Yamaha F350A (2017), FL350A (2017) User guide

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Page 1

OWNER’S MANUAL

Read this manual carefully before operating this

outboard motor.

F350A FL350A

6AW-28199-7D-E0

Page 2

EMU25053

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.

Page 3

Important manual information

WARNING

NOTICE

TIP:

EMU25108

To the owner

Thank you for selecting a Yamaha outboard motor. This Owner’s Manual contains information needed for proper operation, maintenance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new Yamaha. If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer. In this Owner’s Manual particularly important information is distinguished in the following ways.

: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

EWM00782

A WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

ECM00702

A NOTICE indicates special precautions that must be taken to avoid damage to the outboard motor or other property.

there is any question concerning this manual, please consult your Yamaha dealer. To ensure long product life, Yamaha recommends that you use the product and perform the specified periodic inspections and maintenance by correctly following the instructions in the owner’s manual. Any damage resulting from neglect of these instructions is not covered by warranty. Some countries have laws or regulations restricting users from taking the product out of the country where it was purchased, and it may be impossible to register the product in the destination country. Additionally, the warranty may not apply in certain regions. When planning to take the product to another country, consult the dealer where the product was purchased for further information. If the product was purchased used, please consult your closest dealer for customer reregistration, and to be eligible for the specified services.

The F350AET, FL350AET 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.

EMU25122

A TIP provides key information to make procedures easier or clearer.

Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most current product information available at the time of printing, there may be minor discrepancies between your machine and this manual. If

F350A, FL350A

OWNER’S MANUAL

1st Edition, November 2016

Any reprinting or unauthorized use

without the written permission of

Yamaha Motor Co., Ltd. is expressly prohibited.

Printed in Japan

Page 4

Table of contents

Safety information............................. 1

Outboard motor safety .....................1

Propeller .............................................. 1

Rotating parts ...................................... 1

Hot parts.............................................. 1

Electric shock ...................................... 1

Power trim and tilt................................ 1

Engine shut-off cord (lanyard) ............. 1

Gasoline .............................................. 1

Gasoline exposure and spills .............. 2

Carbon monoxide ................................ 2

Modifications ....................................... 2

Boating safety ..................................2

Alcohol and drugs................................ 2

Personal flotation devices (PFDs) ....... 2

People in the water.............................. 2

Passengers ......................................... 2

Overloading ......................................... 2

Avoid collisions.................................... 3

Weather............................................... 3

Passenger training .............................. 3

Boating safety publications.................. 3

Laws and regulations .......................... 3

General information .......................... 4

Identification numbers record...........4

Outboard motor serial number ............ 4

Digital electronic control serial

number............................................. 4

Key number ......................................... 5

EC Declaration of Conformity

(DoC)............................................. 5

CE Marking ......................................6

Compliance mark and

manufactured date label................ 6

Read manuals and labels................. 8

Warning labels .................................... 8

Specifications and requirements... 11

Specifications ................................. 11

Installation requirements ................ 12

Boat horsepower rating ..................... 12

Mounting outboard motor .................. 12

Digital electronic control

requirements............................... 12

Battery requirements...................... 13

Battery specifications ........................ 13

Propeller selection ......................... 13

Counter rotation models .................... 14

Start-in-gear protection .................. 14

Engine oil requirements ................. 14

Fuel requirements.......................... 15

Gasoline ............................................15

Anti-fouling paint ............................ 15

Outboard motor disposal

requirements............................... 16

Emergency equipment................... 16

Emission control information.......... 16

Star labels ......................................... 16

Components .................................... 19

Components diagram..................... 19

Optional items ................................... 20

Yamaha Security System (Y-COP) ...24

Digital electronic control ....................25

Digital electronic control-active

indicator ......................................... 26

Digital electronic control-alert

indicator ......................................... 26

Control lever ...................................... 27

Neutral interlock trigger .....................28

Free throttle switch ............................ 28

Throttle friction adjuster..................... 29

Station selector switch....................... 30

Engine selector switch....................... 30

Engine shut-off cord (lanyard) and

clip.................................................. 31

Main switch........................................ 32

Start/Stop switch panel...................... 33

All Start/Stop switch panel................. 34

Power trim and tilt switch on digital

electronic control............................ 34

Power trim and tilt switch on bottom

cowling ........................................... 35

Power trim and tilt switches............... 35

Tilt limiter ........................................... 36

Page 5

Table of contents

Tilt support lever for power trim and

tilt model......................................... 36

Cowling lock lever ............................. 36

Flushing device ................................. 37

Fuel filter............................................ 37

Instruments and indicators ............ 38

6Y9 Multifunction Color Gauge ...... 38

Yamaha Security System indicator

(optional) ........................................ 38

Engine warm-up indicator.................. 38

Engine synchronization indicator....... 38

Overheat alert.................................... 39

Low oil pressure-alert ........................ 39

Water separator alert......................... 40

Low battery voltage-alert ................... 40

Engine trouble alert ........................... 41

6YC Multifunction meter.................41

6Y8 Multifunction meters................ 45

Engine control system.................... 48

Alert system ...................................48

Digital Electronic Control alert ........... 48

Overheat alert.................................... 48

Low oil pressure alert ........................ 50

Water separator alert......................... 51

Installation .......................................53

Installation ...................................... 53

Mounting the outboard motor ............ 53

Operation .........................................55

First-time operation ........................ 55

Fill engine oil ..................................... 55

Breaking in engine............................. 55

Getting to know your boat ................. 55

Checks before starting engine .......55

Fuel level ........................................... 56

Removing top cowling ....................... 56

Fuel system ....................................... 56

Controls ............................................. 57

Engine shut-off cord (lanyard) ........... 57

Engine oil........................................... 57

Engine ...............................................58

Flushing device ................................. 58

Installing top cowling .........................58

Checking power trim and tilt

system............................................ 60

Battery ............................................... 60

Filling fuel ...................................... 61

Operating engine ........................... 61

Sending fuel ...................................... 61

Change of station ..............................62

Starting engine ..................................62

Checks after starting engine .......... 67

Cooling water .................................... 67

Warming up engine........................ 68

Electric start models .......................... 68

Checks after engine warm up ........ 68

Shifting .............................................. 68

Stop switches ....................................68

Selecting outboard motor (triple

engine)........................................ 68

Shifting........................................... 70

Stopping boat................................. 71

Operating the port / center /

starboard engine......................... 71

Boat direction................................. 75

Trolling ........................................... 78

Adjusting trolling speed .....................78

Stopping engine............................. 78

Procedure for single station models

and dual station models (main

station) ...........................................78

Procedure for dual station models

(sub station) ...................................79

Trimming outboard motor............... 80

Adjusting trim angle (Power trim

and tilt) ...........................................81

Adjusting boat trim............................. 82

Tilting up and down........................ 83

Procedure for tilting up (power trim

and tilt models)............................... 83

Procedure for tilting down (power

trim and tilt models)........................ 85

Shallow water ................................ 86

Page 6

Table of contents

Power trim and tilt models ................. 86

Operating in other conditions ......... 88

Maintenance..................................... 89

Transporting and storing outboard

motor ........................................... 89

Storing outboard motor...................... 89

Procedure.......................................... 89

Lubrication......................................... 90

Flushing power unit ........................... 90

Checking painted surface of

outboard motor............................... 91

Periodic maintenance..................... 91

Replacement parts ............................ 91

Severe operating conditions.............. 91

Maintenance chart 1.......................... 93

Maintenance chart 2.......................... 95

Maintenance chart 3.......................... 96

Greasing............................................ 97

Inspecting spark plug ........................ 98

Inspecting engine idle speed............. 99

Changing engine oil......................... 100

Inspecting wiring and connectors .... 100

Checking propeller .......................... 100

Removing propeller ......................... 101

Installing propeller ........................... 101

Changing gear oil ............................ 102

Inspecting and replacing

anode(s)....................................... 104

Checking battery (for electric start

models) ........................................ 104

Connecting the battery .................... 105

Disconnecting the battery................ 107

Storing the battery ........................... 107

Water separator-alert indicator

blinks while cruising .....................112

Treatment of submerged motor ... 115

INDEX ............................................. 116

Trouble Recovery.......................... 108

Troubleshooting ...........................108

Temporary action in emergency... 111

Impact damage................................ 111

Running in an emergency (twin

engines or triple engines)............. 111

Replacing fuse................................. 111

Power trim and tilt will not

operate......................................... 112

Page 7

Safety information

EMU33623

Outboard motor safety

Observe these precautions at all times.

EMU36502

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.

EMU40272

Rotating parts

Hands, feet, hair, jewelry, clothing, personal flotation device (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 top cowling with the engine running. Only operate the engine with the top 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.

EMU33641

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.

EMU33651

Electric shock

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

EMU33661

Power trim and tilt

Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted. Keep body parts out of this area at all times. Be sure no one is in this area before operating the power trim and tilt mechanism. The power trim and tilt switches operate even when the main switch is off. Keep people be away from the switches whenever working around the motor. Never get under the lower unit while it is tilted, even when the tilt support lever is locked. Severe injury could occur if the outboard motor accidentally falls.

EMU33672

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.

EMU33811

Gasoline

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

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Safety information

cording to the procedure on page 61 to reduce the risk of fire and explosion.

EMU33821

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.

EMU33901

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.

EMU33781

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.

EMU33741

Boating safety

This section includes a few of the many important safety precautions that you should follow when boating.

EMU33711

Alcohol and drugs

Never operate after drinking alcohol or taking drugs. Intoxication is one of the most common factors contributing to boating fatalities.

EMU40281

Personal flotation devices (PFDs)

Have an approved PFD on board for every

occupant. Yamaha recommends that you must wear a PFD whenever boating. At a minimum, children and non-swimmers should always wear PFDs, and everyone should wear PFDs when there are potentially hazardous boating conditions.

