Yamaha Z300C, LZ300C User Manual

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OWNER’S MANUAL

Z300C LZ300C

U.S.A.Edition

LIT-18626-05-69

6D0-28199-11

EMU25071

ZMU01690

Read this owner’s manual carefully before operating your outboard motor.

Important manual information

EMU25100

To the owner

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

The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

EWM00780

WARNING

Failure to follow WARNING instructions could result in severe injury or death the machine operator, a bystander, or a person inspecting or repairing the outboard motor.

ECM00700

CAUTION:

A CAUTION indicates special precautions that must be taken to avoid damage to the outboard motor.

al, please consult your Yamaha dealer.

NOTE:

The Z300TR, LZ300TR 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.

EMU25110

Z300C, LZ300C

OWNER’S MANUAL

1st edition, August 2003

Any reprinting or unauthorized use

without the written permission of

Yamaha Motor Corporation, USA

is expressly prohibited.

Printed in Japan

P/N LIT-18626-05-69

NOTE:

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

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

General information ..........................1

Identification numbers record.......... 1

Outboard motor serial number .......... 1

Key number....................................... 1

Emission control information ........... 1

North American models..................... 1

Star labels ......................................... 2

Safety information ........................... 3

Important labels............................... 4

Warning labels ..................................4

Caution labels ...................................5

Basic boating rules (Rules of the

road) .............................................. 5

Steering and sailing rules and sound

signals............................................. 5

Rules when encountering vessels .... 6

Other special situations..................... 7

Fueling instructions ......................... 9

Gasoline............................................ 9

Engine oil ..........................................9

Battery requirement......................... 9

Battery specifications ...................... 10

Propeller selection......................... 10

Start-in-gear protection ................. 11

Basic components ..........................12

Main components.......................... 12

Remote control................................ 12

Remote control lever....................... 13

Neutral interlock trigger................... 13

Neutral throttle lever........................ 14

Free accelerator.............................. 14

Throttle friction adjuster................... 14

Engine stop lanyard switch .............15

Main switch .....................................16

Power trim and tilt switch on remote

control ........................................... 16

Power trim and tilt switch on bottom

engine cowling .............................. 17

Power trim and tilt switches (twin

binnacle type) ............................... 17

Trim tab with anode ........................ 18

Tilt support lever for power trim and

tilt or hydro tilt model..................... 18

Top cowling lock lever (pull up

type).............................................. 18

Flushing device ...............................19

Digital tachometer ...........................19

Oil level indicator (digital type) ........19

Overheat warning indicator (digital

type) .............................................. 20

Speedometer (digital type) .............. 20

Trim meter (digital type) ..................21

Hour meter (digital type).................. 21

Trip meter........................................21

Clock ...............................................22

Fuel gauge ......................................22

Fuel warning indicator ..................... 22

Low battery voltage warning

indicator ........................................23

Fuel management meter ................. 23

Fuel flow meter................................ 23

Fuel consumption meter.................. 24

Fuel economy.................................. 24

Twin-engine speed synchronizer ....25

Water separator warning indicator ..25

Warning system ............................ 26

Overheat warning (twin engines) ....26

Oil level warning and oil filter

clogging warning ........................... 26

Operation ......................................... 28

Installation..................................... 28

Mounting the outboard motor .......... 28

Breaking in engine ........................ 29

Procedure for HPDI models ............30

Preoperation checks ..................... 30

Fuel .................................................30

Oil....................................................30

Controls...........................................31

Engine ............................................. 31

Operation after a long period of

storage .......................................... 31

Filling fuel and engine oil .............. 32

Ring Free Fuel Additive................... 32

Filling oil for oil injection models...... 32

Oil level indicator operation.............34

Operating engine .......................... 35

Feeding fuel ....................................35

Starting engine ................................ 35

Warming up engine....................... 37

Electric start and prime start

Table of contents

models .......................................... 37

Shifting .......................................... 37

Forward (tiller handle and remote

control models) ............................. 37

Reverse........................................... 38

Stopping engine ............................ 38

Procedure ....................................... 38

Trimming outboard motor.............. 39

Adjusting trim angle ........................ 39

Adjusting boat trim ..........................40

Tilting up and down ....................... 41

Procedure for tilting up.................... 41

Procedure for tilting down (power

trim and tilt/power tilt models) ....... 43

Cruising in shallow water .............. 43

Power trim and tilt models / power

tilt models...................................... 43

Cruising in other conditions........... 44

Maintenance..................................... 45

Specifications ................................ 45

Transporting and storing outboard

motor ........................................... 46

Storing outboard motor ...................46

Procedure ....................................... 46

Lubrication (oil injection models)..... 47

Cleaning and anticorrosion

measures ...................................... 48

Battery care..................................... 48

Flushing power unit......................... 49

Cleaning the outboard motor .......... 49

Checking painted surface of

motor............................................. 50

Periodic maintenance.................... 50

Replacement parts.......................... 50

Maintenance chart .......................... 51

Maintenance chart (additional)........ 52

Greasing ......................................... 53

Cleaning and adjusting spark

plug ............................................... 53

Checking fuel system...................... 54

Inspecting fuel filter ......................... 55

Cleaning fuel filter ...........................55

Inspecting idling speed ................... 56

Checking water in engine oil tank ...57

Checking wiring and connectors ..... 57

Exhaust leakage.............................. 57

Water leakage ................................. 57

Checking power trim and tilt

system........................................... 57

Checking propeller ..........................58

Removing the propeller ................... 59

Installing the propeller ..................... 59

Changing gear oil ............................ 60

Inspecting and replacing

anode(s)........................................61

Checking battery (for electric start

models) .........................................61

Connecting the Battery.................... 62

Disconnecting the battery................ 63

Checking top cowling ......................63

Coating the boat bottom..................63

Trouble Recovery............................ 64

Troubleshooting ............................ 64

Temporary action in emergency ... 67

Impact damage ...............................67

Running single engine..................... 67

Replacing fuse ................................68

Power trim and tilt will not operate ..68

Engine fails to operate .................. 69

Low oil level warning activates........69

Treatment of submerged motor .... 70

Procedure........................................ 70

Consumer information ................... 71

Important warranty information for

U.S.A. and Canada ..................... 71

YAMAHA MOTOR

CORPORATION, U.S.A. OUTBOARD MOTOR TWO

YEAR LIMITED WARRANTY ..... 73

IMPORTANT WARRANTY

INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE

U.S.A. OR CANADA ................... 76

General information

EMU25170

Identification numbers record

EMU25180

Outboard motor serial number

The outboard motor serial number is stamped on the label attached to the port side of the clamp bracket or the upper part of the swivel 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.

