level is lower. Serious engine damage will occur.

The low oil pressure-alert indicator does not indicate the engine oil level.

Use the oil dipstick to check the remaining oil quantity. For further information, see page 53.

1


ZMU01737

EMU26602

Digital speedometer

This gauge shows the boat speed and other information.

1

ZMU01736


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

47.

ECM00052

NOTICE

Do not continue to run the engine if the overheat-alert indicator is on. Serious engine damage will occur.

1. Speedometer

2. Fuel gauge

3. Trip meter/clock/voltmeter

4. Alert indicator(s)

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.

36



1. Cap

2. Selector switch (for speed unit)

3. Selector switch (for fuel sensor)

EMU26713

Fuel gauge

Eight segments indicate the fuel level. When all segments are showing, the fuel tank is full.

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 “ ”

(set) and “ ” (mode) buttons at the same time.

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 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]

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.

37



5. Press the “ ” (mode) button until the desired minute is displayed.

6. Press the “ ” (set) button again to start the clock.

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.

The clock operates on battery power. Disconnecting 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

ZMU04578

1. Tachometer

2. Alert indicator(s)

EMU26506

Low oil pressure-alert indicator

If oil pressure drops too low, this indicator will flash. For further information, see page 47.

1. Fuel level-alert segment

38



ECM00022

NOTICE

●

●

Do not continue to run the engine if the low oil pressure-alert indicator is on and the engine oil level is lower. Serious engine damage will occur.

The low oil pressure-alert indicator does not indicate the engine oil level.

Use the oil dipstick to check the remaining oil quantity. For further information, see page 53.


1

ZMU06157

EMU26611

Analog trim meter

This gauge shows the trim angle of your outboard motor.

1

ZMU06156


EMU26574

Overheat-alert indicator

If the engine temperature rises too high, this indicator will flash. For further information on reading the indicator, see page 47.

ECM00052

NOTICE

Do not continue to run the engine if the overheat-alert indicator is on. Serious engine damage will occur.

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.

EMU31642

Command link multifunction meters

Command link multifunction meters have 6 kinds of meter units; tachometer unit (square or round types), speedometer unit (square type), speed & fuel meter unit (square or round types), and fuel management meter

(square type). The indicator system is slightly different between the round and square types. Check the model and type of your unit

39


Instruments and indicators carefully. This manual describes mainly the alert indicators. For more details on setting meters or changing indicator systems, see the attached operation manual.

EMU36103

Command link multifunction tachometers

The tachometer shows the engine revolutions per minute. It has functions of trim meter, adjusting trolling speed, cooling water/engine temperature display, battery voltage display, total hour/trip hour display, oil pressure display, water detection alert, engine trouble alert, and periodic maintenance notification. If the cooling water pressure sensor is installed, the unit can also show the cooling water pressure display. However, even if the cooling water pressure sensor is not installed, the cooling water pressure display can be shown by connecting an optional sensor to the unit. For the optional sensor, consult your Yamaha dealer. The tachometer unit is available in round or square types.

Check your tachometer unit type.

6

7

4

5

8

1

1. Tachometer

2. Trim meter

3. Multifunction display

4. Cooling water pressure

5. Cooling water/engine temperature

6. Water detection-alert indicator

7. Battery voltage

8. Oil pressure (4-stroke models)

2

3

ZMU05416

1 2

ZMU05417

1. Set button

2. Mode button

1 2

ZMU05415

1. Set button

2. Mode button

40


1 4 5 2

Instruments and indicators the trolling speed setting mode. For details, see the attached operation manual.

3

6 7 8 9 ZMU05418

1. Tachometer

2. Trim meter


4. Water detection-alert indicator

5. Engine trouble alert/maintenance indicator

6. Cooling water pressure

7. Oil pressure (4-stroke models)

8. Cooling water/engine temperature

9. Battery voltage

ZMU05931

EMU36190

Start-up checks

Place the remote control lever / gear shift lever in neutral and turn the main switch to

“ ” (on). After all the displays come on and the total hour display comes on, the gauge will change to normal operation. If the buzzer sounds and the water separator-alert indicator blinks, consult your Yamaha dealer immediately.

TIP:

“

To stop the buzzer, press the “ ” (set) or

” (mode) button.

EMU37690

Adjusting trolling speed

You can adjust the trolling speed randomly by increasing or decreasing it approximately

50 r/min. When in the trolling speed setting mode, the display switches to the normal display when the engine speed is increased

(within 3000 r/min) using the throttle. When the throttle is closed, the display returns to

ZMU06309

TIP:

●

●

●

Trolling is affected by currents and other operating conditions and may differ from the actual engine speed.

The default engine idle speed is reset automatically when the display is switched to the normal display. The default engine idle speed is also reset automatically when the engine is turned off or when the engine speed exceeds 3000 r/min.

When warming up a cold engine, the trolling speed cannot be decreased below the specified engine idle speed.

EMU36130

Low oil pressure-alert

If the engine oil pressure drops too low, the low oil pressure-alert indicator will start to blink, and the engine speed will automatically decrease to about 2000 r/min.

41



ZMU05430 ZMU05421

ZMU05431

Stop the engine immediately if the buzzer sounds and the low oil pressure-alert indicator blinks. Check the engine oil quantity and replenish oil if necessary. If the alert device has activated while the appropriate engine oil quantity is maintained, consult your

Yamaha dealer.

ECM01601

NOTICE

Do not continue to run the engine if the low oil pressure alert device has activated. Serious engine damage will occur.

EMU36221

Overheat alert

If the engine temperature rises too high while cruising, the overheat-alert indicator will start to blink. The engine speed will automatically decrease to about 2000 r/min.

ZMU05422

Stop the engine immediately if the buzzer sounds and the overheat alert device has activated. Check the cooling water inlet for clogging.

ECM01592

NOTICE

●

●

Do not continue to run the engine if the overheat-alert indicator blinks. Serious engine damage will occur.

Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected.

EMU36150

Water separator alert

This indicator will blink if water has accumulated in the water separator (fuel filter) while cruising. In such an event, stop the engine immediately and see page 95 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha

42


Instruments and indicators dealer immediately.

ZMU05426

ZMU05423

ZMU05424

ECM00910

NOTICE

Gasoline mixed with water could cause damage to the engine.

EMU36160

Engine trouble alert

This indicator will blink if the engine malfunctions while cruising. Get back to the port soon and consult a Yamaha dealer immediately.

ECM00920

NOTICE

In such an event, the engine will not operate properly. Consult a Yamaha dealer immediately.

EMU36170

Low battery voltage-alert

If the battery voltage drops, the low battery voltage-alert indicator and the battery voltage value will start to blink. Get back to the port soon if the low battery voltage-alert device has activated. For charging the battery, consult your Yamaha dealer.