EMU33732

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.

EMU33752

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.

EMU33762

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 manufacturer’s instructions. Overloading or incorrect weight distribution can compromise the boats han-

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Safety information

ZMU06025

dling and lead to an accident, capsizing or swamping.

EMU33773

Avoid collisions

Scan constantly for people, objects, and other boats. Be alert for conditions that limit your visibility or block your vision of others.

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 aggres-

sive maneuvers to reduce the risk of loss of control, ejection, and collision.

 Take early action to avoid collisions. Re-

member, 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.

EMU33791

Weather

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

boating in hazardous weather.

EMU33881

Passenger training

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

EMU33891

Boating safety publications

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

EMU33602

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.

Page 10

General information

TIP:

ZMU05814

3412

ZMU01692

ZMU06224

ZMU05885

EMU25172

Identification numbers record

EMU25186

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. Outboard motor serial number location

EMU34944

Digital electronic control serial number

The digital electronic control serial number is stamped on the label attached to the digital electronic control box. Record your digital electronic control serial number in the spaces provided to assist you in newly connecting the digital electronic control to the outboard motor.

Consult your Yamaha dealer if you have any questions concerning the digital electronic control serial number.

1. Serial number

2. Model name

3. Motor transom height

4. Approved model code

Page 11

1. Digital electronic control serial number loca-

ZMU05887

ZMU05958

231

ZMU05917

ZMU01694

ZMU07133

tion

General information

on your key as shown in the illustration. Record this number in the space provided for reference in case you need a new key.

1. Serial number

2. Type

3. Approved model code

EMU25192

Key number

If a main key switch is equipped with the motor, the key identification number is stamped

1. Key number

EMU38981

EC Declaration of Conformity

(DoC)

This declaration is included with outboard motors that conform to European regulations. This outboard motor conforms to certain portions of the European Parliament directive relating to machinery. Each conformed outboard motor accompanied with EC DoC.EC DoC contains the following information;

 Name of Engine Manufacture

Page 12

General information

ZMU08050

ZMU06040

ZMU08211

ZMU08190

 Model name  Product code of model (Approved model

code)

 Code of conformed directives

EMU38995

CE Marking

This label is affixed to outboard motors that conform to European regulations. Outboard motors affixed with this “CE” marking conform with the directives of; 2006/42/EC, 94/25/EC - 2003/44/EC, 2014/30/EU, and 2004/108/EC, 2013/53/EU.

1. CE marking location

swivel bracket.

1. Compliance mark and manufactured date label location

Regulatory Compliance Mark (RCM)

Engines affixed with this mark conform to certain portion(s) of the Australian Radio Communications Act.

EMU46132

Compliance mark and

manufactured date label

Engines affixed with this label conform to the regulations for each country. This label is affixed to the clamp bracket or

1. Regulatory Compliance Mark (RCM)

ICES-002 Compliance Label

Engines affixed with this mark meet all requirements of the Canadian Interference Causing Equipment Regulations.

Page 13

1. ICES-002 Compliance Label

ZMU08191

ZMU08192

Manufactured date

The manufactured date is stamped on the label for the engines that conform to the regulations for U.S. Environmental Protection Agency (EPA). The models that manufactured exclusively for the Oceanian countries may not have manufactured date on the label.

General information

1. Manufactured date

Page 14

General information

ZMU05950

EMU33524

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.

EMU33836

Warning labels

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

Page 15

General information

WARNING

6EE-G2794-40

6EE-H1994-40

6EE-G2794-50

6EE-H1994-50

ZMU06191

ZMU05710

EMU34652

Contents of labels

The above warning labels mean as follows.

EWM01682

 Keep hands, hair, and clothing away

from rotating parts while the engine is running.

 Do not touch or remove electrical parts

when starting or during operation.

EWM01672

 Read Owner’s Manuals and labels.  Wear an approved personal flotation

device (PFD).

 Attach engine shut-off cord (lanyard) to

your PFD, arm, or leg so the engine stops if you accidentally leave the

helm, which could prevent a runaway boat.

EMU33851

Other labels

Page 16

General information

ZMU05696

ZMU05664

ZMU05665

ZMU05666

EMU35133

Symbols

The following symbols mean as follows.

Notice/Warning

Read Owner’s Manual

Electrical hazard

Hazard caused by continuous rotation

Page 17

Specifications and requirements

TIP:

EMU34522

Specifications

“(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.

EMU2821V

Dimension and weight:

Overall length:

1029 mm (40.5 in)

Overall width:

633 mm (24.9 in)

Overall height X:

2006 mm (79.0 in)

Overall height U:

2133 mm (84.0 in)

Motor transom height X:

637 mm (25.1 in)

Motor transom height U:

764 mm (30.1 in)

Dry weight (SUS) X:

356 kg (785 lb)

Dry weight (SUS) U:

364 kg (802 lb)

Performance:

Full throttle operating range:

5000–6000 r/min

Rated power:

257.4 kW (350 HP)

Idle speed (in neutral):

600–700 r/min

Power unit:

Type:

4-stroke DOHC V8 32 valves

Total displacement:

5330 cm

(325.2 c.i.)

Bore  stroke:

94.0  96.0 mm (3.70  3.78 in)

Ignition system:

TCI

Spark plug (NGK):

LFR6A-11

Spark plug gap:

1.0–1.1 mm (0.039–0.043 in)

Steering system:

Remote steering

Starting system:

Electric starter

Starting carburetion system:

Fuel injection

Valve clearance IN (cold engine):

0.17–0.24 mm (0.0067–0.0094 in)

Valve clearance EX (cold engine):

0.31–0.38 mm (0.0122–0.0150 in)

Battery rating (CCA/EN):

670–1080 A

Battery rating (20HR/IEC):

110 Ah

Maximum generator output:

50 A

Lower unit:

Gear shift positions:

Forward-neutral-reverse

Gear ratio:

1.73 (26/15)

Trim and tilt system:

Power trim and tilt

Propeller mark:

X (F350AET) XL (FL350AET)

Fuel and oil:

Recommended fuel:

Premium unleaded gasoline

Min. research octane number (RON):

Page 18

Specifications and requirements

WARNING

Recommended engine oil:

YAMALUBE 4 or 4-stroke outboard motor oil

Recommended engine oil grade 1:

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

API SE/SF/SG/SH/SJ/SL Engine oil quantity (without oil filter replacement):

6.3 L (6.66 US qt, 5.54 Imp.qt) Engine oil quantity (with oil filter replacement):

6.5 L (6.87 US qt, 5.72 Imp.qt) Lubrication system:

Wet sump

Recommended gear oil:

YAMALUBE outboard gear oil or Hypoid gear oil

Recommended gear oil grade:

SAE 80W API GL-5 / SAE 90 API GL5

Gear oil quantity:

1.310 L (1.385 US qt, 1.153 Imp.qt)

(FL350AET)

1.520 L (1.607 US qt, 1.338 Imp.qt)

(F350AET)

Tightening torque:

Spark plug:

28 N·m (2.86 kgf·m, 20.7 lb·ft)

Propeller nut:

54 N·m (5.51 kgf·m, 39.8 lb·ft)

Engine oil drain bolt:

27 N·m (2.75 kgf·m, 19.9 lb·ft)

Engine oil filter:

18 N·m (1.84 kgf·m, 13.3 lb·ft)

Noise and vibration level:

Operator sound pressure level (ICOMIA 39/94):

79.1 dB(A)

EMU33556

Installation requirements

EMU33565

Boat horsepower rating

EWM01561

Overpowering a boat can cause severe instability.

Before installing the outboard motor(s), confirm that the total horsepower of your outboard motor(s) does not exceed the boats maximum horsepower rating. See the boat’s capacity plate or contact the manufacturer.

EMU40491

Mounting outboard motor

EWM02501

 Improper mounting of the outboard mo-

tor could result in hazardous conditions such as poor handling, loss of control, or fire hazards.

 Because the outboard motor is very

heavy, special equipment and training is required to mount it safely.

Your dealer or other person experienced in proper rigging should mount the outboard motor using correct equipment and complete rigging instructions. For further information, see page 53.

EMU34954

Digital electronic control

requirements

The digital electronic control is equipped with a start-in-gear protection device(s). This device prevents the engine from starting unless it is in neutral.

EWM01581

 If the engine starts in gear, the boat can

move suddenly and unexpectedly, possibly causing a collision or throwing

Page 19

Specifications and requirements

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.

This digital electronic control unit is only available for the outboard motor which you have purchased. Prior to use of the digital electronic control unit, set it in order to operate your outboard motor only. Otherwise, it will not be possible to operate the outboard motor. Perform setting of the outboard motor and the digital electronic control unit in the following cases.

 If a used outboard motor is installed  If the digital electronic control unit is re-

placed

 If the ECM (Electronic control module) of

the used outboard motor is replaced

 If the ECM (Electronic control module) of

the digital electronic control unit is replaced

Consult your Yamaha dealer for setting.

EMU25695

Battery requirements

EMU25723

Battery specifications

Battery rating (CCA/EN):

670–1080 A

Battery rating (20HR/IEC):

110 Ah

The engine cannot be started if battery voltage is too low.

EMU36293

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.

[EWM01821]

Battery cable

The battery cable size and length are critical. Consult your Yamaha dealer about the battery cable size and length.

EMU36303

Multiple batteries

To connect multiple batteries, such as for multiple engine configurations or for an accessory battery, consult your Yamaha dealer about battery selection and correct wiring.

Battery isolator

Your outboard motor is capable of charging an accessory battery separate from the starting battery using an optional isolator lead. Contact your Yamaha dealer for installation of an optional isolator lead with over-current protection.