ZMU01854

1. Outboard motor serial number location

reference in case you need a new key.

1. Key number

EMU25220

Emission control information

EMU25230

North American models

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

EMU25251

Approval label of emission control certificate

This label is attached to the bottom cowling. New Technology ; (4-stroke/HPDI) DFI

EMU25190

Key number

If a main key switch is equipped with the motor, the key identification number is stamped on your key as shown in the illustration. Record this number in the space provided for

ZMU01855

General information

ZMU01856

EMU25260

Manufactured date label

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

ZMU01857

EMU25271

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.

ZMU01946

EMU25280

One Star—Low Emission

The one-star label identifies engines that meet the Air Resources Board’s 2001 exhaust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two-stroke engines. These engines are equivalent to the U.S. EPA’s 2006 standards for marine engines.

ZMU01702

EMU25290

Two Stars—Very Low Emission

The two-star label identifies engines that meet the Air Resources Board’s 2004 exhaust emission standards. Engines meeting these standards have 20% lower emissions than One Star-Low-Emission engines.

General information

ZMU01703

EMU25300

Three Stars—Ultra Low Emission

The three-star label identifies engines that meet the Air Resources Board’s 2008 exhaust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines.

ZMU01704

EMU25360

Safety information

●

Before mounting or operating the outboard motor, read this entire manual. Reading it should give you an understanding of the motor and its operation Before operating the boat, read any own-

●

er’s or operator’s manuals supplied with it and all labels. Be sure you understand each item before operating. Do not overpower the boat with this out-

●

board motor. Overpowering the boat could result in loss of control. The rated power of

the outboard should be equal to or less than the rated horsepower capacity of the boat. If the rated horsepower capacity of the boat is unknown, consult the dealer or boat manufacturer. Do not modify the outboard. Modifications

●

could make the motor unfit or unsafe to use. Never operate after drinking alcohol or tak-

●

ing drugs. About 50% of all boating fatalities involve intoxication. Have an approved personal flotation de-

●

vice (PFD) on board for every occupant. It is a good idea to wear a PFD whenever boating. At a minimum, children and nonswimmers should always wear PFDs, and everyone should wear PFDs when there are potentially hazardous boating conditions.

●

Gasoline is highly flammable, and its vapors are flammable and explosive. Handle and store gasoline carefully. Make sure there are no gas fumes or leaking fuel before starting the engine.

●

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.

●

Check throttle, shift, and steering for proper operation before starting the engine.

●

Attach the engine stop switch lanyard cord to a secure place on your clothing, or your arm or leg while operating. If you accidentally leave the helm, the cord will pull from the switch, stopping the engine. Know the marine laws and regulations

●

where you will be boating—and obey them. For basic boating rules, see “Rules

General information

of the road” on page 5.

●

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

●

Tell someone where you are going: leave a Float Plan with a responsible person. Be sure to cancel the Float Plan when you return. Use common sense and good judgment

●

when boating. Know your abilities, and be sure you understand how your boat handles under the different boating conditions you may encounter. Operate within your limits, and the limits of your boat. Always operate at safe speeds, and keep a careful watch for obstacles and other traffic.

●

Always watch carefully for swimmers during the engine operation.

●

Stay away from swimming areas.

●

When a swimmer is in the water near you

shift into neutral and shut off the engine. Be informed about boating safety. Additional publications and information can be obtained from many organizations, including the following:

United States Coast Guard

Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Affairs U.S. Coast Guard Headquarters Washington, D.C. 20593-0001 Boating Safety Hotline: 1-800-368-5647

National Marine Manufacturers Association (NMMA)

401 N. Michigan Ave. Chicago, Il 60611

Marine Retailers Association of America

155 N. Michigan Ave. Chicago, Il 60601

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Important labels

EMU25392

Warning labels

ZMU01858

ZMU01948

EMU25401

Label

EWM01260

WARNING

●

Be sure shift control is in neutral before starting engine. (except 2HP)

●

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

●

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

EMU25411

Label

EWM01280

WARNING

Use only a counterclockwise rotation

●

General information

propeller with this engine.

●

Counterclockwise propellers are

marked with a letter “L” after the size

indication.

●

The wrong type of propeller could

cause the boat to go in an unexpected

direction, which could lead to accident.

EMU25451

Label

ENGINE OIL ONLY

●

Pour the engine oil into this oil tank, not

gasoline. RECOMMENDED OIL: YAMALUBE 2 STROKE OUTBOARD OIL or an equivalent TC-W3 certified ouboard oil.

EWM01270

WARNING

Do not add gasoline to the oil tank. Fire explosion could result.

EMU25461

Caution labels

ZMU01949

EMU25491

Label

ECM01300

CAUTION:

UNLEADED GASOLINE ONLY Gasoline containing lead can cause performance loss and engine damage. Refer to Owner’s Manual.

EMU25500

Basic boating rules (Rules of

the road)

Just as there are rules which apply when you are driving on streets and high ways, there are waterway rules which apply when you are driving your boat. These rules are used internationally, and are also enforced by the United States Coast Guard and local agencies. You should be aware of these rules, and follow them whenever you encounter another vessel on the water. Several sets of rules prevail according to geographic location, but are all basically the same as the International Rules of the Road. The rules presented here in your Owner’s Manual are condensed, and have been provided for your convenience only. Consult your local U.S. Coast Guard Auxiliary or Department of Motor Vehicles for a complete set of rules governing the waters in which you will be using your boat.

EMU25510

Steering and sailing rules and sound signals

Whenever two vessels on the water meet one another, one vessel has the right-ofway; it is called the “stand-on” vessel. The vessel which does not have the right-of-way is called the “give-way” or “burdened” vessel. These rules determine which vessel has the right-of-way, and what each vessel should do.

Stand-on vessel

The vessel with the right-of-way has the duty to continue its course and speed, except to avoid an immediate collision. When you maintain your direction and speed, the other vessel will be able to determine how best to avoid you.

General information

Give-way vessel

The vessel which does not have the right-ofway has the duty to take positive and timely action to stay out of the way of the Stand-On vessel. Normally, you should not cross in front of the vessel with the right-of-way. You should slow down or change directions briefly and pass behind the other vessel. You should always move in such a way that the operator of the other vessel can see what you are doing.

“The general prudential rule”

This rule is called Rule 2 in the International Rules and says, “In obeying and construing these rules due regard shall be had to all dangers of navigation and collision, and to any special circumstances, which may render a departure from the above rules necessary in order to avoid immediate danger.” In other words, follow the standard rules except when a collision will occur unless both vessels try to avoid each other. If that is the case, both vessels become “Give-Way” vessels.