ZMU05427

ZMU05425

43



1

ZMU05428

EMU31613

Command link multifunction speed & fuel meters

The speed & fuel meter unit shows the boat speed and has the functions of fuel meter, total fuel consumption display, fuel economy display, fuel flow display, and system voltage display. The chosen display is selected by using the “ ” (set) and “ ” (mode) buttons as described in this section. If the speed sensor is installed, the unit can also show the trip display. However, even if the speed sensor is not installed, the trip display can be shown by connecting an optional sensor to the unit. In addition, if optional sensors are connected to the unit, water surface temperature display, depth display, and clock will also be available. For the optional sensors, consult your Yamaha dealer.

The speed & fuel meter unit is available in round or square types. Check your speed & fuel meter unit type for operation information.

After the main switch is first turned on, all the displays come on as a test. After a few seconds, the gauge will change to normal operation.

For more information, see the operation manual originally supplied with the meter.

1. Set button

2. Mode button

3

1

1. Speedometer

2. Fuel meter


1

1. Set button

2. Mode button

2

ZMU05432

2

ZMU05433

2

ZMU05434

44



1 2

1 2

3

ZMU05435 ZMU05436

1. Speedometer

2. Fuel meter


1. Set button

2. Mode button

EMU31622

Command link multifunction speedometers

The speedometer unit shows the boat speed and has functions of fuel meter and system voltage display. The chosen display is selected by using the “ ” (set) and “ ”

(mode) buttons as described in this section.

In addition, the speedometer can show the desired unit of measurement such as km/h, mph, or knots. If the speed sensor is installed, the unit can also show the trip display. However, even if the speed sensor is not installed, the trip display can be shown by connecting an optional sensor to the unit.

In addition, if optional sensors are connected to the unit, water surface temperature display, depth display, and clock will also be available. For the optional sensors, consult your Yamaha dealer.

After the main switch is first turned on, all the displays come on as a test. After a few seconds, the gauge will change to normal operation.


3

1

1. Speedometer

2. Fuel meter


2

ZMU05437

EMU31632

Command link multifunction fuel management meters

The fuel management meter has the functions of fuel flow meter, total consumption display, fuel economy display, and remaining fuel display. The chosen display is selected by using the “ ” (set) and “ ” (mode) buttons as described in this section. For more information, see the operation manual originally supplied with the meter.

After the main switch is first turned on, all the displays come on as a test. After a few seconds, the gauge will change to normal oper-

45


Instruments and indicators ation.


1

1. Set button

2. Mode button

1

2

ZMU05438

2

ZMU05439

1. Fuel flow meter


46


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.

EMU2681C

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 de-

● crease to about 2000 r/min.

The overheat-alert indicator will light or blink.

ZMU05028

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.

ZMU03604

ZMU07103

●

The buzzer will sound (if equipped on the tiller handle, remote control box, or main switch panel).

EMU3016B

Low oil pressure alert

If the oil pressure drops too low, the alert device will activate.

●

The engine speed will automatically decrease to about 2000 r/min. If equipped

47


Engine control system with a low oil pressure-alert indicator, it will light or blink.

ZMU04994

If the alert system has activated, stop the engine as soon as it is safe to do so. Check the oil level and add oil as needed. If the oil level is correct and the alert device does not switch off, consult your Yamaha dealer.

ZMU07104

●

The buzzer will sound (if equipped on the tiller handle, remote control box, or main switch panel).

48


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

ZMU01760

EMU26933

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.

49


Installation

ZMU01762

ECM01634

NOTICE

●

●

Make sure that the idle hole is high enough to prevent water from entering the engine even if the boat is stationary with the maximum load.

Incorrect engine height or obstructions to the smooth flow of water (such as the design or condition of the boat, or accessories, such as transom ladders or depth finder transducers) can create airborne water spray while the boat is cruising. If the outboard motor is operated continuously in the presence of airborne water spray, enough water could enter the engine through the air intake opening in the top cowling to cause severe engine damage. Remove the cause of the airborne water spray.

50


EMU36381

First-time operation

EMU36391

Fill engine oil

The engine is shipped from the factory without engine oil. If your dealer did not fill the oil, you must fill it before starting the engine.

NOTICE: Check that the engine is filled with oil before first-time operation to avoid severe engine damage.

[ECM01781]

The engine is shipped with the following sticker, which should be removed after engine oil is filled for the first time. For more information on checking the engine oil level, see page 53.

ZMU01710

EMU30174

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. NOTICE: Failure to follow the break-in procedure could result in reduced engine life or even severe engine damage.

[ECM00801]

EMU27085

Procedure for 4-stroke models

Your new engine requires a period of 10 hours break-in to allow mating surfaces of moving parts to wear in evenly.

TIP:

Run the engine in the water, under load (in gear with a propeller installed) as follows.

Operation

For 10 hours for breaking in engine avoid extended idling, rough water and crowded areas.

1. For the first hour of operation:

Run the engine at varying speeds up to

2000 r/min or approximately half throttle.

2. For the second hour of operation:

Increase engine speed as much as necessary to put the boat on plane (but avoid full-throttle operation), then back off on the throttle while keeping the boat at a planing speed.

3. Remaining 8 hours:

Run the engine at any speed. However, avoid operating at full throttle for more than 5 minutes at a time.

4. After the first 10 hours:

Operate the engine normally.

EMU36400

Getting to know your boat

Different boats handle differently. Operate cautiously while you learn how your boat handles under different conditions and with different trim angles (see page 64).

EMU36413

Checks before starting engine

EWM01921

WARNING

If any item in “Checks before starting engine” is not working properly, have it inspected and repaired before operating the outboard motor. Otherwise, an accident could occur.

ECM00120

NOTICE

Do not start the engine out of water. Overheating and serious engine damage can occur.

EMU36421

Fuel level

Be sure you have plenty of fuel for your trip.

51


Operation

A good rule is to use 1/3 of your fuel to get to the destination, 1/3 to return, and to keep 1/3 as an emergency reserve. With the boat level on a trailer or in the water, turn the key to

“ ” (on) and check the fuel level. For fuel filling instructions, see page 55.

EMU36571

Remove the top cowling

For the following checks, remove the top cowling from the bottom cowling. To remove the top cowling, release the cowling lock lever and lift off the top cowling.

EMU36451

Check for fuel leaks

●

Check for fuel leaks or gasoline fumes in the boat.

●

Check for fuel leakage from the fuel system.

●

Check the fuel tank and fuel lines for cracks, swellings, or other damages.

EMU36471

Check the fuel filter

Check that the fuel filter is clean and free of water. If enough water to raise the float ring is found in the fuel, or if a significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer.

ZMU06085

EMU36442

Fuel system

EWM00060

WARNING

Gasoline and its vapors are highly flammable and explosive. Keep away from sparks, cigarettes, flames, or other sources of ignition.

EWM00910

WARNING

Leaking fuel can result in fire or explosion.

●

●

Check for fuel leakage regularly.

If any fuel leakage is found, the fuel system must be repaired by a qualified mechanic. Improper repairs can make the outboard unsafe to operate.

ZMU05474

ZMU07079

EMU36902

Controls

Tiller handle models:

●

Move the tiller handle fully to the left and

● right to make sure operation is smooth.

Turn the throttle grip from the fully closed to the fully open position. Make sure that it

52


● turns smoothly and that it completely returns to the fully closed position.