EMU41603

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 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

Page 20

Specifications and requirements

ZMU05937

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. Yamaha recommends to use a propeller suitable for the “Shift Dampener System (SDS)”. For further information, consult your Yamaha dealer. To check the propeller, see page 100.

1. Propeller pitch in inches

2. Type of propeller (propeller mark)

3. Propeller diameter in inches

EMU36313

Counter rotation models

Standard outboard motors rotate clockwise. Counter rotation models rotate counterclockwise and are typically used in multiple motor setups. On counter rotation models, be sure to use a propeller intended for counterclockwise rotation. These propellers are identified with the letter “L” after the size indication on the propeller. WARNING! Never use a standard

propeller with a counter rotation motor, or a counter rotation propeller with a standard motor. Otherwise the boat could go in the direction opposite of that expected (for example, reverse instead of

forward), which could lead to an accident.

[EWM01811]

For instructions on propeller removal and installation, see page 101.

EMU35141

Start-in-gear protection

Yamaha outboard motors or Yamaha-approved digital electronic 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.

EMU41953

Engine oil requirements

Select an oil grade according to the average temperatures in the area where the outboard motor will be used.

Recommended engine oil:

YAMALUBE 4 or 4-stroke outboard motor oil

Recommended engine oil grade 1:

SAE 10W-30/10W-40/5W-30 API SE/SF/SG/SH/SJ/SL

Recommended engine oil grade 2:

SAE 15W-40/20W-40/20W-50 API SH/SJ/SL

Engine oil quantity (without oil filter replacement):

6.3 L (6.66 US qt, 5.54 Imp.qt)

Engine oil quantity (with oil filter replacement):

6.5 L (6.87 US qt, 5.72 Imp.qt)

If oil grades listed under Recommended engine oil grade 1 are not available, select an alternative oil grade listed under Recommended engine oil grade 2.

Page 21

Specifications and requirements

NOTICE

ZMU06854

122˚F

50˚C

104

SAE API

SE SF SG SH

-10

-4

-20

10W–30

10W–40

5W–30

ZMU06855

122˚F

50˚C

104

SAE API

-10

-4

-20

15W–40

20W–40

20W–50

Recommended engine oil grade 1

Recommended engine oil grade 2

EMU36361

Fuel requirements

EMU40202

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.

Recommended fuel:

Premium unleaded gasoline

Min. research octane number (RON):

ECM01982

 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 micron minimum) between your boat’s fuel tank and outboard motor when using ethanol. Ethanol is known to allow moisture to be absorbed into boat fuel tanks and systems. Moisture in the fuel can cause corrosion of metallic fuel system components, starting and running complaints and require additional fuel system maintenance.

EMU36331

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.

Page 22

Specifications and requirements

EMISSION CONTROL INFORMATION

THIS ENGINE CONFORMS TO CALIFORNIA EXHAUST AND U.S. EPA EXHAUST AND EVAP REGULATIONS FOR SI MARINE ENGINES. REFER TO OWNER’S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS. FAMILY : DISPLACEMENT : liters MAX POWER : kW FEL : HC+NOx ,CO g/kW-h

EPA CERTIFIED EVAP COMPONENTS :

YAMAHA MOTOR CO.,LTD.

ZMU06894

EMU31563

Approval label of emission control certificate

This label is attached at the location shown. New Technology; (4-stroke) MFI

EMU40302

Outboard motor disposal

requirements

Never illegally discard (dump) the outboard motor. Yamaha recommends consulting the dealer about discarding the outboard motor.

EMU36353

Emergency equipment

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

 A tool kit with assorted screwdrivers, pli-

ers, 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.

EMU39001

Emission control information

The following labels are affixed to outboard motors that conform to US regulations.

EMU25232

1. Approval label location

EMU25275

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.

ZMU08207

This engine conforms to U.S. Environmental Protection Agency (EPA) regulations for marine SI engines. See the label affixed to your engine for details.

Page 23

Specifications and requirements

ZMU05817

ZMU01702

ZMU01703

ZMU01704

gines.

1. Star labels location

EMU40331

One Star—Low Emission The one-star label identifies engines that meet the Air Resources Board’s Personal Watercraft and Outboard marine engine 2001 exhaust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted twostroke engines. These engines are equivalent to the U.S. EPA’s 2006 standards for marine engines.

EMU40341

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 en-

EMU40351

Three Stars—Ultra Low Emission The three-star label identifies engines that meet the Air Resources Board’s Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and Inboard marine engine 20032008 exhaust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines.

EMU33862

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.

Page 24

Specifications and requirements

ZMU05663

Page 25

Components

TIP:

ZMU05813

EMU46721

Components diagram

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

1. Top cowling

2. Anti-cavitation plate

3. Propeller*

4. Cooling water inlet

5. Clamp bracket

6. Tilt support lever

7. Cowling lock lever(s)

8. Fuel filter/water separator

9. Flushing device

10. Power trim and tilt switch

Page 26

Components

EMU46731

Optional items

The following items are available from your Yamaha dealer. For details, consult your Yamaha dealer.

Single station models (single type)

1. Digital electronic control (side-mount type)

2. Engine shut-off switch

3. Clip

4. Switch panel (for use with side-mount type)

5. Digital electronic control (single type)

6. Switch panel (for use with single type)

7. Yamaha Security System (Y-COP)

ZMU08567

Page 27

Single station models (twin/triple type)

Components

1. Digital electronic control (twin type)

2. Engine shut-off switch

3. Clip

4. Switch panel (for use with twin type)

5. Start/Stop switch panel (for use with twin type)

6. Digital electronic control (triple type)

7. Switch panel (for use with triple type)

8. Start/Stop switch panel (for use with triple type)

9. Switch panel (for use with twin/triple type)

10. All Start/Stop switch panel (for use with twin/triple type)

11. Yamaha Security System (Y-COP)

ZMU08568

Page 28

Components

ZMU08569

2 3

Dual station models / main station

1. Digital electronic control (single type)

2. Switch panel (for use with single type)

3. Engine shut-off switch

4. Clip

5. Digital electronic control (twin type)

6. Switch panel (for use with twin type)

7. Start/Stop switch panel (for use with twin type)

8. Digital electronic control (triple type)

9. Switch panel (for use with triple type)

10. Start/Stop switch panel (for use with triple type)

11. Switch panel (for use with twin/triple type)

12. All Start/Stop switch panel (for use with twin/triple type)

13. Station selector switch panel

14. Yamaha Security System (Y-COP)

Page 29

Dual station models / sub station

ZMU07275

2 4

1. Digital electronic control (single type)

2. Start/Stop switch panel (for use with single type)

3. Digital electronic control (twin type)

4. Start/Stop switch panel (for use with twin type)

5. Digital electronic control (triple type)

6. Start/Stop switch panel (for use with triple type)

7. Engine shut-off switch panel

8. Station selector switch panel

9. Engine shut-off switch

10. Clip

Components

Page 30

Components

NOTICE

ZMU08527

SET MODE

1. 6Y8 Multifunction tachometer

2. 6Y8 Multifunction speed & fuel meter

3. 6YC Multifunction meter

4. 6Y9 Multifunction Color Gauge

EMU46750

Yamaha Security System (Y-COP)

ECM02461

The Yamaha Security System is sold in conformity with the relevant laws and regulations regarding radio wave transmission. Therefore, if this product is used outside the country where it was sold, it may violate the laws or regulations regarding radio wave transmission in the country it is used in. For details, consult your Yamaha dealer.

SET

CANCEL

ZMU07670

tects against theft, consists of the receiver and remote control transmitters. The Yamaha Security System is available from your Yamaha dealer. For details, consult your Yamaha dealer.

1. Remote control transmitter

2. Receiver

The Yamaha Security System, which pro-

The engine cannot be started if the security

Page 31

system is in the lock mode. The engine can

ZMU06225

1 2

ZMU05850

ZMU05851

ZMU05959

be started only in the unlock mode. For more information, see the installation and owner’s manual included with the security system.

EMU35944

Digital electronic control

The digital electronic control actuates the shifter, the throttle and remote electrical operations. Make sure that the active indicator lights and that the digital electronic control unit is correctly connected to the outboard motor. The digital electronic controls of the main station and sub station have the same functions.

Components

1. Control lever

2. Neutral interlock trigger

3. Digital electronic control-alert indicator

4. Digital electronic control-active indicator

5. Free throttle switch

6. Clip

7. Engine shut-off switch

8. Throttle friction adjuster

9. Power trim and tilt switch

1. Control lever

2. Digital electronic control-active indicator

3. Digital electronic control-alert indicator

4. Free throttle switch

5. Throttle friction adjuster

6. Power trim and tilt switch

7. Engine selector switch

Page 32

Components

ZMU06276

ZMU05888

ZMU05890

ZMU05966

ZMU06227

EMU34974

Digital electronic control-active indicator

The digital electronic control-active indicator indicates that the digital electronic control system is in the operating state.

 Lights: Operation of both shift and throttle

possible.

 Blinks (when the gear shift is in neutral

only): Shift not operable. Only throttle operation available.

 Off: Shift and throttle not operable.

1. Digital electronic control-active indicator

EMU34985

Digital electronic control-alert indicator

The digital electronic control-alert indicator lights when trouble occurs in the connection between the digital electronic control and outboard motor. Consult your Yamaha dealer for details.

Page 33

Components

ZMU05889

ZMU05891

ZMU05960

ZMU06228

ZMU05878

N 1

Digital electronic control for twin type has the function to automatically synchronize both engine speeds. Also digital electronic control for triple type has the function to automatically synchronize the engine speeds of the center engine and starboard side engine, adapting the port side

engine speed. The functions of the control lever for tripletype digital electronic control are as follows.

 Operate the port side engine using the port

side control lever.