EMU25520

Rules when encountering vessels

There are three main situations which you may encounter with other vessels which could lead to a collision unless the Steering Rules are followed:

Meeting:

sel head-on)

Crossing:

er vessel’s path)

Overtaking:

passed by another vessel) In the following illustration, your boat is in the center. You should give the right-of-way to any vessels shown in white area (you are the Give-Way vessel). Any vessels in the shaded area must yield to you (they are the Give-

(you are approaching another ves-

(you are traveling across the oth-

(you are passing or being

Way vessels). Both you and the meeting vessel must alter course to avoid each other.

Meeting

If you are meeting another power vessel head on, and are close enough to run the risk of collision, neither of you has the right-ofway! Both of you should alter course to avoid an accident. You should keep the other vessel on your port (left) side. This rule doesn’t apply if both of you will clear one another if you continue on your set course and speed.

Crossing

When two power driven vessels are crossing each other’s path close enough to run the risk of collision, the vessel which has the other on the starboard (right) side must keep out of the way of the other. If the other vessel is on your right, you must keep out of its way; you are the Give-Way vessel. If the other vessel is on your port (left) side, remember that you should maintain course and direc-

General information

tion, provided the other vessel gives you the right-of-way as it should.

Overtaking

If you are passing another vessel, you are the “Give-Way” vessel. This means that the other vessel is expected to maintain its course and speed. You must stay out of its way until you are clear of it. Likewise, if another vessel is passing you, you should maintain your speed and direction so that the other vessel can steer itself around you.

EMU25530

Other special situations

There are three other rules you should be aware of when driving your boat around other vessels.

Narrow channels and bends

When navigating in narrow channels, you should keep to the right when it is safe and practical to do so. If the operator of a powerdriven vessel is preparing to go around a bend that may obstruct the view of other water vessels, the operator should sound a prolonged blast on the whistle (4 to 6 seconds). If another vessel is around the bend, it too should sound the whistle. Even if no reply is heard, however, the vessel should still proceed around the bend with caution. If you navigate such waters with your boat, you will need to carry a portable air horn, available from local marine supply stores.

Fishing vessel right-of-way

All vessels which are fishing with nets, lines or trawls are considered to be “fishing vessels” under the International Rules. Vessels with trolling lines are not considered fishing vessels. Fishing vessels have the right-ofway regardless of position. Fishing vessels cannot, however, impede the passage of other vessels in narrow channels.

Sailing vessel right-of-way

Sailing vessels should normally be given the right-of-way. The exceptions to this are:

1. When the sailing vessel is overtaking the power-driven vessel, the power-driven vessel has the right-of-way.

2. Sailing vessels should keep clear of any fishing vessel.

3. In a narrow channel, a sailing vessel should not hamper the safe passage of a power-driven vessel which can navigate only in such a channel.

Reading buoys and other markers

The waters of the United states are marked for safe navigation by the lateral system of buoyage. Simply put, buoys and markers have an arrangement of shapes, colors, numbers and lights to show which side of the buoy a boater should pass on when navigating in a particular direction. The markings on these buoys are oriented from the perspective of being entered from seaward (the boater is going towards the port). This means that red buoys are passed on the starboard (right) side when proceeding from open water into port, and black buoys are to port (left) side. When navigating out of port, your position with respect to the buoys should be reversed; red buoys should be to port and black buoys to starboard. Many bodies of water used by boaters are entirely within the boundaries of a particular

General information

state. The Uniform State Waterway Marking System has been devised for these waters. This system uses buoys and signs with distinctive shapes and colors to show regulatory or advisory information. These markers are white with black letters and orange boarders. They signify speed zones, restrict-

ed areas, danger areas, and general information. Remember, markings may vary by geographic location. Always consult local boating authorities before driving your boat in unfamiliar waters.

ZMU01708

General information

EMU25540

Fueling instructions

EWM00010

WARNING

GASOLINE AND ITS VAPORS ARE HIGHLY FLAMMABLE AND EXPLOSIVE!

●

Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition.

●

Stop engine before refueling.

●

Refuel in a well-ventilated area. Refuel portable fuel tanks off the boat.

●

Take care not to spill gasoline. If gasoline spills, wipe it up immediately with dry rags.

●

Do not overfill the fuel tank.

●

Tighten the filler cap securely after refueling.

●

If you should swallow some gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical attention.

●

If any gasoline spills onto your skin, immediately wash with soap and water. Change clothing if gasoline spills on it.

●

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

ECM00010

CAUTION:

Use only new clean gasoline which has been stored in clean containers and is not contaminated with water or foreign matter.

EMU25570

Gasoline

If knocking or pinging occurs, use a different

brand of gasoline or premium unleaded fuel.

Recommended gasoline:

Regular unleaded gasoline with a minimum octane rating of 86 (Pump Octane Number) = (R+M)/2

Gasohol

There are two types of gasohol: gasohol containing ethanol and that containing methanol. Gasohol containing ethanol can be used if ethanol content does not exceed 10% and the fuel meets minimum octane ratings. Yamaha does not recommended gasohol containing methanol because it can cause fuel system damage or engine performance problems.

EMU25660

Engine oil

Use Yamalube 2-M outboard oil. If Yamalube 2-M is not available, use only another outboard motor manufacturer’s factorybrand oil with TC-W3 rating.

Recommended engine oil:

YAMALUBE 2 STROKE OUTBOARD OIL

ECM01290

CAUTION:

Serious engine damage can result from the use of lower quality oil, including some commonly available oil brands with “TC-W3” on their label. To avoid the risk, use only Yamalube 2-M or, if necessary, another outboard motor manufacturer’s factory-brand TC-W3 oil.

EMU25700

Battery requirement

ECM01060

CAUTION:

Do not use a battery that does not meet

General information

the specified capacity. If a battery which does not meet specifications is used, the electric system could perform poorly or be overloaded, causing electric system damage.

For electric start models, choose a battery which meets the following specifications.

EMU25711

Battery specifications

Minimum cold cranking amps (CCA/ SAE):

512.0 A Minimum marine cranking amps (MCA/ ABYC):

675.0 A Minimum reserve capacity (RC/SAE):

182 minutes

NOTE:

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

EMU25740

Propeller selection

The performance of your outboard motor will be critically affected by your choice of propeller, as an incorrect choice could adversely affect performance and could also seriously damage the motor. Engine speed depends on the propeller size and boat load. If engine speed is too high or too low for good engine performance, this will have an adverse effect on the engine. Yamaha outboard motors are fitted with propellers chosen to perform well over a range of applications, but there may be uses where a propeller with a different pitch would be more appropriate. For a greater operating load, a smaller-pitch propeller is more suitable as it enables the correct engine speed to be maintained. Conversely, a larger-pitch

propeller is more suitable for a smaller operating load. Yamaha dealers stock a range of propellers, and can advise you and install a propeller on your outboard that is best suited to your application.