Look for loose or damaged connections of the throttle and shift cables.

Remote control models:

●

Turn the steering wheel full-right and fullleft. Make sure operation is smooth and unrestricted throughout the whole range

●

● with no binding or excessive free play.

Operate the throttle levers several times to 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.

1. Cord

2. Clip


Operation

ZMU07105

EMU36483

Engine shut-off cord (lanyard)

Inspect the engine shut-off cord and clip for damage, such as cuts, breaks, and wear.

1. Cord

2. Clip


EMU37052

Engine oil

1. Put the outboard motor in an upright position (not tilted). NOTICE: If the motor is not level, the oil level indicated on the dipstick may not be accurate.

[ECM01790]

2. Remove oil dipstick and wipe it clean.

3. Insert the dipstick and remove it again.

Be sure to completely insert the dipstick into the dipstick guide, otherwise the oil level measurement will be incorrect.

4. Check the oil level using the dipstick to be sure the level falls between the upper

53


Operation level mark and lower level mark. Consult your Yamaha dealer if the oil level is out of specified level or if it appears milky or dirty.

connected, cooling water can leak out and the engine can overheat during operation.

[ECM01801]

2

1

1

ZMU06056

1. Oil dipstick

1 3 2

ZMU05089

1. Fitting

2. Flushing device

1 2

ZMU05091

ZMU07080

1. Lower level mark

2. Oil dipstick

3. Upper level mark

1. Fitting

2. Flushing device

EMU27153

Engine

●

●

●

●

Check the engine and engine mounting.

Look for loose or damaged fasteners.

Check the propeller for damage.

Check for engine oil leaks.

EMU36492

Flushing device

Check that the flushing device’s garden hose connector is securely screwed on to the fitting on the bottom cowling. NOTICE: If the garden hose connector is not properly

EMU36954

Install top cowling

1. Be sure that the cowling lock lever is released.

2. Be sure that the rubber seal is seated all the way around the top cowling.

3. Place the top cowling on the bottom cowling.

4. Check to be sure the rubber seal is seated correctly between the top cowling and the bottom cowling.

5. Move the lever to lock the cowling as

54

6C1-9-19.book 55 ページ２０１０年２月１７日　水曜日　午後１時３８分 shown. NOTICE: If the top cowling is not installed correctly, water spray under the top cowling can damage the engine, or the top cowling can blow off at high speeds.

[ECM01991]

Operation motor before performing this check.

1. Check the power trim and tilt unit for any sign of oil leaks.

2. Operate each of the power trim and tilt switches to check that all switches work.

3. Tilt the outboard motor up and check that the trim and tilt rod is pushed out completely.

1

ZMU06110

After installing, check the fitting of the top cowling by pushing it with both hands. If the top cowling is loose, have it repaired by your

Yamaha dealer.

ZMU03662

EMU34581

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

1. Trim and tilt rod

4. Check that the trim and tilt rod is free of corrosion or other flaws.

5. Tilt the outboard motor down. Check that the trim and tilt rod operates smoothly.

EMU36582

Battery

Check that the battery is in good condition, and fully charged. Check that the battery connections are clean, secure and covered by insulating covers. The electrical contacts of the battery and cables must be clean and properly connected or the battery will not start the engine.

Refer to the battery manufacturer’s instructions for checks for your particular battery.

EMU27438

Filling fuel

EWM01830

WARNING

●

Gasoline and its vapors are highly flammable and explosive. Always refuel ac-

55


Operation

● cording 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. Be sure the engine is stopped.

2. Disconnect the fuel line from the fuel tank and tighten the air vent screw on the fuel tank cap.

5. Do not smoke and keep away from sparks, flames, static electric discharge, or other sources of ignition.

6. If you use a portable container to store and dispense fuel, use only an approved

GASOLINE container.

7. Touch the fuel nozzle to the filler opening or funnel to help prevent electrostatic sparks.

8. Fill the fuel tank, but do not overfill.

WARNING! Do not overfill. Otherwise fuel can expand and overflow if the temperature increases.

[EWM02610]

Fuel tank capacity:

24 L (6.34 US gal, 5.28 Imp.gal)

ZMU06598

ZMU02301

3. Remove the portable tank from the boat.

4. Be sure you are in a well-ventilated outdoor area, either securely moored or trailered.

ZMU02834

9. Tighten the filler cap securely.

10. Wipe up any spilled gasoline immediately with dry rags. Dispose rags properly according to local laws or regulations.

EMU27452

Operating engine

EWM00420

WARNING

●

●

Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions.

Be sure there are no swimmers in the water near you.

When the air vent screw is loosened, gasoline vapor will be released. Gaso-

56


● line is highly flammable, and its vapors are flammable and explosive. Refrain from smoking, and keep away from open flames and sparks while loosening the air vent screw.

This product emits exhaust gases which contain carbon monoxide, a colorless, odorless gas which could cause brain damage or death when inhaled.

Symptoms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.

EMU27468

Sending fuel (portable tank)

1. If there is an air vent screw on the fuel tank cap, loosen it 2 or 3 turns.

Operation

ZMU03679

ZMU07081

ZMU02295

2. If there is a fuel joint on the motor, align the fuel joint on the fuel line with the fuel joint on the motor and firmly connect the fuel line to the joint while pinching the joint. Then firmly connect the other end of the fuel line to the joint on the fuel tank.

ZMU02024

TIP:

Wipe up any spilled gasoline immediately with dry rags. Dispose rags properly according to local laws or regulations.

3. Squeeze the primer pump, with the arrow pointing up, until you feel it become firm. During engine operation place the tank horizontally, otherwise fuel cannot be drawn from the fuel tank.

57


Operation

1. Place the gear shift lever in neutral.

1. Arrow

EMU27493

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.

EMU27595

Electric start / prime start models

EWM01840

WARNING

●

●

Failure to attached engine shut-off cord could result in a runaway boat if operator is ejected. Attach the engine shutoff cord to a secure place on your clothing, or your arm or leg while operating.

Do not attach the cord to clothing that could tear loose. Do not route the cord where it could become entangled, preventing it from functioning.


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. Place the throttle grip in the “

(start) position. After the engine starts,

” return the throttle to the fully closed position.

58


4. Turn the main switch to “ ” (start), and hold it for a maximum of 5 seconds.

Operation

●

●

● page 61.

If the engine is warm and fails to start, open the throttle slightly and try to start the engine again. If the engine still fails to start, see page 92.

EMU27664

Electric start and remote control models

EWM01840

WARNING

Failure to attached engine shut-off cord could result in a runaway boat if operator is ejected. Attach the engine shutoff cord to a secure place on your clothing, or your arm or leg while operating.



1. Place the remote control lever in neutral.

5. Immediately after the engine starts, release the main switch and allow it to return to “ ” (on). NOTICE: Never turn the main switch to “ ” (start) while the engine is running. Do not keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more than 5 seconds, the battery will be quickly discharged, thus making it impossible to start the engine. The starter can also be damaged. If the engine will not start after 5 seconds of cranking, return the main switch to

“ ” (on), wait 10 seconds, then crank the engine again.