 The center engine runs at the average

speed of port side and starboard side engines’ speeds.

 Operate the starboard side engine using

the starboard side control lever.

1. Digital electronic control-alert indicator

EMU35823

Control lever

Moving the lever forward from the neutral position engages forward gear. Pulling the lever back from neutral engages reverse. The engine will continue to run at idle until the lever is moved 22.5 (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

Page 34

Components

ZMU06285

ZMU06231

ZMU06232

22.5˚

ZMU05880

ZMU05881

22.5

5. Fully closed

6. Throttle

7. Fully open

EMU26202

Neutral interlock trigger

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

1. Neutral interlock trigger

EMU35833

Free throttle switch

In neutral, keep this switch pressed, move the control lever forward, and release the switch after the digital electronic control-active indicator starts blinking. While the indicator blinks, you can open or close the throttle. This can also be done when the control lever is set in reverse.

Single type

1. Fully open

2. Fully closed

3. Free accelerator

Single type

1. Fully open

2. Fully closed

3. Free accelerator

Page 35

Twin type

WARNING

ZMU05882

ZMU05883

22.5

ZMU05961

ZMU05962

22.5

1. Fully open

2. Fully closed

3. Free accelerator

Triple type

Components

1. Fully open

2. Fully closed

3. Free accelerator

The free throttle switch can only be used when the control lever is in the neutral position. During operation the digital electronic control-active indicator changes from continuously lit to blinking. When the indicator starts blinking, the throttle begins to open after the control lever is moved at least 22.5. After using the free throttle switch, return the control lever to the neutral position. The free throttle switch will return automatically to its set position. The digital electronic control-active indicator will change from blinking to continuously lit and the digital electronic control will then engage forward and reverse normally.

EMU35873

Throttle friction adjuster

A friction device provides adjustable resistance to movement of the control lever, and can be set according to operator preference. To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise.

EWM01771

 If the friction is too small, the control le-

Page 36

Components

ZMU06233

ZMU05820

ZMU05819

ZMU05963

ZMU07141

ver could move freely and cause an accident.

 Do not overtighten the friction adjuster.

If there is too much resistance, it could be difficult to move the control lever, which could result in an accident.

Single type

Triple type

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

EMU35712

Station selector switch

The station selector switch can select either the main station or sub station for the digital electronic control which operates the boat. The digital electronic controls of the main station and sub station have the same functions. You can change the station when the main switch is turned to “ ” (on) and all control levers are in Neutral. The switch panel can be operated at both the main station and sub station when the main switch is set to “ ” (on).

Twin type

EMU35721

Engine selector switch

When all engines have started, you can select the desired engine for operation by pushing the engine selector switch. The en-

Page 37

gine selector switch works only when all the

WARNING

TIP:

ZMU05977

ZMU06235

ZMU04565

ZMU07143

control levers are in neutral.

1. Engine selector switch

EMU35775

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.

EWM01791

Components

The engine cannot be started with the clip removed.

 Attach the engine shut-off cord to a se-

cure 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 dur-

ing 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.

Page 38

Components

STARTOFF

ZMU05818

ZMU05978

ZMU07144

ZMU07142

1. Cord

2. Clip

3. Engine shut-off switch

EMU35783

Main switch

The main switch controls the ignition system; its operation is described below. Only equipped with the main station.

 “” (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. The engine can be started by pressing the Start/Stop button.

 “” (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.

Page 39

Single type

ZMU06245

OFF

START

OFF

START

ZMU04567

OFF

ZMU07145

START

OFF

START

OFF

START

ZMU05821

OFF

ZMU07146

ZMU05982

OFF

ZMU07146

Components

Triple type

Twin type

EMU42081

OFF

START

OFF

START

OFF

START

Start/Stop switch panel

The engine can be started or turned off by pressing the Start/Stop button. For twin and triple type, it is possible to start or turn off individual engine. The indicator for the corresponding engine will come on.

 PORT:Port side engine  CENTER:Center engine  STBD:Starboard side engine

Page 40

Components

ZMU07173

ZMU07174

ZMU07175

ZMU07176

ZMU06234

1. Start/Stop button

1. Indicator

2. Start/Stop button

1. All Start/Stop button

EMU35154

Power trim and tilt switch on digital electronic control

The power trim and tilt system adjusts the outboard motor angle in relation to the transom. Pressing the switch “ ” (up) trims the outboard motor up, and then tilts it up. Pressing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position. For instructions on using the power trim and tilt switch, see pages 80 and 83.

EMU41632

All Start/Stop switch panel

The Start/Stop button allows all engines to start or turn off.

Page 41

Components

WARNING

ZMU05822

ZMU05823

ZMU05835

EMU26156

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 83.

EWM01032

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.

EMU35852

Power trim and tilt switches

The power trim and tilt system adjusts the outboard motor angle in relation to the transom. Pushing 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.

Page 42

Components

TIP:

NOTICE

ZMU05964

ZMU05824

1. Power trim and tilt switch

On the twin engine control, the switch on the control grip controls both outboard motors at the same time. On the triple engine control, the switch on the control grip controls all outboard motors at the same time. For instructions on using the power trim and tilt switches, see pages 80 and 83.

EMU35041

Tilt limiter

This outboard motor is equipped with a tilt limiter that controls the tilt range.

Consult your Yamaha dealer about changing the setting.

EMU35031

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. Make sure that the lever is securely retained by the bolts.

ECM00661

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.

EMU40762

Cowling lock lever

The cowling lock levers are used to secure the top cowling.

Page 43

Components

TIP:

ZMU08572

1 1

ZMU05825

ZMU05854

1. Cowling lock lever

1. Cowling lock lever(s)

EMU26464

ZMU08571

Flushing device

This device is used to clean the cooling water passages of the motor using a garden hose and tap water.

1. Flushing device

For details on usage, see page 90.

EMU41312

Fuel filter

The fuel filter functions to remove foreign material and separate water from the fuel. If water separated from the fuel exceeds a specific volume, the alert system will activate. For further information, see page 51.

Page 44

Instruments and indicators

ZMU07233

SET

CANCEL

54321 6

12 11

ZMU07234

ZMU07235

ZMU07236

EMU41782

6Y9 Multifunction Color Gauge

The 6Y9 Multifunction Color Gauge (hereinafter called the Multi-Display) shows engine status and alert information. The display of optional items can be changed. This manual mainly covers the alert display. For information on other settings or changing the display, see the 6Y9 Multifunction Color Gauge owner’s manual.

1. Arrow keys

2. Set button

3. Cancel button

4. Menu button

5. Display

6. Optional items

7. Engine trouble-alert indicator

8. Low battery voltage-alert indicator

9. Water separator-alert indicator

10. Low oil pressure-alert indicator

11. Overheat-alert indicator

12. Tachometer

EMU41643

Yamaha Security System indicator (optional)

This indicator appears when the Yamaha Security System is in lock mode. Make sure it is off before starting the engine.

EMU41651

Engine warm-up indicator

This indicator appears while the engine is being warmed up and goes off when warming-up is finished.

1. Shift position display

2. Yamaha Security System indicator (optional)

3. Engine warm-up indicator

4. Engine synchronization indicator

5. Trim meter

EMU42091

Engine synchronization indicator

In multiple engine types, this display appears

Page 45

Instruments and indicators

NOTICE

ZMU07237

ZMU07238

ZMU07239

ZMU07240

while the engines are under engine synchronization control. It goes off when engine synchronization control is released.

EMU41683

Overheat alert

If the engine temperature rises too high while cruising, the pop-up window will appear. Press the “ ” (set) button to change to normal display, and the overheat-alert indicator will start to blink. The engine speed will automatically decrease to about 2000–3500 r/min.

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

ECM01594

 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

an alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected.

EMU41692

Low oil pressure-alert

If the engine oil pressure drops too low, the pop-up window will appear. Press the “ ” (set) button to change to normal display, and the low oil pressure-alert indicator will start to blink. The engine speed will automatically decrease to about 2000–3500 r/min.

Page 46

Instruments and indicators

NOTICE

ZMU07241

ZMU07242

ZMU07250

ZMU07251

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

ECM01602

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

EMU41701

Water separator alert

The pop-up window will appear if water has accumulated in the water separator (fuel filter) while cruising. Press the “ ” (set) button to change to normal display, and the water separator-alert indicator will start to blink.

Stop the engine immediately and see page 111 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha dealer immediately.

ECM00911

Gasoline mixed with water could cause damage to the engine.

EMU41721

Low battery voltage-alert

The pop-up window will be displayed if the battery voltage drops. Press the “ ” (set) button will change to the normal display and the battery voltage-alert indicator will start to blink.

Page 47

Instruments and indicators

TIP:

ZMU07252

ZMU07253

ZMU07254

ZMU08323

ZMU08324

Get back to the port soon if the low battery voltage-alert device has activated. For charging the battery, consult your Yamaha dealer.

EMU41711

Engine trouble alert

The pop-up window will appear if the engine malfunctions while cruising. Press the “ ” (set) button to change to normal display, and the engine trouble-alert indicator will start to blink.

Return to port and consult a Yamaha dealer immediately.

EMU46662

6YC Multifunction meter

The 6YC Multifunction meter shows engine status and alert information.

1. Multifunction display

2. Directional keypad

3. Set button

4. Cancel button

5. Menu button

Multifunction display

1. Trim meter

2. Optional items

3. Tachometer

The optional items displayed on the multifunction display can be changed. For information on other settings or changing the displayed optional items, see the operation

Page 48

Instruments and indicators

NOTICE

6 5 4 3 2

ZMU08325

ZMU08326

ZMU08327

ZMU08332

manual included with the 6YC Multifunction meter.