1. Propeller diameter in inches

2. Propeller pitch in inches

3. Type of propeller (propeller mark)

1. Propeller diameter in inches

2. Propeller pitch in inches

3. Type of propeller (propeller mark)

NOTE:

Select a propeller which will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boat load. If operating conditions such as light boat loads then allow the engine r/min to rise above the maximum recommended

General information

range, reduce the throttle setting to maintain the engine in the proper operating range.

For instructions on propeller removal and installation, see page 58.

EMU25770

Start-in-gear protection

Yamaha outboard motors or Yamaha-approved remote control units are equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is in neutral. Always select neutral before starting the engine.

Basic components

BATT

SPEED

mode

P S

EMU25792

Main components

NOTE:

* May not be exactly as shown; also may not be included as standard equipment on all models.

Z300C, LZ300C

13 14 15

1. Top cowling

2. Top cowling lock lever(s)

3. Trim tab (anode)

4. Propeller*

5. Cooling water inlet

6. Anti-cavitation plate

7. Anode

8. Clamp bracket

9. Tilt support lever

10. Flushing device

11. Power trim and tilt switch

12. Cooling water pilot hole

13. Remote control box (side mount type)*

14. Remote control box (binnacle mount type)*

17 18

SPEED

TRIP TIME BATT

set

YAMAHA

Km/h knot mph

km mile

mode

15. Switch panel (for use with binnacle type)*

16. Digital tachometer*

17. Digital speedometer*

18. Fuel management meter*

19. Remote oil tank*

EMU26180

Remote control

The remote control lever actuates both the shifter and the throttle. The electrical switches are mounted on the remote control box.

YAMAHA

FUEL MANAGEMENT

ECON SYNCTTL

set

mode

I/h gph

Km/L mpg

ZMU01860

Basic components

1. Power trim and tilt switch

2. Remote control lever

3. Neutral interlock trigger

4. Neutral throttle lever

5. Main switch / choke switch

6. Engine stop lanyard switch

7. Throttle friction adjuster

1. Remote control lever

2. Power trim and tilt switch

3. Free accelerator

4. Throttle friction adjuster

EMU26190

Remote control lever

Moving the lever forward from the neutral position engages forward gear. Pulling the lever back from neutral engages reverse. The engine will continue to run at idle until the lever is moved about 35° (a detent can be felt). Moving the lever farther opens the throttle, and the engine will begin to accelerate.

1. Neutral “”

2. Forward “”

3. Reverse “”

4. Shift

5. Fully closed

6. Throttle

7. Fully open

1. Neutral “”

2. Forward “”

3. Reverse “”

4. Shift

5. Fully closed

6. Throttle

7. Fully open

EMU26200

Neutral interlock trigger

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

1. Neutral interlock trigger

Basic components

erator button and move the remote control lever.

EMU26210

Neutral throttle lever

To open the throttle without shifting into either forward or reverse, put the remote control lever in the neutral position and lift the neutral throttle lever.

NOTE:

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

1. Fully open

2. Fully closed

EMU26230

Free accelerator

To open the throttle without shifting into either forward or reverse, push the free accel-

1. Fully open

2. Fully closed

3. Free accelerator

NOTE:

The free accelerator button can only be

●

used when the remote control lever is in the neutral position. After the button is pushed, the throttle be-

●

gins to open after the remote control lever is moved at least 35°. After using the free accelerator, return the

●

remote control lever to the neutral position. The free accelerator button will return automatically to its set position. The remote control will then engage forward and reverse normally.

EMU25970

Throttle friction adjuster

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

EWM00030

WARNING

Do not overtighten the friction adjuster. If

Basic components

there is too much resistance, it could be difficult to move throttle lever or grip, which could result in an accident.

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

EMU25990

Engine stop lanyard switch

The lock plate must be attached to the engine stop switch for the engine to run. The lanyard 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 lanyard will pull out the lock plate, stopping ignition to the engine. This will prevent the boat from running away under power.

EWM00120

WARNING

Attach the engine stop switch lanyard

●

to a secure place on your clothing, or

your arm or leg while operating.

●

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

●

during normal operation. Loss of engine power means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward.

NOTE:

The engine cannot be started with the lock plate removed.

1. Lanyard

2. Lock plate

1. Lanyard

2. Lock plate

EMU26090

Main switch

The main switch controls the ignition system; its operation is described below.

●

“”

(off)

With the main switch in the “” (off) posi- tion, the electrical circuits are off, and the key can be removed.

●

“”

(on)

With the main switch in the “” (on) posi- tion, the electrical circuits are on, and the key cannot be removed.

“”

●

With the main switch in the “” (start) po- sition, the starter motor turns to start the engine. When the key is released, it returns automatically to the “” (on) position.

(start)

Basic components

EMU26140

Power trim and tilt switch on remote control

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

NOTE:

For instructions on using the power trim and tilt switch, see pages 39 and 41.

Basic components

EMU26150

Power trim and tilt switch on bottom engine cowling

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

EWM01030

WARNING

Use the power trim and tilt switch located on the bottom engine cowling only when the boat is at a complete stop with the engine off. Attempting to use this switch while the boat is moving could increase the risk of falling overboard and could distract the operator, increasing the risk of collision with another boat or an obstacle.

ZMU01862

NOTE:

For instructions on using the power trim and tilt switch, see page 41.

EMU26161

Power trim and tilt switches (twin binnacle type)

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, then tilts it up. Pressing the switch “” (down) tilts the outboard mo- tor down and trims it down. When the switch is released, the outboard motor will stop in its current position.

NOTE:

On the dual engine control, the switch on

●

the remote control grip controls both outboard motors at the same time. For instructions on using the power trim

●

and tilt switches, see pages 39 and 41.

EMU26240

Trim tab with anode

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

EWM00840

WARNING

An improperly adjusted trim tab could cause difficult steering. Always test run after the trim tab has been installed or replaced to be sure steering is correct. Be sure you have tightened the bolt after adjusting the trim tab.

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

ECM00840

CAUTION:

The trim tab also serves as an anode to protect the engine from electrochemical corrosion. Never paint the trim tab as it will become ineffective as an anode.

Basic components

ZMU01863

EMU26340

Tilt support lever for power trim and tilt or hydro tilt model

To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp bracket.

ZMU01864

EMU26382

Top cowling lock lever (pull up type)

To remove the engine top cowling, pull up the lock lever(s) and lift off the cowling. When installing the cowling, check to be sure it fits properly in the rubber seal. Then lock the cowling by moving the lever(s) downward.