[ECM00192]

TIP:

●

When the engine is cold, it needs to be warmed up. For further information, see

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 se-

59


Operation cure 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).

4. Turn the main switch to “ ” (start), and hold it for a maximum of 5 seconds.

5. Immediately after the engine starts, release the main switch and allow it to return to “ ” (on). NOTICE: Never turn the main switch to “ ” (start) while the engine is running. Do not keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more than 5 seconds, the battery will be quickly discharged, thus making it impossible to start the engine. The starter can also be damaged. If the engine will not start after 5 seconds of cranking, return the main switch to

TIP:

“ ” (on), wait 10 seconds, then crank the engine again.

[ECM00192]

●

●

When the engine is cold, it needs to be warmed up. For further information, see page 61.

If the engine is warm and fails to start, open the throttle slightly and try to start the engine again. If the engine still fails to start, see page 92.

EMU36510

Checks after starting engine

EMU36522

Cooling water

Check for a steady flow of water from the cooling water pilot hole. A continuous flow of water from the pilot hole indicates that the water pump is pumping water through the cooling water passages. If the cooling water passages are frozen, it may take a while for water to start flowing out of the pilot hole.

ECM01810

NOTICE

If water is not flowing out of the pilot hole at all times while the engine is running, overheating and serious damage could occur. Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked. Consult your Yamaha dealer if the problem cannot be located and corrected.

60


ZMU05092

EMU27670

Warming up engine

EMU27716

Manual start and electric start models

1. After starting the engine, allow it to idle for 3 minutes to warm up. Failure to do so will shorten engine life.

2. Be sure the low oil pressure-alert indicator goes off after starting the engine.

NOTICE: If the low oil pressure-alert indicator blinks after the engine starts, stop the engine. Otherwise, serious engine damage could occur.

Check the oil level and add engine oil if necessary. Consult your Yamaha dealer if the cause for the low oil pressure alert cannot be found.

[ECM01831]

EMU36531

Checks after engine warm up

EMU36541

Shifting

While the boat is tightly moored, and without applying throttle, confirm that the engine shifts smoothly into forward and reverse, and back to neutral.

EMU36980

Stop switches

●

Turn the main switch to “ ”, or press the engine stop button and make sure the engine stops.

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.

EMU33492

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).


2. Move the remote control lever / gear shift lever firmly and crisply forward (for forward gear) or backward (for reverse gear) [about 35 (a detent can felt) for remote control models].

61


Operation

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 / gear shift lever firmly and crisply into the neutral position.

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 im-

62


● pact the steering wheel or other parts of the boat. This could increase the risk of serious injury. It could also damage the shift mechanism.

Do not shift into reverse while traveling at planing speeds. Loss of control, boat swamping, or damage to the boat could occur.

The boat is not equipped with a separate braking system. Water resistance stops it after the throttle lever is moved back to idle.

The stopping distance varies depending on gross weight, water surface conditions, and wind direction.

EMU30880

Trolling

EMU30890

Adjusting trolling speed

The trolling speed on outboard motors equipped with the variable trolling RPM switches can be adjusted approximately 50 r/min with each press of a switch.

Operation

●

50 r/min each time a switch is pressed.

If the trolling speed has been adjusted, the engine returns to the normal trolling speed when the engine is stopped and restarted or when the engine speed exceeds approximately 3000 r/min.

EMU27821

Stopping engine

Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stopping the engine immediately after operating at high speed is not recommended.

EMU27847

Procedure

1. Push and hold the engine stop button or turn the main switch to “ ” (off).

1. “ ” switch

2. “ ” switch

To increase the trolling speed, press the “ ” switch.

To decrease the trolling speed, press the

“ ” switch.

TIP:

●

The trolling speed changes approximately

63


Operation

2. After stopping the engine, disconnect the fuel line if there is a fuel joint on the outboard motor.

ZMU03632

ZMU07082

3. Tighten the air vent screw on the fuel tank cap (if equipped).

ZMU02301

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.

64


Operation switch while the boat is moving.

Adjust the outboard motor trim angle using the power trim and tilt switch.


1

ZMU03633

1. Trim operating angle

1

EMU27885

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

UP

DN


ZMU03634


To raise the bow (trim-out), press the switch

“ ” (up).

65


Operation

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.

EMU27912

Adjusting boat trim

When the boat is on plane, a bow-up attitude results in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees. With the bow up, the boat may have a greater tendency to steer to one side or the other. Compensate for this as you steer. When the bow of the boat is down, it is easier to accelerate from a standing start onto plane.

Bow Down

Too much trim-in causes the boat to “plow” through the water, decreasing fuel economy and making it hard to increase speed. Operating with excessive trim-in at higher speeds also makes the boat unstable. Resistance at the bow is greatly increased, heightening the danger of “bow steering” and making operation difficult and dangerous.

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.

TIP:

Depending on the type of boat, the outboard motor trim angle may have little effect on the trim of the boat when operating.

EMU27935

Tilting up and down

If the engine will be stopped for some time or if the boat is moored in shallows, the outboard motor should be tilted up to protect the propeller and lower casing from damage by collision with obstructions, and also to reduce salt corrosion.

66


Operation

EWM00222

WARNING

Make sure that no one is near the outboard motor when tilting the outboard motor up or down. Otherwise, body parts could be crushed between the outboard motor and the clamp bracket.

EWM00250

WARNING

Leaking fuel is a fire hazard. If there is a fuel joint on the outboard motor, disconnect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes. Otherwise fuel may leak.

ECM00241

NOTICE

●

●

Before tilting the outboard motor, stop the engine by following the procedure on page 63. 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.

EMU32724

Procedure for tilting up (power trim and tilt models)

1. Place the remote control lever / gear shift lever in neutral.

2. Press the power trim and tilt switch “ ”

(up) until the outboard motor has tilted up completely.

UP

N

ZMU03639

ZMU03196

67


Operation

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 71.

[ECM01641] and tilt switch “ ” (down) to retract the trim rods. NOTICE: Make sure that the trim rods retracts completely during mooring. This protects the rods from marine growth and corrosion, which could damage the power trim and tilt mechanism.

[ECM00252]

EMU33121

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.

ZMU03644

3. Push the power trim and tilt switch “ ”

(down) to lower the outboard motor to the desired position.

”

DN

UP

DN

ZMU01936

ZMU03640

4. Models equipped with trim rods: Once the outboard motor is supported with the tilt support lever, press the power trim

68


Operation

DN

ZMU03645

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.

EMU32913

Procedure for power trim and tilt models

1. Place the remote control lever / gear shift lever in neutral.

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]

UP

UP

DN

ZMU01935

69


Operation

UP

ZMU03650

3. To return the outboard motor to the normal running position, press the power trim and tilt switch and slowly tilt the outboard motor down.

EMU35391

Cruising in other conditions

Cruising in salt water

After operating in salt water, flush the cooling water passages with fresh water to prevent them from becoming clogged. Also rinse the outside of the outboard motor with fresh water.