This manual mainly covers the alert display of the 6YC Multifunction meter. See the following sections for information about the display and indicators.

Indicators

1. Yamaha Security System indicator (optional)

2. Engine trouble-alert indicator

3. Low battery voltage-alert indicator

4. Water separator-alert indicator

5. Low oil pressure-alert indicator

6. Overheat-alert indicator

Make sure that the Yamaha Security System indicator is off before starting the engine.

Engine trouble alert

If the engine malfunctions while cruising, the pop-up window will appear.

1. Pop-up window

To return to the normal display Push the “SET” (set) button, and the engine trouble-alert indicator will start to blink.

Yamaha Security System indicator (optional)

This indicator appears, when the Yamaha Security System is in lock mode.

1. Yamaha Security System indicator (optional)

1. Engine trouble-alert indicator

ECM00921

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

Low battery voltage alert

If the battery voltage drops, the pop-up window will appear.

Page 49

Instruments and indicators

NOTICE

ZMU08328

ZMU08333

ZMU08329

ZMU08334

1. Pop-up window

To return to the normal display Push the “SET” (set) button, and the low battery voltage-alert indicator will start to blink.

1. Low battery voltage-alert indicator

Get back to the port soon if the low battery voltage-alert device has activated. For charging the battery, consult your Yamaha dealer.

Water separator alert

If water has accumulated in the water separator (fuel filter) while cruising, the pop-up window will appear.

1. Pop-up window

To return to the normal display Push the “SET” (set) button, and the water separator-alert indicator will start to blink.

1. Water separator-alert indicator

Stop the engine immediately and see page 111 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha dealer immediately.

ECM00911

Gasoline mixed with water could cause damage to the engine.

Low oil pressure alert

If the engine oil pressure drops too low, the pop -up window will appear. The engine speed will automatically decrease to about 2000–3500 r/min.

Page 50

Instruments and indicators

NOTICE

ZMU08330

ZMU08335

ZMU08331

ZMU08336

cruising, the pop -up window will appear. The engine speed will automatically decrease to about 2000–3500 r/min.

1. Pop-up window

To return to the normal display Push the “SET” (set) button, and the low oil pressure-alert indicator will start to blink.

1. Pop-up window

To return to the normal display Push the “SET” (set) button, and the overheat-alert indicator will start to blink.

1. Low oil pressure-alert indicator

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

ECM01602

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

Overheat alert

If the engine temperature rises too high while

1. Overheat-alert indicator

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

ECM01594

 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

an alert device has activated. Consult

Page 51

Instruments and indicators

TIP:

SET MODE

ZMU08407

1 2

ZMU08408

SET MODE

ZMU08409

ZMU08410

your Yamaha dealer if the problem cannot be located and corrected.

EMU46654

6Y8 Multifunction meters

There are two types of 6Y8 Multifunction meters.

 6Y8 Multifunction tachometer  6Y8 Multifunction speed & fuel meter

6Y8 Multifunction tachometer

1. Set button

2. Mode button

6Y8 Multifunction speed & fuel meter

1. Set button

2. Mode button

1. Speedometer

2. Fuel meter

3. Multifunction display

1. Tachometer

2. Trim meter

3. Multifunction display

The information displayed on the multifunction display can be changed. For information on other settings or changing the displayed information, see the operation manual included with the 6Y8 Multifunction meter.

This manual mainly covers the alert display of the 6Y8 Multifunction tachometer. See the following sections for information about the alert indicators.

Page 52

Instruments and indicators

NOTICE

7 6 5 4

2 3

ZMU08411

SET MODE

ZMU08412

ZMU08413

ZMU08414

Indicators

1. Yamaha Security System indicator (optional)

2. Water separator-alert indicator

3. Engine trouble-alert indicator

4. Battery voltage indicator

5. Overheat-alert indicator

6. Low oil pressure-alert indicator

7. Cooling water pressure indicator (optional)

Yamaha Security System indicator (optional)

This indicator appears, when the Yamaha Security System is in lock mode.

Lock mode

1. Yamaha Security System indicator (optional)

1. Water separator-alert indicator

Stop the engine immediately and see page 111 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha dealer immediately.

ECM00911

Gasoline mixed with water could cause damage to the engine.

Engine trouble-alert indicator

If the engine malfunctions while cruising, the engine trouble-alert indicator will start to blink. Get back to the port soon and consult a Yamaha dealer immediately.

Make sure that the Yamaha Security System indicator is off before starting the engine.

Water separator-alert indicator

If water has accumulated in the water separator (fuel filter) while cruising, the water separator-alert indicator will start to blink.

1. Engine trouble-alert indicator

ECM00921

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

Page 53

Instruments and indicators

NOTICE

ZMU08415

ZMU08416

ZMU08417

mediately.

Low battery voltage alert

If the battery voltage drops, the battery voltage value will start to blink.

1. Battery voltage value

Get back to the port soon if the low battery voltage alert device has activated. For charging the battery, consult your Yamaha dealer.

Overheat-alert indicator

If the engine temperature rises too high while cruising, the overheat-alert indicator will start to blink, and the engine speed will automatically decrease to about 2000–3500 r/min.

ECM01594

 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

an alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected.

Low oil pressure-alert indicator

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 2000–3500 r/min.

1. Low oil pressure-alert indicator

1. Overheat-alert indicator

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

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

ECM01602

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

Page 54

Engine control system

NOTICE

ZMU06227

ZMU05889

ZMU05891

ZMU05960

ZMU05422

EMU26805

Alert system

ECM00093

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

EMU35185

Digital Electronic Control alert

If during operation of the outboard motor any communication troubles between the digital electronic control and the outboard motor occur, the alert indicator will light. Even if there is no symptom of trouble on shifting or throttle, get back to the port soon and have a Yamaha dealer inspect or repair the outboard motor.

1. Digital electronic control-alert indicator

EMU42114

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 2000–3500 r/min.

 The overheat-alert indicator of the 6Y8

Multifunction Tachometer will light or blink.

Page 55

 The pop-up window will appear on the

ZMU07238

ZMU08533

ZMU06297

ZMU04583

OFF START

ON ON

OFF

START

ZMU05827

ZMU05989

ZMU07155

Multi-Display.

Engine control system

 The buzzer will sound.

OFF

START

OFF

START

Page 56

Engine control system

ZMU07156

ZMU07332

ZMU07333

ZMU07334

ZMU05826

If the alert system has activated, stop the engine and check the cooling water inlets:

 Check trim angle to be sure that the cool-

ing water inlet is submerged.

 Check the cooling water inlet for clogging.

Multiple engine drive users: If the overheat alert system of one engine activates, the engine will slow down. To switch off the alert activation on the engine not affected by overheating, turn off the main switch of the engine overheating. If the alert system has activated, stop the engine and tilt the outboard motor up to check the cooling water inlet for clogging. If the alert system has still activated, tilt the overheated outboard motor up and return to the port.

EMU42133

Low oil pressure alert

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

 The engine speed will automatically de-

crease to about 2000–3500 r/min.

 The low oil pressure-alert indicator of the

6Y8 Multifunction Tachometer will light or blink.

Page 57

 The pop-up window will appear on the

ZMU05431

ZMU07240

ZMU08534

ZMU05424

ZMU07242

Multi-Display.

Engine control system

gine activates, all of the engines will slow down and the buzzer will sound. To switch off the alert activation on the engine(s) not affected by low oil pressure, turn off the main switch of the engine with the low oil pressure.

EMU42152

Water separator alert

The outboard motor is equipped with a water separator alert system. If water separated from the fuel exceeds a specific volume, the alert system will activate.

 The water separator-alert indicator of the

6Y8 Multifunction Tachometer will come on or blink.

 The buzzer will sound in the same way as

during an overheating alert. If the alert device 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. Multiple engine drive users: If the low oil pressure alert system of one en-

 The pop-up window will appear on the

Multi-Display.

Page 58

Engine control system

NOTICE

ZMU08535

 The buzzer will sound intermittently when

the control lever is in the neutral position. If the alert system has activated, stop the engine and see page 111 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha dealer immediately.

ECM02471

Although the buzzer will stop when the engine is started and the control lever is moved to the forward or reverse position, do not use the outboard motor. Otherwise, serious engine damage could occur.

Page 59

EMU26903

WARNING

ZMU01760

ZMU05957

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.

EWM01591

 Overpowering a boat could cause se-

vere instability. Do not install an out-

board motor with more horsepower

than the maximum rating on the capac-

ity plate of the boat. If the boat does not

have a capacity plate, consult the boat

manufacturer.

 Improper mounting of the outboard mo-

tor could result in hazardous condi-

tions such as poor handling, loss of

control, or fire hazards. For permanent-

ly mounted models, your dealer or oth-

er person experienced in proper rigging

should mount the motor.

EMU35812

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. For twin engine boats, mount the outboard motors equidistant from the centerline. For triple engine boats, mount the center outboard motor on the centerline (keel line), and the port side and starboard side outboard motors equidistant from the center outboard motor. Consult your Yamaha dealer or boat manufacturer for further information on determining the proper mounting location.

Installation

1. Center line (keel line)

EMU26936

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 an adequate water supply, which can cause en-

Page 60

Installation

NOTICE

ZMU01762

gine 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.

intake opening in the top cowling to cause severe engine damage. Remove the cause of the airborne water spray.

ECM01635

 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 ac-

cessories, such as transom ladders or

depth finder transducers) can create

airborne water spray while the boat is

cruising. If the outboard motor is oper-

ated continuously in the presence of

airborne water spray, enough water

could enter the engine through the air

Page 61

Operation

TIP:

WARNING

ZMU01710

EMU36382

First-time operation

EMU36393

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. [ECM01782]

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

57.

EMU30175

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.

EMU27086

[ECM00802]

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.