1. Trim tab

2. Bolt

3. Cap (if equipped)

Basic components

EMU26490

Digital tachometer

The tachometer shows the engine speed and has the following functions.

NOTE:

All segments of the display will light momentarily after the main switch is turned on and will return to normal thereafter.

ZMU01951

ZMU01865

EMU26460

Flushing device

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

NOTE:

For details on usage, see page 49.

1. Tachometer

2. Trim meter

3. Hour meter

4. Oil level indicator

5. Overheat warning indicator

6. Set button

7. Mode button

EMU26550

Oil level indicator (digital type)

This indicator shows the engine oil level. If the oil level falls below the lower limit, the warning indicator will start to blink. For further information, see page 26.

ECM00030

CAUTION:

Do not operate the engine without oil. Serious engine damage will occur.

ZMU01891

1. Flushing device

ZMU01866

ZMU01867

Basic components

1. Oil level indicator

EMU26581

Overheat warning indicator (digital type)

If the engine temperature rises too high, the warning indicator will start to blink. For further information on reading the indicator, see page 26.

ECM00050

CAUTION:

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

ZMU01868

1. Speedometer

2. Fuel gauge

3. Trip meter/clock/voltmeter

4. Warning indicator(s)

NOTE:

After the main switch is first turned on, all segments of the display come on as a test. After a few seconds, the gauge will change to normal operation. Watch the gauge when turning on the main switch to make sure all segments come on.

NOTE:

The speedometer displays km/h, mph, or knots, according to operator preference. Select the desired unit of measurement by setting the selector switch on the back of the gauge. See the illustration for settings.

1. Overheat warning indicator

EMU26600

Speedometer (digital type)

This gauge shows the boat speed.

1. Cap

2. Selector switch (for speed unit)

Basic components

3. Selector switch (for fuel sensor)

EMU26620

Trim meter (digital type)

This meter shows the trim angle of your outboard motor.

NOTE:

Memorize the trim angles that work best

●

for your boat under different conditions. Adjust the trim angle to the desired using the power trim and tilt switch.

●

If the trim angle of your motor exceeds the trim operating range, the top segment on the trim meter display will blink.

●

Changing the display format

●

Pressing the “” (mode) button chang- es the display format in the following pattern:

●

Total hours→Trip hours→Display off Resetting the trip hours

●

Simultaneously pressing the “” (set) and “” (mode) buttons for more than 1 second while the trip hours are displayed resets the trip counter to 0 (zero).

NOTE:

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

EMU26690

Trip meter

This gauge displays the distance the boat has traveled since the gauge was last reset. Press the “” (mode) button repeatedly until the indicator on the face of the gauge points to “” (trip). To reset the trip meter to zero, press the “” (set) and “” (mode) buttons at the same time.

ZMU01869

EMU26650

Hour meter (digital type)

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

ZMU01870

NOTE:

●

The trip distance is shown in kilometers or miles depending upon the unit of measurement selected for the speedometer.

●

The trip distance is kept in memory by battery power. The stored data will be lost if the battery is disconnected.

Basic components

EMU26700

tor switch.

Clock

Press the “” (mode) button repeatedly until the indicator on the face of the gauge points to “” (time). To set the clock, be sure the gauge is in the “” (time) mode. Press the “” (set) button; the hour display will begin blinking. Press the “” (mode) button until the desired hour is displayed. Press the “” (set) button again, the minute display will begin blinking. Press the “” (mode) button until the desired minute is displayed. Press the “” (set) button again to start the clock.

NOTE:

The fuel level reading can be affected by the position of the sensor in the fuel tank and the attitude of the boat in the water. Operation with bow-up trim or continuous turning can give false readings.

EMU26720

Fuel warning indicator

If the fuel level decreases to one segment, the fuel level warning segment will begin to blink.

ECM00880

NOTE:

The clock operates on battery power. Disconnecting the battery will stop the clock. Reset the clock after connecting the battery.

EMU26710

Do not continue to operate the engine with full throttle if a warning device has activated. Get back to the port within trolling engine speed.

Fuel gauge

The fuel level is indicated by eight segments. When all segments are showing, the fuel tank is full.

ECM00860

CAUTION:

The Yamaha fuel tank sensor differs from conventional sensors. Incorrectly setting the selector switch on the gauge will give false readings. Consult your Yamaha dealer on how to correctly set the selec-

ZMU01745

CAUTION:

1. Fuel level warning segment

Basic components

EMU26730

Low battery voltage warning indicator

If battery voltage drops, the display will automatically turn on and begin to blink.

ECM00870

CAUTION:

Get back to the port soon if a warning device has activated. For charging the battery, consult your Yamaha dealer.

1. Low battery indicator

EMU26740

Fuel management meter

The fuel management meter shows the state of the fuel consumption while the engine is running.

3. Water separator warning indicator (operates only if the sensor has been installed)

NOTE:

EMU26750

Fuel flow meter

The fuel flow meter displays the amount of fuel flow over a one hour period, at the current rate of engine operation. If twin engines are installed on your boat, the fuel flow meter displays the total fuel flow of both the port and starboard engines. It also displays “” (for port and starboard).

ZMU01748

1. Fuel ﬂow meter

2. Fuel consumption meter / Fuel economy meter / Twin engine speed synchronizer

ZMU01749

Use the “” (set) button to rotate the fuel flow display in the following order:

●

Press the “” (set) button once to display the fuel flow of the starboard engine. An

“” (for starboard) will also be displayed.

●

Press the “” (set) button a second time to display the fuel flow of the port engine. A “” (for port) will also be displayed.

●

Press the “” (set) button a third time to return the display to the total fuel flow of both engines. “” (for port and starboard) will also be displayed to indicate both the

port and starboard engines.

NOTE:

●

The fuel flow meter displays gallons/hour or liters/hour according to operator preference. Select the desired unit of measurement by setting the selector switch on the back of the gauge during installation.

1. Selector switch

●

The fuel consumption meter and fuel economy meter will indicate the same unit of measurement.

EMU26760

Fuel consumption meter

This gauge displays the total amount of fuel consumed since the gauge was last reset. Press the “” (mode) button repeatedly until the indicator on the face of the gauge points to total “” (total). To reset the total fuel consumption to zero, press the “” (set) and “” (mode) buttons at the same time.

Basic components

ZMU01751

EMU26770

Fuel economy

This gauge displays the distance per liter or gallon when cruising, and is only for reference use by the operator. Press the “” (mode) button repeatedly until the indicator on the face of the gauge points to “” (economy).

ZMU01752

NOTE:

If twin engines are installed on your boat, the gauge will only display the total fuel economy of both engines.