Cruising in muddy, turbid, or acidic water

Water in some areas can be acidic or with a lot of sediment in it, such as muddy or turbid

(cloudy) water. After operating in such water, flush the cooling passages with fresh water to prevent corrosion. Also rinse the outside of the outboard motor with fresh water.

70


EMU41510

Transporting and storing outboard motor

EWM02620

WARNING

●

●

●

●

●

USE CARE when transporting fuel tank, whether in a boat or car.

DO NOT fill fuel container to maximum capacity. Gasoline will expand considerably as it warms up and can build up pressure in the fuel container. This can cause fuel leakage and a potential fire hazard.

Leaking fuel is a fire hazard. When transporting and storing the outboard motor, disconnect the fuel line from the outboard motor to prevent fuel from leaking.

Never get under the outboard motor while it is tilted. Severe injury could occur if the outboard motor accidentally falls.

Do not use the tilt support lever or knob when trailering the boat. The outboard motor could shake loose from the tilt support and fall. If the outboard motor cannot be trailered in the normal running position, use an additional support device to secure it in the tilt position.

When storing or transporting the outboard motor, make sure to follow the procedure listed below.

Maintenance

●

●

●

Disconnect the fuel line from the outboard motor.

Tighten the fuel tank cap and its air vent screw.

When the outboard motor is tilted prolonged time for mooring or trailering the boat, disconnect the fuel line from the outboard motor. Tighten the fuel tank cap and its air vent screw.

The outboard motor should be transported and stored in the normal running position. If there is insufficient road clearance in this position, then trailer the outboard motor in the tilt position using a motor support device such as a transom saver bar. Consult your

Yamaha dealer for further details.

ZMU03659

EMU28280

Storing outboard motor

When storing your Yamaha outboard motor for prolonged periods of time (2 months or longer), several important procedures must be performed to prevent excessive damage.

It is advisable to have your outboard motor serviced by an authorized Yamaha dealer prior to storage. However, you, the owner, with a minimum of tools, can perform the following procedures.

ECM01080

NOTICE

●

To prevent problems which can be caused by oil entering the cylinder from

71


Maintenance

●

● the sump, keep the outboard motor in the attitude shown when transporting and storing it. If storing or transporting the outboard motor on its side (not upright), put it on a cushion after draining the engine oil.

Do not place the outboard motor on its side before the cooling water has drained from it completely, otherwise water may enter the cylinder through the exhaust port and cause engine trouble.

Store the outboard motor in a dry, wellventilated place, not in direct sunlight.

EMU28305

Procedure

EMU30007

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 75.

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

Stabilizer” eliminates the need to drain the fuel system. Consult your Yamaha dealer or other qualified mechanic if the fuel system is to be drained instead.

3. Remove the top cowling and propeller.

4. Install the flushing attachment over the cooling water inlet. NOTICE: Do not run the engine without supplying it with cooling water. Either the engine water pump will be damaged or the engine will be damaged from overheating.

Before starting the engine, be sure to supply water to the cooling water passages. Avoid running the outboard motor at high speed while on the flushing attachment, otherwise overheating could occur.

[ECM02000]

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]

TIP:

●

When using the flushing attachment, maintain adequate water pressure and a steady

● water flow.

If the overheat alert device is activated, turn the engine off, and consult your

Yamaha dealer.

6. Run the engine at a fast idle for a few minutes in neutral position while supplying fresh water.

7. Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine

Fogging Oil” alternately into the intake

72


Maintenance silencer or the fogging hole of the silencer cover, if equipped. When properly done, the engine will smoke excessively and almost stall.

ZMU07083

8. Remove the flushing attachment and wipe off any excess water.

9. Install the top cowling and propeller.

10. Drain the cooling water completely out of the motor. Clean the body thoroughly.

TIP:

A flushing attachment is available from your

Yamaha dealer.

EMU28402

Lubrication

1. Install the spark plug(s) and torque to proper specification. For information on spark plug installation, see page 82.

2. Change the gear oil. For instructions, see page 87. Inspect the oil for the presence of water that indicates a leaky seal.

Seal replacement should be performed by an authorized Yamaha dealer prior to use.

3. Grease all grease fittings. For further details, see page 80.

TIP:

For long-term storage, fogging the engine with oil is recommended. Contact your

Yamaha dealer for information about fogging oil and procedures for your engine.

EMU30266

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”. NOTICE:

Do not spray when the engine is running. Also, do not spray near the silencer or into the engine. Otherwise the engine could be damaged.

[ECM01402]

3. Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax”.

EMU28444

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.

73


Maintenance

1 1

2

3 2 3

1. Fitting

2. Garden hose adapter

3. Garden hose connector

ZMU05096 ZMU07087

1. Fitting

2. Garden hose adapter

3. Garden hose connector

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.

NOTICE: Do not leave the garden hose connector loose on the bottom cowling fitting or let the hose hang free during normal operation. Water will leak out of the connector instead

74


TIP:

of cooling the engine, which can cause serious overheating. Be sure the connector is tightened securely on the fitting after flushing the engine.

[ECM00541]

●

●

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 71.

EMU28451

Cleaning the outboard motor

After use, wash the exterior of the outboard motor with fresh water. Flush the cooling system with fresh water.

ZMU02550

EMU28461

Checking painted surface of outboard motor

Check the outboard motor for scratches, nicks, or flaking paint. Areas with damaged paint are more likely to corrode. If necessary, clean and paint the areas. A touch-up paint is available from your Yamaha dealer.

EMU2848A

Periodic maintenance

EWM01871

WARNING

These procedures require mechanical skills, tools, and supplies. If you do not

Maintenance 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 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

75


Maintenance genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and passengers. Yamaha genuine parts and accessories are available from your Yamaha dealer.

EMU35521

Maintenance interval guidelines

The service intervals provided in the Maintenance Chart were developed based upon

“typical” use that includes operating at varied speeds, with sufficient time for engine warm up and cool-down, a medium to light load, and an average cruising speed near the

3000 to 4000 rpm range. As with any engine, however, if your normal operating conditions are different, you should consider service more often than shown, especially how often you change your engine oil and gear oil. Examples might include extended wide-openthrottle use or long periods of trolling or idling, carrying heavy loads, or frequent starting and stopping or shifting. More frequent maintenance will often pay off many times over in increased engine life and greater owner satisfaction. Consult your Yamaha dealer for additional maintenance recommendations.

76


Maintenance

EMU34446

Maintenance chart 1

TIP:

●

Refer to the sections in this chapter for explanations of each owner-specific action.

●

●

The maintenance cycle on these charts assume usage of 100 hours per year and regular flushing of the cooling water passages. Maintenance frequency should be adjusted when operating the engine under adverse conditions such as extended trolling.

Disassembly or repairs may be necessary depending on the outcome of maintenance

● checks.

Expendable or consumable parts and lubricants will lose their effectiveness over time and through normal usage regardless of the warranty period.

When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine should

● be flushed with clean water after each use.

The “ ” symbol indicates the check-ups which you may carry out yourself.

The “ ” symbol indicates work to be carried out by your Yamaha dealer.