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

EMU36402

Getting to know your boat

All boats have unique handling characteristics. Operate cautiously while you learn how your boat handles under different conditions and various trim angles (see page 80).

EMU36414

Checks before starting engine

EWM01922

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

Page 62

Operation

NOTICE

WARNING

ZMU08578

ZMU08579

dent could occur.

ECM00121

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

EMU36422

Fuel level

Be sure you have plenty of fuel for your trip. A good rule is to use 1/3 of your fuel to get to the destination, 1/3 to return, and to keep 1/3 as an emergency reserve. With the boat level on a trailer or in the water, turn the key to “ ” (on) and check the fuel level. For fuel filling instructions, see page 61.

EMU40774

Removing top cowling

For the following checks, remove the top cowling from the bottom cowling. To remove the top cowling, pull the cowling lock levers and lift up the top cowling.

1. Cowling lock lever(s)

2. Bottom cowling

3. Top cowling

EMU36443

Fuel system

EWM00061

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

EWM00911

1. Cowling lock lever

2. Bottom cowling

3. Top cowling

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.

EMU36453

Check for fuel leaks

 Check for fuel leaks or gasoline fumes in

the boat.

 Check for fuel leakage from the fuel sys-

tem.

 Check the fuel tank and fuel lines for

cracks, swellings, or other damage.

Page 63

EMU36472

ZMU05854

ZMU06873

ZMU05905

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.

EMU41771

Controls

 Turn the main switch “ ” (on) and make

sure that the Digital electronic control-active indicator comes on.

 Turn the steering wheel full-right and full-

left. 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.

EMU40363

Engine shut-off cord (lanyard)

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

Operation

1. Clip

2. Cord

EMU40994

Engine oil

1. Place the outboard motor in a vertical position (not tilted). NOTICE: If the out-

board motor is not level, the oil level indicated on the oil dipstick may not be accurate.

2. Remove the oil dipstick and wipe it clean.

1. Oil dipstick

3. Insert the oil dipstick completely and remove it again.

4. Check that the oil level on the oil dipstick is between the upper and lower marks. Consult your Yamaha dealer if the oil level is not at the proper level or if it appears milky or dirty.

[ECM01862]

Page 64

Operation

ZMU05918

ZMU06057

1. Oil dipstick

2. Lower mark

3. Upper mark

EMU27154

Engine

 Check the engine and engine mounting.  Look for loose or damaged fasteners.  Check the propeller for damage.  Check for engine oil leaks.

EMU36494

Flushing device

Check that the flushing device’s garden hose connector is securely screwed on to the fitting on the bottom cowling. NOTICE: If the

garden hose connector is not properly connected, cooling water can leak out and the engine can overheat during operation. [ECM01802]

1. Fitting

2. Flushing device

EMU40752

Installing top cowling

1. Check the rubber seal for damage. If the rubber seal is damaged, have it replaced by a Yamaha dealer.

ZMU08573

1. Rubber seal

2. Bottom cowling

Page 65

2. Check that the rubber seal is seated all

ZMU08575

ZMU08576

ZMU08577

ZMU05940

the way around the bottom cowling.

3. Check that all of the cowling lock levers are pulled outward.

4. Align the 3 protrusions on the top cowling with the corresponding holders on the bottom cowling, and then place the top cowling on the bottom cowling.

Operation

1. Cowling lock lever

1. Top cowling

2. Protrusion

3. Holder

4. Bottom cowling

1. Top cowling

2. Protrusion

3. Holder

4. Bottom cowling

5. Push the cowling lock levers inward to secure the top cowling.

ZMU08574

1. Cowling lock lever(s)

6. Check the fitting of the top cowling by pushing it with both hands. NOTICE: If

the top cowling is not installed correctly, water can enter the top cowling and damage the engine, or the top cowling can blow off at high speeds.

[ECM02371]

Page 66

Operation

WARNING

ZMU05868

ZMU05869

ZMU05855

EMU35245

Checking power trim and tilt system

EWM01931

 Never get under the lower unit while it

is tilted, even when the tilt support lever is locked. Severe injury could occur if the outboard motor accidentally falls.

 Body parts can be crushed between the

motor and the clamp bracket when the motor is trimmed or tilted.

 Be sure no one is near the outboard

motor before performing this check.

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

2. Operate each of the power trim and tilt switches on the digital electronic control and engine bottom cowling (if equipped) to check that all switches work.

3. Tilt the outboard motor up and check that the tilt rod and trim rods are extended completely.

1. Tilt support lever

5. Check that the tilt rod and trim rods are free of corrosion or other flaws.

6. Activate the tilt-down switch until the trim rods have retracted completely into the cylinders.

1. Tilt rod

2. Trim rods

4. Use the tilt support lever to lock the motor in the up position. Operate the tilt down switch briefly so the motor is supported by the tilt support lever.

7. Activate the trim-up switch until the tilt rod is fully extended. Unlock the tilt support lever.

8. Tilt the outboard motor down. Check that the tilt rod and trim rods operate smoothly.

EMU36585

Battery

Check the battery’s charge. If your boat is equipped with a Yamaha digital speedometer, the voltmeter and low battery alert functions will help you monitor the battery’s charge. A battery in good condition will provide a minimum of 12 volts. Check that the

Page 67

Operation

WARNING

battery connections are clean, secure and covered by insulating covers. The electrical connections of the battery and cables must be clean and properly connected or the battery will not start the engine. If the battery needs charging, consult your Yamaha dealer or the battery manufacturer’s instructions.

EMU30027

Filling fuel

EWM01831

 Gasoline and its vapors are highly flam-

mable and explosive. Always refuel according to this procedure to reduce the risk of fire and explosion.

 Gasoline is poisonous and can cause

injury or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow some gasoline or inhale a lot of gasoline vapor, or get some gasoline in your eyes, see your doctor immediately. If gasoline spills on your skin, wash with soap and water. If gasoline spills on your clothing, change your clothes.

1. Make sure that the engine is stopped.

2. Make sure that the boat is in a well-ventilated outdoor area, either securely moored or trailered.

3. Make sure that no one is in the boat.

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

5. If you use a portable container to store and dispense fuel, only use a locally approved GASOLINE container.

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

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

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

[EWM02611]

8. Tighten the fuel tank cap securely.

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

EMU27453

Operating engine

EWM00421

 Before starting the engine, make sure

that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the water near you.

 When the air vent screw is loosened,

gasoline vapor will be released. Gasoline is highly flammable, and its vapors are flammable and explosive. Refrain from smoking, and keep away from open flames and sparks while loosening the air vent screw.

 This product emits exhaust gases

which contain carbon monoxide, a colorless, odorless gas which could cause brain damage or death when inhaled. Symptoms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.

EMU31814

Sending fuel

1. If there is a fuel joint or a fuel valve on the boat, firmly connect the fuel line to the joint or open the fuel valve.

2. Squeeze the primer pump, with the arrow pointing up, until you feel it become firm.

Page 68

Operation

WARNING

ZMU07141

1. Arrow

EMU35751

Change of station

For dual station boats, the station selector switch can select either the main station or sub station for the operating seat. Only the selected station can operate the digital electronic control. The switch panel can start and stop the engine at both stations, regardless of the selected station.

1. Set all control levers to Neutral.

2. Turn the main switch to “ ” (on).

3. Push the station selector switch to select the station for operating the boat.

4. The digital electronic control-active indicator for the selected station lights.

EMU27495

Starting engine

EWM01601

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.

EMU41791

Start-up checks

Place the control lever in neutral and turn the main switch to “ ” (on). Make sure that no alert-indicator comes on. If the buzzer sounds and the water separator-alert indicator blinks, consult your Yamaha dealer immediately.

EMU3586A

Procedure for single station models

EWM01842

 Failure to attach the engine shut-off

cord could result in a runaway boat if operator is ejected. 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 dur-

1. Place the control lever in “ ” (neutral).

Page 69

TIP:

The start-in-gear protection device prevents

ZMU06236

ZMU05829

ZMU06237

ZMU04628

ZMU07167

STARTOFF

ZMU05828

ZMU05993

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.

Operation

Page 70

Operation

ZMU06246

START

ZMU04596

START

ZMU07169

START

ZMU05830

START

ZMU05994

3. Turn the main switch to “ ” (on) to make sure that the digital electronic control-active indicator lights. The engine can not be started when the digital electronic control-alert indicator lights.

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

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.

[ECM00193]

Page 71

Operation

TIP:

ZMU07148

ZMU07149

ZMU07150

ZMU05829

When starting the engine using the Start/Stop button, press the button to start the engine. The indicator for the starting engine will come on.

When starting the engine using the Start/Stop button on the All Start/Stop panel, press the button to start the all engines.

gine shut-off switch, the buzzer will sound.

 Except the single type, if the clip is not in-

stalled to the engine shut off switch, the buzzer will sound when the Start/Stop button is pressed.

 Except the single type, if one of the en-

gines has started, it can be stopped by pressing the Start/Stop button on the All start/Stop panel.

EMU35924

Procedure for dual station models (main station)

1. Place the control lever in “ ” (neutral).

The start-in-gear protection device prevents the engine from starting except when in neutral.

2. Turn the main switch “ ” (on) to make sure that the digital electronic control-active indicator lights. The engine can not be started when the digital electronic control-alert indicator lights.

 When the main switch is turned to “ ”

(start) with the clip removed from the en-

Page 72

Operation

TIP:

WARNING

TIP:

ZMU07141

3. The procedure until starting the engine is the same as that of the single station models. 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.

[ECM00193]

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

 Avoid accidentally pulling the cord dur-

1. Turn the main switch of the main station to “ ” (on) to make sure that the digital electronic control-active indicator lights. The engine can not be started when the digital electronic control-alert indicator lights.