NOTE:

Fuel consumption varies greatly with boat

●

design, weight, propeller used, engine trim angle, sea conditions (including wind), and throttle position. Fuel consumption also varies slightly with the type of water (salt, fresh, and contaminate levels), air temperature and humidity, cleanliness of the boat

Basic components

bottom, engine mounting height, skill of the operator, and individual gasoline formulation (winter or summer fuel and amount of additives).

●

The Yamaha digital speedometer and fuel management meter calculates speed, miles traveled, and fuel economy by water movement at the stern of the boat. This distance can vary greatly from the actual distance traveled because of water currents, sea swells, and the condition of the water speed sensor (partially plugged or damaged).

●

Individual engines may slightly vary in their fuel consumption due to manufacturing variations. These variations can be even greater if the engines are of different year models. In addition, variations in propellers, even of the same basic dimensions of the same design, can also cause a slight variation in fuel consumption.

EMU26780

Twin-engine speed synchronizer

This gauge displays the difference in engine speed (r/min) between the port and starboard engines for reference purposes when synchronizing the two engines’ speeds. Press the “” (mode) button repeatedly until the indicator on the face of the gauge points to “” (synchronizer).

ZMU01754

1. Port engine speed is higher

2. Port engine speed is slightly higher

3. Engine speed is synchronized evenly between port and starboard engines

4. Starboard engine speed is slightly higher

5. Starboard engine speed is higher

NOTE:

If the two engines’ speeds are not synchronized while cruising, they can be synchronized by adjusting trim angle or throttle.

EMU26791

Water separator warning indicator

This indicator will blink when water has accumulated in the water separator. In such an event, stop the engine and drain the water from the separator.

NOTE:

This indicator only operates when a water separator sensor is equipped.

ZMU01753

ZMU01755

EMU26800

Warning system

ECM00090

CAUTION:

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

EMU26821

Overheat warning (twin engines)

This engine has an overheat warning device. If the engine temperature rises too high, the warning device will activate. Activation of warning device

●

The engine speed will automatically decrease to about 2000 r/min. The overheat warning indicator will light.

●

ZMU01757

The buzzer will sound.

●

Basic components

If the warning system has activated, stop the engine and check the cooling water inlet for clogging.

NOTE:

Dual engine drive users: Should the overheat warning system of one engine activate, the engine will slow down and the buzzer will sound. This will cause the other engine to slow down and the buzzer to sound. To switch off the warning activation on the engine not affected by overheating, turn off the main switch of the engine overheating.

EMU26841

Oil level warning and oil filter clogging warning

Oil injection models

This engine has an oil level warning system. If the oil level falls below the lower limit, the warning system will activate.

Activation of warning device

The engine speed will automatically de-

●

crease to about 2000 r/min.

Basic components

ZMU01871

The oil level warning indicator will light.

●

The buzzer will sound. If the warning system has been activated, stop the engine and check for the cause.

NOTE:

The warning for oil filter clogging is similar to the warnings for low oil level and overheating. To make troubleshooting easier, check for engine overheating first, then oil level, and finally oil filter clogging.

ZMU01872

1. Oil ﬁlter

ZMU01952

Operation

EMU26900

Installation

ECM00110

CAUTION:

Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or depth finder transducers) can create airborne water spray while the boat is cruising. Severe engine damage may result if the motor is operated continuously in the presence of airborne water spray.

NOTE:

During water testing check the buoyancy of the boat, at rest, with its maximum load. Check that the static water level on the exhaust housing is low enough to prevent water entry into the powerhead, when water rises due to waves when the outboard is not running.

EMU26910

Mounting the outboard motor

EWM00820

WARNING

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.

●

The information presented in this sec-

tion is intended as reference only. It is

not possible to provide complete in-

structions for every possible boat and

motor combination. Proper mounting

depends in part on experience and the

specific boat and motor combination.

EWM00830

WARNING

Improper mounting of the outboard motor could result in hazardous conditions such as poor handling, loss of control, or fire hazards. Observe the following:

●

For permanently mounted models, your dealer or other person experienced in proper rigging should mount the motor. If you are mounting the motor yourself, you should be trained by an experienced person.

●

For portable models, your dealer or other person experienced in proper outboard motor mounting should show you how to mount your motor.

Mount the outboard motor on the center line (keel line) of the boat, and ensure that the boat itself is well balanced. Otherwise the boat will be hard to steer. For boats without a keel or which are asymmetrical, consult your dealer.

1. Center line (keel line)

ZMU01873

Operation

1. Center line (keel line)

EMU26930

Mounting height (boat bottom)

To run your boat at optimum efficiency, the water resistance (drag) of the boat and outboard motor must be made as little as possible. The mounting height of the outboard motor greatly affects the water resistance. If the mounting height is too high, cavitation tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the engine to overheat. If the mounting height is too low, the water resistance will increase and thereby reduce engine efficiency. Mount the outboard motor so that the anti-cavitation plate is in alignment with the bottom of the boat.

board 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.

●

For instructions on setting the trim angle of the outboard motor, see page 39.

EMU27041

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.

ECM00750

CAUTION:

●

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

●

Do not use premixed fuel in this engine because it could cause carbon deposits on the fuel injector and engine trouble.

●

Follow the instructions for break-in carefully.

NOTE:

Leave the label pictured below on the top cowling until the break-in procedure has been completed. It may be removed afterwards.

ZMU01762

NOTE:

●

The optimum mounting height of the out-

ZMU01945

EMU27090

Procedure for HPDI models

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

1. First 10 minutes:

Run the engine at the lowest possible speed. A fast idle in neutral is best.

2. Next 50 minutes:

Do not exceed half throttle (approximately 3000 r/min). Vary engine speed occasionally. If you have an easy-planing boat, accelerate at full throttle onto plane, then immediately reduce the throttle to 3000 r/min or less.

3. Second hour:

Accelerate at full throttle onto plane, then reduce engine speed to three-quarter throttle (approximately 4000 r/min). Vary engine speed occasionally. Run at full throttle for one minute, then allow about 10 minutes of operation at three-

Operation

quarter throttle or less to let the engine cool.

4. Third through tenth hours: Avoid operating at full throttle for more than 5 minutes at a time. Let the engine cool between full-throttle runs. Vary engine speed occasionally.

5. After the first 10 hours: Operate the engine normally.

EMU27100

Preoperation checks

EWM00080

WARNING

If any item in the preoperation check is not working properly, have it inspected and repaired before operating the outboard motor. Otherwise an accident could occur.

ECM00120

CAUTION:

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

EMU27110

Fuel

Check to be sure you have plenty of fuel

●

for your trip. Make sure there are no fuel leaks or gaso-

●

line fumes.