Item Actions

Initial

20 hours

(3 months)

100 hours

(1 year)

Every

300 hours

(3 years)

500 hours

(5 years)

Inspection or replacement as necessary


Anode(s) (external)

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

Replacement

Inspection

Fill, charging or replacing as necessary


Inspection Cowling lock lever

Engine starting condition/noise

Engine idle speed/noise

Engine oil

Engine oil filter (cartridge)

Inspection

Inspection

Replacement

Replacement

77


Maintenance

Item Actions

Fuel filter (can be disassembled)

Fuel line (High pressure)

Fuel line (High pressure)

Fuel line (Low pressure)

Fuel line (Low pressure)

Fuel pump


Inspection


Inspection



Fuel/engine oil leakage Inspection

Gear oil Replacement

Greasing points

Impeller/water pump housing

Impeller/water pump housing

Greasing


Replacement

Power trim and tilt unit Inspection

Propeller/propeller nut/cotter pin

Shift link/shift cable

Spark plug(s)


Inspection, adjustment or replacement as necessary



Spark plug caps/spark plug wires

Water from the cooling water pilot hole

Throttle link/throttle cable/throttle pick-up timing

Thermostat

Timing belt

Valve clearance

Inspection

Inspection, adjustment or replacement as necessary



Inspection and adjustment

Initial

20 hours

(3 months)

100 hours

(1 year)

Every

300 hours

(3 years)

500 hours

(5 years)

78


Item Actions

Cooling water inlet Inspection

Main switch/stop switch


Wire harness connections/wire coupler connections


(Yamaha) Meter/gauge Inspection

Fuel tank (Yamaha portable tank)

Inspection and cleaning as necessary

EMU34451

Maintenance chart 2

Item Actions

Exhaust guide/exhaust manifold

Timing belt


Replacement

Maintenance

Initial

20 hours

(3 months)

100 hours

(1 year)

Every

300 hours

(3 years)

500 hours

(5 years)

Every

1000 hours

79


Maintenance

EMU28933

Greasing

Yamaha marine grease (Water resistant grease)

F50, F60, T50, T60

ZMU05087

80


Maintenance

F70A

ZMU07089

81


Maintenance

F70HA

EMU28957

Cleaning and adjusting spark plug

The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine. For example, if the center electrode porcelain is very white, this could indicate an intake air leak or carburetion problem in that cylinder. Do not attempt to diagnose any problems yourself.

Instead, take the outboard motor to a

Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.

1. Remove the spark plug caps from the spark plugs.

2. Remove the spark plug. If electrode erosion becomes excessive, or if carbon

ZMU07088 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:

F50TR DPR6EB-9

F60TR DPR6EB-9

F70A LKR7E

T50TR DPR6EB-9

T60TR DPR6EB-9

3. Be sure to use the specified spark plug, otherwise the engine may not operate properly. Before fitting the spark plug,

82


Maintenance measure the electrode gap with a wire thickness gauge; replace it if out of specification.

1. Spark plug gap

2. Spark plug part number

3. Spark plug I.D. mark (NGK)

Spark plug gap:

0.8–0.9 mm (0.031–0.035 in)

4. When fitting the plug, wipe off any dirt from the threads, and then screw it in to the correct torque.

Spark plug torque:

F50TR 18.0 Nm (1.84 kgf-m, 13.3 ft-lb)

F60TR 18.0 Nm (1.84 kgf-m, 13.3 ft-lb)

F70A 17.0 Nm (1.73 kgf-m, 12.5 ft-lb)

T50TR 18.0 Nm (1.84 kgf-m, 13.3 ft-lb)

T60TR 18.0 Nm (1.84 kgf-m, 13.3 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.

EMU29044

Inspecting idle speed

EWM00451

WARNING

●

●

Do not touch or remove electrical parts when starting or during operation.

Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine is running.

ECM00490

NOTICE

This procedure must be performed while the outboard motor is in the water. A flushing attachment or test tank can be used.

If the boat is not equipped with a tachometer for the outboard motor, use a diagnostic tachometer for this procedure. Results may vary depending on whether testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water.

1. Start the engine and allow it to warm up fully in neutral until it is running smoothly.

2. Once the engine has warmed up, verify whether the idle speed is set to specification. For idle speed specifications, see page 14. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer or other qualified mechanic.

EMU37494

Changing engine oil

ECM01710

NOTICE

Change the engine oil after the first 20 hours of operation or 3 months, and every 100 hours or at 1-year intervals thereafter. Otherwise the engine will wear quickly.

83


Maintenance

The engine oil should be extracted with an oil changer.

1. Put the outboard motor in an upright position (not tilted). NOTICE: If the outboard motor is not level, the oil level indicated on the oil dipstick may not be accurate.

[ECM01861] oil level is above the upper level mark, drain until the level meets the specified capacity.

[ECM01850]

1

ZMU05101

1. Oil filler cap

ZMU03659

2. Start the engine. Warm it up and keep the idle speed for 5-10 minutes.

3. Stop the engine and leave it for 5-10 minutes.

4. Remove the top cowling.

5. Remove the oil filler cap. Pull out the dipstick and use the oil changer to extract the oil completely.

1

ZMU07091

1. Oil filler cap

1

ZMU06187

1. Oil changer

6. Add the correct amount of oil through the filler hole. Put back the filler cap and the dipstick. NOTICE: Overfilling the oil could cause leakage or damage. If the


4-stroke outboard motor oil

Replacement engine oil quantity (at periodic maintenance):

Without oil filter replacement:

1.9 L (2.01 US qt, 1.67 Imp.qt)

With oil filter replacement:

2.1 L (2.22 US qt, 1.85 Imp.qt)

7. Leave the outboard motor for 5-10 minutes.

8. Remove oil dipstick and wipe it clean.

9. Insert the dipstick and remove it again.

Be sure to completely insert the dipstick

84


Maintenance into the dipstick guide, otherwise the oil level measurement will be incorrect.

10. Recheck the oil level using the dipstick to be sure the level falls between the upper and lower marks. Consult your

Yamaha dealer if the oil level is out of specified level.

EMU29114

Inspecting wiring and connectors

●

●

Inspect that each connector is engaged securely.

Inspect that each ground lead is properly secured.

1 3 2

ZMU07106

ZMU05091

1. Lower level mark

2. Oil dipstick

3. Upper level mark

11. Start the engine and make sure that the low oil pressure-alert indicator remains off. Also, make sure that there are no oil leaks. NOTICE: If the low oil pressurealert indicator comes on or if there are oil leaks, stop the engine and find the cause. Continued operation with a problem could cause severe engine damage. Consult your Yamaha dealer if the problem cannot be located and corrected.

[ECM01622]

12. Dispose of used oil according to local regulations.

TIP:

●

For more information on the disposal of

● used oil, consult your Yamaha dealer.

Change the oil more often when operating the engine under adverse conditions such as extended trolling.

ZMU07107

EMU32112

Checking propeller

EWM01881

WARNING

You could be seriously injured if the engine accidentally starts when you are near the propeller. Before inspecting, removing, or installing the propeller, place the shift control in neutral, turn the main switch to “ ” (off) and remove the key, and remove the clip from the engine shutoff switch. Turn off the battery cut-off switch if your boat has one.