2. Place the control lever in “ ” (neutral).

3. Push the station selector switch of the sub station. Station change is only possible when all control levers have been set to “ ” (neutral). Make sure that the digital electronic control-active indicator of the sub station lights.

The sub station can start and stop the engine. However, it cannot operate the digital electronic control.

EMU35765

Procedure for dual station models (sub station)

EWM01842

 Failure to attach the engine shut-off

cord could result in a runaway boat if operator is ejected. 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

The main station can still start and stop the engine. However, it cannot operate the digital electronic control.

4. 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

Page 73

end of the cord into the engine shut-off

TIP:

NOTICE

ZMU07322

ZMU07147

ZMU07148

ZMU07149

switch.

5. Press the Start/Stop button to start the engine. The indicator for the starting engine will come on. NOTICE: 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, release the Start/Stop button, wait 10 seconds, then crank the engine again.

[ECM02491]

Operation

If the clip is not installed to the engine shut off switch, the buzzer will sound when the Start/Stop button is pressed.

EMU36511

Checks after starting engine

EMU41361

Cooling water

Check for a steady flow of water from the cooling water pilot hole. A continuous flow of water from the cooling water pilot hole shows that the water pump is pumping water through the cooling water passages.

When the engine is started, there may be a slight delay before water flows from the cooling water pilot hole.

ECM02251

If water is not flowing out of the cooling water pilot hole at all times while the en-

Page 74

Operation

ZMU05848

ZMU05998

gine 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.

EMU27671

Warming up engine

EMU41811

Electric start models

After the engine has started, warm up the engine until the engine speed settles at idling speed. The engine warming-up indicator is shown on the Multi-Display while the engine warms up. For further information, see page

38.

EMU36532

Checks after engine warm up

EMU36542

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.

EMU41821

Stop switches

Perform the following procedure to check that the main switch and engine shut-off switch operate properly.

 Check that the engine stops when the

main switch is turned to the “ ” (off) position, or press the Start/Stop button.

 Check that the engine stops when the clip

is pulled from the engine shut-off switch.

 Check that the engine cannot be started

with the clip removed from the engine shut-off switch.

EMU35881

Selecting outboard motor

(triple engine)

After all engines have started, set all control levers to Neutral. Push the engine selector switch repeatedly to change the digital electronic control-active indicator and select the desired engine.

1. Port side control lever

2. Starboard side control lever

3. Port side engine

4. Center engine

5. Starboard side engine

1. First, three engines can be operated.

Page 75

TIP:

When all engines have started, the center

ZMU05999

ZMU06000

ZMU06001

ZMU06000

ZMU06002

engine will run at the average speed of port side and starboard side engines’ speeds.

 Operate the port side engine using the port

side control lever.

 The center engine runs at the average

speed of port side and starboard side engines’ speeds.

 Operate the starboard side engine using

the starboard side control lever.

2. Push the engine selector switch once to operate the port side and starboard side engines.

Operation

 Operate the port side engine using the port

side control lever.

 The center engine runs at the idling speed.  Operate the starboard side engine using

the starboard side control lever.

3. Push the engine selector switch twice to operate the center engine.

 The port side engine runs at the idling

speed.

 Operate the center engine using the port

side control lever.

Page 76

Operation

WARNING

ZMU06000

ZMU05999

ZMU06285

ZMU06238

22.5˚22.5˚

ZMU05831

22.5

 The starboard side engine runs at the

idling speed.

4. Push the engine selector switch three times to operate the three engines.

EMU35125

Shifting

EWM00181

time lag when the gear is shifted until the engine speed has decreased sufficiently. To shift out of neutral

1. Pull the neutral interlock trigger up (if equipped).

1. Neutral interlock trigger

2. Move the control lever firmly and crisply forward (for forward gear) or backward (for reverse gear) 22.5 (a detent can felt).

Before shifting, make sure there are no swimmers or obstacles in the water near you.

Warm up the engine before shifting into gear. Until the engine is warm, the idle speed may be higher than normal. The control lever of the Digital electronic control can be operated even at high engine speeds. However, gear shifting will not work until the engine speed has automatically decreased to a speed at which actual gear shifting is possible. As a result, for quick gear shifting there could be a

Page 77

To shift from in gear (forward/reverse) to

WARNING

NOTICE

ZMU06239

ZMU05832

ZMU06236

ZMU05829

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 control lever firmly and crisply into the neutral position.

Operation

EMU31743

Stopping boat

EWM01511

 Do not use the reverse function to slow

down or stop the boat as it could cause you to lose control, be ejected, or impact the steering wheel or other parts of the boat. This could increase the risk of serious injury. It could also damage the shift mechanism.

 Do not shift into reverse while traveling

at planing speeds. Loss of control, boat swamping, or damage to the boat could occur.

The boat is not equipped with a separate braking system. Water resistance stops it after the throttle lever is moved back to idle. The stopping distance varies depending on gross weight, water surface conditions, and wind direction.

EMU35892

Operating the port / center /

starboard engine

The outboard motor to be used can be selected with the main switch or Start/Stop button.

ECM01741

Be sure to tilt the unoperated motor up. Otherwise water could enter the exhaust

Page 78

Operation

ZMU06003

ZMU05999

ON ON

ZMU06004

ZMU07323

ZMU06001

pipe due to the wave action, causing engine trouble.

1. Port side control lever

2. Starboard side control lever

3. Port side engine

4. Center engine

5. Starboard side engine

Operating three outboard motors

 Operate the port side engine using the port

side control lever.

 When all engines have started, the center

engine will run at the average speed of port side and starboard side engines’ speeds.

 Operate the starboard side engine using

the starboard side control lever.

Operating the port side engine and starboard side engine

Page 79

Operation

ZMU06005

ZMU07324

ZMU06006

ZMU06007

ZMU07325

ZMU06008

 Operate the port side engine using the port

side control lever.

 Operate the starboard side engine using

the starboard side control lever.

Operating the port side engine and center engine

 Operate the port side engine using the port

side control lever.

 Operate the center engine using the star-

board side control lever.

Operating the center engine and starboard side engine

Page 80

Operation

ON ON

ZMU06009

ZMU07326

ZMU06002

ZMU06010

ZMU07327

 Operate the center engine using the port

side control lever.

 Operate the starboard side engine using

the starboard side control lever.

Operating the center engine

 Operate the center engine using the port

side control lever.

Page 81

Operation

PC S PC S PC S PC S PC SPC S

PC S PC S PC S PC SPC SPC S

ZMU06011

EMU35902

Boat direction

The illustrations below indicate the boat direction when operating the three outboard motors.

When using the port side engine, center engine and starboard side engine

:Boat direction and turning force

The size of the arrow is proportional to the turning force.

:Propulsion

Page 82

Operation

PC S PC S PC S PC S PC SPC S

ZMU06012

When using the port side engine and starboard side engine

:Boat direction and turning force

The size of the arrow is proportional to the turning force.

:Propulsion

Page 83

When using the center engine

PC S PC S PC S PC S

ZMU06013

:Boat direction and turning force

The size of the arrow is proportional to the turning force.

:Propulsion

Operation

Page 84

Operation

TIP:

ZMU06309

Troll stop

SET

CANCEL

ZMU07256

ZMU08536

EMU30881

Trolling

EMU41832

Adjusting trolling speed

When the control lever is either in the forward position or in the reverse position and the throttle is in the fully closed position, you can randomly adjust the trolling speed between 600 r/min and 1000 r/min by increasing or decreasing it approximately by 50 r/min. The display will show the engine speed when the engine speed is increased from the fully closed position during trolling speed setting mode. When the throttle is returned to the fully closed position, the display will show the trolling speed again. When the engine is turned off or when the engine speed exceeds 3000 r/min, trolling speed setting mode will be released. For details, see the attached operation manual.

 Trolling is affected by currents and other

operating conditions and may differ from the actual engine speed.

 When warming up a cold engine, the troll-

ing speed cannot be decreased below the specified engine idle speed.

EMU27822

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.

EMU35805

Procedure for single station models and dual station models (main station)

1. The engine can be turned off either by pressing the Start/Stop button or by turning the main switch to the “ ” (off) position. After the engine has been turned off using the Start/Stop button, turn the main switch to the “ ” (off) position.

Page 85

Operation

TIP:

ZMU06247

OFF

START

ONOFF START

ZMU04599

OFF

ZMU07171

OFFOFF

ON ON

ZMU05833

OFFOFF

ON ON

OFF

ZMU06014

ZMU07148

ZMU07149

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).

2. Remove the key if the boat will be left unattended.

EMU35912

Procedure for dual station models (sub station)

1. Press the Start/Stop button until the en-

Page 86

Operation

TIP:

WARNING

ZMU07147

ZMU07148

ZMU07149

OFF

ZMU07171

OFF

ZMU07172

gine comes to a complete stop. When the engine has been stopped from the sub station, be sure to turn the main switch on the main station to “ ”.

The engine can also be stopped by pulling the engine shut-off cord and removing the clip from the engine shut-off switch, then turning the main switch on the main station to “ ” (off).

2. Remove the key if the boat will be left unattended.

EMU27865

Trimming outboard motor

EWM00741

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.

Page 87

Operation

WARNING

ZMU06259

ZMU05834

ZMU05835

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.

1. Trim operating angle

EMU27889

Adjusting trim angle (Power trim and tilt)

EWM00754

switch while the boat is moving.

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

 Be sure all people are clear of the out-

board 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

Page 88

Operation

TIP:

ZMU05964

1. Power trim and tilt switch

To raise the bow (trim-out), press the switch “ ” (up). To lower the bow (trim-in), press the switch “ ” (down). Make test runs with the trim set to different angles to find the position that works best for your boat and operating conditions.