●

Check fuel line connections to be sure they are tight (if equipped Yamaha fuel tank or boat tank).

●

Be sure the fuel tank is positioned on a secure, flat surface, and that the fuel line is not twisted or flattened, or likely to contact sharp objects (if equipped Yamaha fuel tank or boat tank).

EMU27120

Oil

●

Check to be sure you have plenty of oil for your trip.

Operation

EMU27130

Controls

●

Check throttle, shift, and steering for proper operation before starting the engine.

●

The controls should work smoothly, without binding or unusual free play. Look for loose or damaged connections.

●

Check operation of the starter and stop switches when the outboard motor is in the water.

EMU27150

Engine

●

Check the engine and engine mounting. Look for loose or damaged fasteners.

●

Check the propeller for damage.

●

Check that the battery is in good condition and the battery connections are secure.

EMU27221

Operation after a long period of storage

When operating the engine after a long period (12 months) of storage, proceed as follows:

1. Start the engine. Leave it idling.

EWM00090

WARNING

●

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

●

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

of storage. Otherwise engine seizure could occur. Use straight gasoline only. If premix

●

fuel is used, the fuel injector could be damaged.

ZMU01875

2. Watch for oil flowing through the oil feed pipes. After any air in the oil lines has been expelled, the oil injection system should supply oil normally. If no oil is flowing after 10 minutes of idling, consult your Yamaha dealer.

ECM00560

CAUTION:

●

Be sure to take the above steps when operating the engine after a long period

ZMU01876

EMU27231

Filling fuel and engine oil

EMU27270

Ring Free Fuel Additive

Gasoline is a precise blend of many different substances, each chosen to give certain characteristics. Gasoline blends have been changing in recent years in response to concerns about pollution and resulting emissions regulations. One of the most obvious changes has been the elimination of lead from most fuels. As gasoline has changed, the amount of additives such as aromatics and oxygenates has increased. These additives are important for the engines in passenger cars, but they can have detrimental effects in marine engines, because of increased deposits in the combustion chamber. When enough deposits collect, piston rings begin sticking. Performance drops and engine wear increases dramatically.

Operation

While many additives available may reduce deposits, Yamaha recommends the use of

Ring Free Fuel Additive

your Yamaha dealer.

tive

has repeatedly proven its ability to clean combustion deposits from inside the engine, notably the critical piston-ring-land area, and fuel system components. Follow product labeling for use instructions.

EMU27290

Filling oil for oil injection models

EWM00530

WARNING

Do not add gasoline into the oil tank. Fire or explosion could result.

This engine uses the Yamaha oil injection system, which provides superior lubrication by ensuring the proper oil ratio for all operating conditions. No fuel premixing is needed. Simply pour gasoline into the fuel tank and oil into the oil tank. Convenient indicators show the status of the oil supply. For details on how to read the indicators, see page 34. To fill the engine oil tank, proceed as follows:

1. Pour engine oil into the remote oil tank.

Engine oil tank capacity:

1.2 L (1.27 US qt) (1.06 Imp.qt)

2. Turn on the main switch. The Yamaha

oil injection system will automatically

, available from

Ring Free Fuel Addi-

ZMU01877

Operation

feed oil from the remote oil tank to the engine oil tank.

3. Operate the engine normally.

ECM00570

CAUTION:

When the engine is operated for the first time or stored for a period of time, a minimum of 5 liters (5.3 US qt, 4.4 Imp qt) of oil should be kept in the remote oil tank. Otherwise the oil-feed pump chamber will not be filled with oil, and no oil will be supplied.

EMU27321

Oil level indicator operation

The various functions of the oil level system are as follows:

EMU27381

Oil level indicator

Electric start models

Oil level warning

indicator

(digital

tachometer)

Oil level warning indicator (analog

tachometer)

Green

Engine oil

tank

more than 300

cm3 (0.32 US

qt, 0.26 Imp

qt)

Remote oil

tank

more than

1500 cm3 (1.6

US qt, 1.31

Imp qt)

Operation

Remarks

●

No reﬁlling necessary.

Yellow

Red–Yellow–

Green

Red

more than 300

cm3 (0.32 US

qt, 0.26 Imp

qt)

300 cm3 (0.32

US qt, 0.26

Imp qt) or less

300 cm3 (0.32

US qt, 0.26

Imp qt) or less

1500 cm3 (1.6 US qt, 1.31 Imp qt) or less

more than

1500 cm3 (1.6 US qt, 1.31 Imp qt)

1500 cm3 (1.6 US qt, 1.31 Imp qt) or less

●

Add oil; see page 32.

Check oil ﬁlter for clog-

●

ging. Check battery cable

●

connection. Buzzer will sound. Engine speed is auto-

●

matically reduced to about 2000 r/min.

●

Oil has not been added.

●

Buzzer will sound. Engine speed is auto-

●

matically reduced to about 2000 r/min. Buzzer sounds in

●

remote control box and engine speed is limited to about 2000 r/min to help conserve oil.

Operation

EMU27450

Operating engine

EMU27480

Feeding fuel

EWM00420

WARNING

●

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

●

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

EMU27490

Starting engine

EMU27623

Electric start and remote control models

1. Place the remote control lever in “”

(neutral).

NOTE:

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

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

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

3. Squeeze the primer pump with the outlet end up until you feel it become firm.

2. Attach the engine stop switch lanyard to

Operation

a secure place on your clothing, or your arm or leg. Then install the lock plate on the other end of the lanyard into the engine stop switch.

EWM00120

WARNING

Attach the engine stop switch lanyard

●

to a secure place on your clothing, or your arm or leg while operating. Do not attach the lanyard to clothing

●

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

●

Avoid accidentally pulling the lanyard during normal operation. Loss of engine power means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward.

3. Turn the main switch to “” (on).

NOTE:

Dual engine users: When the main switch is turned on, the buzzer operates for a few seconds then stops automatically. The buzzer also operates if one of the engines stalls.

OFF

ZMU01880

ON STARTOFF

ZMU01953

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

5. Immediately after the engine starts, release the main switch to return it to “” (on).

ECM00191

CAUTION:

●

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 im-

Operation

possible 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.

OFF

START

ZMU01881

EMU27670

Warming up engine

EMU27701

Electric start and prime start models

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

2. Check for a steady flow of water from the cooling water pilot hole.

ECM00510

CAUTION:

A flow of water from the hole on the exhaust cover shows that the water pump is pumping water through the cooling passages. If water is not flowing out of the

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

ZMU01882

EMU27740

Shifting

EWM00180

WARNING

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

ECM00220

CAUTION:

To change the boat direction or shifting position from forward to reverse or viceversa, first close the throttle so that the engine idles (or runs at low speeds).