Do not use your hand to hold the propeller when loosening or tightening the propeller

85


Maintenance nut. Put a wood block between the anti-cavitation plate and the propeller to prevent the propeller from turning.

not use your hand to hold the propeller when loosening the propeller nut.

[EWM01890]

ZMU01897

Checkpoints

●

Check each of the propeller blades for erosion from cavitation or ventilation, or other damage.

●

●

●

Check the propeller shaft for damage.

Check the splines for wear or damage.

Check for fish line tangled around the propeller shaft.

●

Check the propeller shaft oil seal for damage.

EMU30662

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

1. Cotter pin

2. Propeller nut

3. Washer

4. Spacer

5. Propeller

6. Thrust washer

3. Remove the propeller, washer (if equipped), and thrust washer.

EMU30672

Installing propeller

EMU29234

Spline models

ECM00501

NOTICE

Make sure to use a new cotter pin and bend the ends over securely. Otherwise, the propeller could come off during operation and be lost.

1. Apply Yamaha marine grease or a corrosion resistant grease to the propeller shaft.

2. Install the spacer (if equipped), thrust washer, washer (if equipped), and propeller on the propeller shaft. NOTICE:

Make sure to install the thrust washer before installing the propeller. Otherwise, the lower case and propeller boss could be damaged.

[ECM01881]

86


3. Install the spacer (if equipped) and the washer. Tighten the propeller nut to the specified torque.

Propeller nut tightening torque:

F50TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)

F60TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)

F70A 34.0 Nm (3.47 kgf-m, 25.1 ft-lb)

T50TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)

T60TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)

4. Align the propeller nut with the propeller shaft hole. Insert a new cotter pin in the hole and bend the cotter pin ends.

NOTICE: Do not reuse the cotter pin.

Otherwise, the propeller can come off during operation.

[ECM01891]

Maintenance 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

ZMU02063

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.

EMU29289

Changing gear oil

EWM00800

WARNING

●

●

Be sure the outboard motor is securely fastened to the transom or a stable 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

1. Gear oil drain screw

2. Oil level plug

TIP:

●

If a magnetic gear oil drain screw is equipped, remove all metal particles from the screw before installing it.

Always use new gaskets. Do not reuse the

● removed gaskets.

4. Remove the oil level plug and gasket to allow the oil to drain completely.

NOTICE: Check the used gear oil after it has been drained. If the gear oil is milky or contains water or a large amount of metal particles, the gear case may be damaged. Have a

Yamaha dealer check and repair the

87


Maintenance

TIP:

outboard motor.

[ECM00713]

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:

F50TR 0.430 L

(0.455 US qt, 0.378 Imp.qt)

F60TR 0.430 L

(0.455 US qt, 0.378 Imp.qt)

F70A 0.670 L

(0.708 US qt, 0.590 Imp.qt)

T50TR 0.670 L

(0.708 US qt, 0.590 Imp.qt)

T60TR 0.670 L

(0.708 US qt, 0.590 Imp.qt)

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)

EMU29302

Cleaning fuel tank

EWM00920

WARNING

Gasoline is highly flammable, and its vapors are flammable and explosive.

●

If you have any question about properly doing this procedure, consult your

●

Yamaha dealer.

Keep away from sparks, cigarettes, flames, or other sources of ignition when cleaning the fuel tank.

●

●

●

●

Remove the fuel tank from the boat before cleaning it. Work only outdoors in an area with good ventilation.

Wipe up any spilled fuel immediately.

Reassemble the fuel tank carefully. Improper assembly can result in a fuel leak, which could result in a fire or explosion hazard.

Dispose of old gasoline according to local regulations.

1. Empty the fuel tank into an approved container.

2. Pour a small amount of suitable solvent into the tank. Install the cap and shake the tank. Drain the solvent completely.

3. Remove the screws holding the fuel joint assembly. Pull the assembly out of the tank.

88


Maintenance

ZMU02820

ZMU02324

4. Clean the filter (located on the end of the suction pipe) in a suitable cleaning solvent. Allow the filter to dry.

5. Replace the gasket with a new one. Reinstall the fuel joint assembly and tighten the screws firmly.

EMU29313

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.

ZMU04721

ZMU04722

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.

EMU29323

Checking battery (for electric start models)

EWM01902

WARNING

Battery electrolyte is poisonous and caustic, and batteries generate explosive hydrogen gas. When working near the battery:

●

●

Wear protective eye gear and rubber gloves.

Do not smoke or bring any other source of ignition near the battery.

The procedure for checking the battery varies for different batteries. This procedure

89


Maintenance 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.

wise, the electrical parts could be damaged.

Connect the RED cable to the POSITIVE (+) terminal first. Then connect the BLACK cable to the NEGATIVE (-) terminal.

Using a single battery

Connect both red cables to the (+) terminal.

EWM00590

WARNING

Do not leave cable unconnected. If it accidentally contacts the NEGATIVE (-) terminal of the battery, there will be a short circuit. Electric system damage and a fire could result.

1

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 charging, 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.

[EWM01912]

EMU29343

Connecting the battery

EWM00572

WARNING

Mount the battery holder securely in a dry, well-ventilated, vibration-free location in the boat. Install a fully charged battery in the holder.

ECM01124

NOTICE

Do not reverse the battery cables. Other-

3 2

ZMU01811

1. Red cable

2. Black cable

3. Battery

Using an accessory battery

Use a connecting cable between the (-) terminals of the starting battery and accessory battery. See the illustrations of the wiring connections. This cable must be made from wire equivalent to the starting battery cable.

EWM00600

WARNING

Use of smaller wire could lead to a fire.

TIP:

Consult your Yamaha dealer about correct wiring if a battery selector switch is desired.

90


Maintenance

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.

91


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 58.

Q. Has fuel pump malfunctioned?

A. Have serviced by a Yamaha dealer.

Starter will not operate.

Q. Is battery capacity weak or low?

A. Check battery condition. Use battery of recommended capacity.

Q. Are spark plug(s) fouled or of incorrect type?

A. Inspect spark plug(s). Clean or replace with recommended type.

Q. Are spark plug cap(s) fitted incorrectly?

A. Check and re-fit cap(s).

Q. 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?


Q. Are starter components faulty?


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?


Engine will not start (starter operates).

Q. Is fuel tank empty?


Engine idles irregularly or stalls.



Q. Is fuel contaminated or stale?

92



A. Return to home position.

Q. Is fuel system obstructed?

A. Check for pinched or kinked fuel line or other obstructions in fuel system.



Q. Is motor angle too high?

A. Return to normal operating position.

Q. Is carburetor clogged?




Q. Is fuel joint connection incorrect?

A. Connect correctly.

Q. Have ignition parts failed?


Q. Is throttle valve adjustment incorrect?


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 as specified.

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 engine oil level low?