EMU27913

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 Up

Too much trim-out puts the bow of the boat too high in the water. Performance and economy are decreased because the hull of the boat is pushing the water and there is more air drag. Excessive trim-out can also cause the propeller to ventilate, which reduces performance further, and the boat may “porpoise” (hop in the water), which could throw the operator and passengers overboard.

Bow Down

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

Depending on the type of boat, the outboard

Page 89

motor trim angle may have little effect on the

WARNING

NOTICE

ZMU06236

ZMU05829

ZMU06280

trim of the boat when operating.

EMU27948

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 case from damage by collision with obstructions, and also to reduce salt corrosion.

EWM01544

Make sure that all people are clear of the outboard motor when tilting the outboard motor up and down. Body parts can be crushed between the outboard motor and the clamp bracket when the outboard motor is trimmed or tilted.

ECM00993

Operation

 Before tilting the outboard motor, fol-

low the procedure under “Stopping engine” in this chapter. Never tilt the outboard motor while the engine is running. Severe damage from overheating can result.

 To prevent the cooling water passages

from becoming frozen when the ambient temperature is 5C (41F) or below, tilt the outboard motor up after it has been stopped 30 seconds or more.

EMU3550B

Procedure for tilting up (power trim and tilt models)

1. Place the control lever in neutral.

2. Press the power trim and tilt switch “ ” (up) until the outboard motor has tilted up completely.

Page 90

Operation

ZMU05837

ZMU05838

ZMU06020

ZMU05839

ZMU05824

3. Set the tilt support lever 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.

[EWM00263] 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 89.

[ECM01642]

4. Once the outboard motor is supported with the tilt support lever, press the power trim and tilt switch “ ” (down) to retract the trim rods. NOTICE: Make sure

Page 91

that the trim rods retracts completely

ZMU05856

ZMU06258

ZMU05840

ZMU05841

ZMU06021

ZMU05842

during mooring. This protects the rods from marine growth and corrosion, which could damage the power trim and tilt mechanism. [ECM00253]

EMU35517

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.

Operation

3. Push the power trim and tilt switch “ ” (down) to lower the outboard motor to the desired position.

Page 92

Operation

NOTICE

TIP:

ZMU06236

ZMU05829

ZMU06280

EMU28063

Shallow water

EMU42221

Power trim and tilt models

The outboard motor can be tilted up partially to allow operation in shallow water.

ECM01491

 If the engine speed is suddenly in-

creased when the outboard motor is partially tilted up, the power trim and tilt unit could be damaged.

 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.

When the outboard motor is partially tilted up for shallow water operation, the engine speed may be controlled around 2500 r/min. This occurs due to protect the power trim and tilt unit and does not indicate a malfunction. For instructions on de-activating the engine speed control system, see page 87.

EMU35237

Procedure for power trim and tilt models

1. Place the control 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.

[EWM01851]

Page 93

Operation

NOTICE

ZMU05837

ZMU05838

ZMU06020

ZMU06236

ZMU05829

ZMU06258

motor may hits an object in the water as tilting down.

1. Close the throttle so that the engine slows to idle speed.

2. After the engine is at idle speed in gear move the control lever firmly and crisply into the neutral position.

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.

EMU42232

De-activating the engine speed control system

ECM02501

This procedure must be done out of the shallow water. Otherwise, the outboard

3. Press the power trim and tilt switch and tilt the outboard motor fully down.

Page 94

Operation

ZMU05840

ZMU05841

ZMU06021

Operating in water containing mud, sand, silt, debris, or vegetation

Mud, sand, silt, debris, and vegetation in the water may restrict water flow into the cooling water inlet covers or clog internal water passages. Check and clean the cooling water inlet covers frequently when operating in these conditions. Flush the engine with clean, fresh water after use in these environments. Consult your dealer if normal water flow can not be restored by cleaning the cooling water inlet covers or flushing with fresh water.

EMU41371

Operating in other conditions

Operating in salt water

After operating in saltwater, brackish water, or water high in other minerals, flush the cooling system with fresh water to minimize corrosion and clogging of the cooling water passages with deposits. Also, rinse the exterior of the outboard motor with fresh water.

Page 95

Maintenance

WARNING

NOTICE

ZMU05843

EMU31845

Transporting and storing

outboard motor

EWM02641

 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. Tighten se-

curely the fuel valve when transporting and storing the outboard motor.

 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.

ECM02441

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. When the outboard motor is tilted prolonged time for mooring or trailering the boat, close the fuel valve.

EMU35581

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.

ECM01721

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

Keep the outboard motor in the attitude shown when transporting and storing it.

When storing the outboard motor for prolonged time, fuel must be drained from the fuel tank. The deteriorated fuel could clog the fuel line causing engine start difficulty or malfunction.

Leaking fuel is a fire hazard. When trailering the boat, close the fuel valve to prevent fuel from leaking. The outboard motor should be transported and stored in the normal running position. If

EMU28306

Procedure

EMU41321

Draining the gasoline from the vapor separator

Gasoline in the vapor separator must be drained before storing the outboard motor.

Page 96

Maintenance

TIP:

NOTICE

ZMU07209

ZMU05844

Have a Yamaha dealer drain the gasoline from the vapor separator.

EMU41142

Cleaning the outboard motor

When cleaning the outboard motor, the top cowling must be installed.

1. Wash the exterior of the outboard motor using fresh water. NOTICE: Do not

spray water into the air intake.

1. Air intake

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

EMU41072

Lubrication

1. Change the gear oil. For instructions, see page 102. Check the gear oil for the presence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use.

2. Lubricate all grease fittings. For further details, see page 97.

For long-term storage, fogging the engine with fogging oil is recommended. Contact your Yamaha dealer for information about fogging oil and procedures for your outboard motor.

[ECM01841]

EMU28446

Flushing power unit

Perform this procedure right after operation for the most thorough flushing.

ECM01531

Do not perform this procedure while the engine is running. The water pump may be damaged and severe damage from overheating can result.

1. After shutting off the engine, unscrew the garden hose connector from the fitting on the bottom cowling.

1. Fitting

2. Garden hose connector

3. Garden hose adapter

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.

Page 97

Maintenance

TIP:

WARNING

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

[ECM00542]

 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 89.

EMU28463

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. Touch-up paint is available from your Yamaha dealer.

EMU2847E

Periodic maintenance

EWM01872

These procedures require mechanical skills, tools, and supplies. If you do not have the proper skills, tools, or supplies

to perform a maintenance procedure, have a Yamaha dealer or other qualified mechanic do the work. The procedures involve disassembling the motor and exposing dangerous parts. To reduce the risk of injury from moving, hot, or electrical parts:

 Turn off the engine and keep the key(s)

and engine shut-off cord (lanyard) with you when you perform maintenance unless otherwise specified.

 The power trim and tilt switches oper-

ate 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 han-

dling hot parts or fluids.

 Always completely reassemble the mo-

tor before operation.

EMU28512

Replacement parts

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

EMU34152

Severe operating conditions

Severe operating conditions involve one or more of the following types of operation on a regular basis:

 Operating continuously at or near maxi-

mum engine speed (rpm) for many hours

Page 98

Maintenance

 Operating continuously at a low engine

speed (rpm) for many hours

 Operating without sufficient time for engine

to warm up and cool down

 Frequent quick acceleration and decelera-

tion

 Frequent shifting  Frequently starting and stopping the en-

gine(s)

 Operation that fluctuates often between

light and heavy cargo loads Outboard motors operating under any of these above conditions require more frequent maintenance. Yamaha recommends that you do this service twice as often as specified in the maintenance chart. For example, if a particular service should be done at 50 hours, do it instead at 25 hours. This will help prevent more rapid deterioration of engine components.

Page 99

Maintenance

TIP:

EMU46071

Maintenance chart 1

 Refer to the sections in this chapter for explanations of each owner-specific action.  The maintenance cycle on these charts assume usage of 100 hours per year and regular

flushing of the cooling water passages. Maintenance frequency should be adjusted when

operating the engine under adverse conditions such as extended trolling.

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

checks.

 Expendable or consumable parts and lubricants will lose their effectiveness over time and

through normal usage regardless of the warranty period.

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

be flushed with clean water after each use. The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer.

Initial Every

Item Actions

Inspection or

Anode(s) (external)

Anode(s) (internal) *1

Anode(s) (internal) *2

Battery (electrolyte level, terminal)

Cooling water leakage

Cowling lock lever Inspection 56, 58

Engine starting condition/noise

Engine idle speed/noise

Engine oil Replacement —

Engine oil filter (cartridge)

replacement as necessary

Inspection or replacement as necessary

Replacement —

Inspection 104

Fill, charging or replacing as necessary

Inspection or replacement as necessary

Inspection 61

Inspection 99

Replacement —

20 hours

(3 months)

100 hours

(1 year)

300 hours

(3 years)

500 hours

(5 years)

Page

104

—

Page 100

Maintenance

Initial Every

Item Actions

Fuel filter (can be disassembled)

Fuel line (High pressure)

Fuel line (Low pressure)

Fuel pump

Fuel/engine oil leakage

Gear oil Replacement 102

Greasing points Greasing 97

Clamp bracket bolt (through tube)

Impeller/water pump housing

OCV (Oil Control Valve) filter

Power trim and tilt unit

Propeller/propeller nut/cotter pin

PCV (Pressure Control Valve)

Spark plug(s)

Inspection or replacement as necessary

Inspection —

Inspection or replacement as necessary

Inspection —

Inspection or replacement as necessary

Inspection —

Inspection and greasing

Inspection or replacement as necessary

Replacement —

Inspection 60

Inspection or replacement as necessary

20 hours

(3 months)

100 hours

(1 year)

300 hours

(3 years)

500 hours

(5 years)

Page

—

100

—