A. Fill oil tank with specified engine oil.

Q. Is heat range of spark plug incorrect?

A. Inspect spark plug and replace it with recommended type.

Q. Is thermostat faulty or clogged?


Q. Are carburetor adjustments incorrect?


Q. Is fuel pump damaged?


Q. Is air vent screw on fuel tank closed?

A. Open air vent screw.

Q. Is choke knob pulled out?


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?


Q. Has oil feed/injection pump malfunctioned?


93



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?


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.



Engine power loss.

Q. Is propeller damaged?

A. Have propeller repaired or replaced.



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. Have electrical parts failed?


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.


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?




Q. Is air vent screw closed?

A. Open the air vent screw.

Q. Is fuel pump damaged?


Q. Are weeds or other foreign matter tangled

94


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.

Trouble Recovery 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?


Q. Is engine not responding properly to shift lever position?


Engine vibrates excessively.

Q. Is propeller damaged?

A. Have propeller repaired or replaced.

Q. Is propeller shaft damaged?


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

EMU29441

Impact damage

EWM00870

WARNING

The outboard motor can be seriously damaged by a collision while operating or

1. Stop the engine immediately.

2. Check the control system and all components for damage. Also, check the boat for damage.

3. Whether damage is found or not, return to the nearest harbor slowly and carefully.

4. Have a Yamaha dealer check the outboard motor before operating it again.

EMU30682

Replacing fuse

If a fuse has blown, open the fuse holder and remove the fuse with a fuse puller. Replace it with a spare one of the proper amperage.

EWM00631

WARNING

Substituting an incorrect fuse or a piece of wire could allow excessive current flow. This could cause electric system damage and a fire hazard.

Consult your Yamaha dealer if the new fuse immediately blows again.

95



3

1

1

2

2

1

1. Fuse (20 A  3, 30 A)

2. Spare fuse (20 A  3, 30 A)

3. Fuse puller

ZMU05099

ZMU04337

1. Fuse puller

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

2

1

1. Fuse (15A, 20 A, 30 A)

2. Spare fuse (15A, 20 A, 30 A)

3. Fuse puller

96

3

ZMU03668

1. Manual valve screw

2. Put the engine in the desired position, then tighten the manual valve screw by turning it clockwise.

ZMU07093



EMU41460

Water separator-alert indicator blinks while cruising

EWM01500

WARNING

Gasoline is highly flammable, and its vapors are flammable and explosive.

●

Do not perform this procedure on a hot or running engine. Allow the engine to

● cool.

There will be fuel in the fuel filter. Keep away from sparks, cigarettes, flames or other sources of ignition.

●

●

This procedure will allow some fuel to spill. Catch fuel in a rag. Wipe up any spilled fuel immediately.

The fuel filter must be reassembled carefully with the O-ring, filter cup, and hoses in place. Improper assembly or replacement could result in a fuel leak, which could result in a fire or explosion hazard.

If the water separator-alert indicator on the

Command Link tachometer blinks, perform the following procedure.

1

1

ZMU05475

1. Plastic tie

4. Disconnect the water detection switch coupler. NOTICE: Be careful not to get any water on the water detection switch coupler, otherwise a malfunction could occur.

[ECM01950]

ZMU05476

1. Water detection switch coupler

5. Unscrew the filter cup from the filter housing. NOTICE: Be careful not to twist the water detection switch lead when unscrewing the filter cup.

[ECM01960]

1. Water separator-alert indicator

F50, F60, T50, T60

1. Stop the engine.


3. Remove the plastic tie.

97



1

1

2

ZMU05477 ZMU05475

1. Filter cup

2. Water detection switch lead

6. Drain the water in the filter cup by soaking it up with a rag.

7. Firmly screw the filter cup onto the filter housing. NOTICE: Be careful not to twist the water detection switch lead when screwing the filter cup onto the filter housing.

[ECM01970]

8. Connect the water detection switch coupler securely until a click is heard.

1. Plastic tie

10. Install the top cowling.

11. Start the engine and make sure that the water separator-alert indicator remains off. Have a Yamaha dealer inspect the outboard motor after returning to port.

F70

1. Stop the engine.


3. Remove the cover.

1

ZMU05509


9. Fasten the water detection switch lead with the plastic tie.

4. Remove the holder.

ZMU07095

98



1

1

1. Holder

ZMU07094 ZMU07097

2

1. Filter cup

2. Water detection switch lead

5. Disconnect the water detection switch coupler. NOTICE: Be careful not to get any water on the water detection switch coupler, otherwise a malfunction could occur.

[ECM01950]

7. Drain the water in the filter cup by soaking it up with a rag.

8. Firmly screw the filter cup onto the filter housing. NOTICE: Be careful not to twist the water detection switch lead when screwing the filter cup onto the filter housing.

[ECM01970]

9. Connect the water detection switch coupler securely until a click is heard.

1


ZMU07096

6. Unscrew the filter cup from the filter housing. NOTICE: Be careful not to twist the water detection switch lead when unscrewing the filter cup.

[ECM01960]

1


ZMU07100

10. Fasten the water detection switch lead with the holder.

99



1

1. Holder

ZMU07094

11. Install the cover.

12. Install the top cowling.

13. Start the engine and make sure that the water separator-alert indicator remains off. Have a Yamaha dealer inspect the outboard motor after returning to port.

EMU29542

Starter will not operate

If the starter mechanism does not operate

(the engine cannot be cranked with the starter), the engine can be started manually with an emergency starter rope. However, the engine cannot be started manually if the battery voltage is low. If the battery is discharged to

9 volts or below, the electric fuel pump will not operate.

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 se-

●

●

●

●

● cure place on your clothing, or your arm or leg while operating the boat.



Make sure no one is standing behind you when pulling the starter rope. It could whip behind you and injure someone.

An unguarded, rotating flywheel is very dangerous. Keep loose clothing and other objects away when starting the engine. Use the emergency starter rope only as instructed. Do not touch the flywheel or other moving parts when the engine is running. Do not install the starter mechanism or top cowling after the engine is running.

Do not touch the ignition coil, spark plug wire, spark plug cap, or other electrical components when starting or operating the motor. You could get an electrical shock.

EMU29583

Emergency starting engine


2. Remove the flywheel cover.

100



OFF ON START

ZMU03670

3. Prepare the engine for starting. For further information, see page 58. Be sure the engine is in neutral and that the clip is attached to the engine shut-off switch.

ZMU01906

5. Insert the knotted end of the emergency starter rope into the notch in the flywheel rotor and wind the rope around the flywheel several turns clockwise.

4. Turn on the main switch.

ZMU07099

6. Give a strong pull straight out to crank the engine. Repeat if necessary.

WARNING! Do not install the top cowling when engine is running.

[EWM00621]

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]

101


Consumer information

EMU29830

YAMAHA MOTOR CORPORATION, U.S.A.

FOUR-STROKE OUTBOARD MOTOR

THREE-YEAR LIMITED WARRANTY

102



103



EMU29841

IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR

YAMAHA OUTSIDE THE USA OR CANADA

104

6C1-9-19 Hyoshi.indd 3 2010/02/18 14:41:36

Printed in Japan

February 2010–2.1 × 1 !

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Printed on recycled paper

2010/02/18 14:41:36

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