EMU27760

Forward (tiller handle and remote control models)

If equipped tiller control:

1. Place the throttle grip in the fully closed position.

2. Move the gear shift lever quickly and firmly from neutral to forward.

If equipped Remote control:

Pull up the neutral interlock trigger (if equipped) and move the remote control lever quickly and firmly from neutral to forward.

EMU27781

Reverse

EWM00190

WARNING

When operating in reverse, go slowly. Do not open the throttle more than half. Otherwise the boat could become unstable, which could result in loss of control and an accident.

Operation

EMU27820

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.

EMU27851

Procedure

1. Turn the main switch to “” (off).

If equipped tiller control:

1. Place the throttle grip in the fully closed position.

2. Move the gear shift lever quickly and firmly from neutral to reverse.

If equipped remote control: Pull up the neutral interlock trigger (if equipped) and move the remote control lever quickly and firmly from neutral to reverse.

Operation

2. After stopping the engine, disconnect the fuel line or close the fuel cock if there is a fuel joint or a fuel cock on the boat.

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

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

NOTE:

The engine can also be stopped by pulling the lanyard and removing the clip from the engine stop switch, then turning the main switch to “” (off).

EMU27861

Trimming outboard motor

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.

EWM00740

WARNING

Excessive trim for the operating conditions (either trim up or trim down) can cause boat instability and can make steering the boat more difficult. This increases the possibility of an accident. If

the boat begins to feel unstable or is hard to steer, slow down and/or readjust the trim angle.

ZMU01883

1. Trim operating angle

EMU27880

Adjusting trim angle

Power trim and tilt model

EWM00750

WARNING

●

Be sure all people are clear of the outboard motor when adjusting the tilt angle, also be careful not to pinch any body parts between the drive unit and clamp bracket.

●

Use caution when trying a trim position for the first time. Increase speed gradually and watch for any signs of instability or control problems. Improper trim angle can cause loss of control.

●

Use the power tilt switch located on the

Operation

bottom engine cowling (if equipped) only when the boat is at a complete stop with the engine off.

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

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.

NOTE:

To adjust the trim angle while the boat is moving, use the power trim and tilt switch located on the remote control device or tiller handle, if equipped.

EMU27910

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. The trim tab can also be adjusted to help offset this effect. When the bow of the boat is down, it is easier to accelerate from a standing start onto plane.

1. Power trim and tilt switch

1. Optimum angle (level keel line)

ZMU01944

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

Operation

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 “por- poise” (hop in the water), which could throw the operator and passengers overboard.

1. Bow up

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.

1. Bow down

NOTE:

Depending on the type of boat, the outboard

motor trim angle may have little effect on the trim of the boat when operating.

EMU27931

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

EWM00220

WARNING

Be sure all people are clear of the outboard motor when tilting up and down, also be careful not to pinch any body parts between the drive unit and engine bracket.

EWM00250

WARNING

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

ECM00241

CAUTION:

●

Before tilting the outboard motor, stop the engine by following the procedure on page 38. Never tilt the outboard motor while the engine is running. Severe damage from overheating can result.

●

Do not tilt up the engine by pushing the tiller handle (if equipped) because this could break the handle.

EMU28000

Procedure for tilting up

Power trim and tilt model / power tilt model

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

2. Disconnect the fuel line from the out-

board motor or close the fuel cock.

3. Press the power trim and tilt switch/ power tilt switch “” (up) until the out- board motor has tilted up completely.

Operation

ZMU01886

EWM00260

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 loses pressure.

5. If the trim rods equipped: once the outboard motor is supported with the tilt support lever, press the power trim and tilt switch “” (down) to retract the trim rods.

ECM00250

CAUTION:

Be sure to retract the trim rods completely during mooring. This protects the rods from marine growth and corrosion which could damage the power trim and tilt mechanism.

ZMU01954

4. Push the tilt support knob into the clamp bracket or pull the tilt support lever toward you to support the engine.

ZMU01884

Operation

EMU28051

Procedure for tilting down (power trim and tilt/power tilt models)

Power trim and tilt model / power tilt model

1. Push the power tilt / power trim and tilt switch “” (up) until the outboard motor is supported by the tilt rod and the tilt support lever / tilt support knob becomes free.

2. Release the tilt support lever or pull out the tilt support knob.

ZMU01885

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

ZMU01936

ZMU01980

ZMU01979

EMU28060

Cruising in shallow water

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

EMU28090

Power trim and tilt models / power tilt models

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

EWM00660

WARNING

●

Place the gear shift in neutral before setting up for shallow water cruising. Return the outboard motor to its normal

●

position as soon as the boat is back in deeper water.

ECM00260

CAUTION:

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 set-

ting up for and cruising in shallow water. Otherwise severe damage from overheating can result.

EMU28182

Procedure for power trim and tilt/power tilt models

1. Place the gear shift lever in neutral.

2. Slightly tilt the outboard motor up to the desired position using the power trim / tilt switch.

Operation

ZMU01888

ZMU01954

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

EMU28190

Cruising in other conditions

Cruising in salt water

After operating in salt water, wash out the cooling water passages with fresh water to prevent them from becoming clogged with salt deposits.

NOTE:

For cooling system flushing instructions, see page 46.

ZMU01935

Cruising in turbid water

Yamaha strongly recommends that you use the optional chromium-plated water pump kit if you use the outboard motor in turbid (muddy) water conditions.

Maintenance

EMU28211

Specifications

Dimension:

Overall length:

868 mm (34.2 in)

Overall width:

568 mm (22.4 in)

Overall height X:

1830 mm (72.0 in)

Overall height U:

1957 mm (77.0 in)

Transom height X:

641 mm (25.2 in)

Transom height U:

768 mm (30.2 in)

Weight (without propeller) X:

247.0 kg (545 lb)

Weight (without propeller) U:

252.0 kg (556 lb)

Performance:

Full throttle operating range:

4500–5500 r/min

Maximum output:

220.7 kW@5000 r/min (300 HP@5000 r/min)

Idling speed (in neutral):

730 ±30 r/min

Engine:

Type:

2-stroke V6

Displacement:

3342.0 cm

Bore × stroke:

93.0 × 82.0 mm (3.66 × 3.23 in)

Ignition system:

TCI

Spark plug (NGK):

BKR6EKU

Spark plug gap:

1.5–1.6 mm (0.059–0.063 in)

Control system:

(203.93 cu.in)

Remote control

Starting system:

Electric

Battery:

Min. cold cranking amps (CCA/SAE):

512.0 A

Min. marine cranking amps (MCA/ABYC):

675.0 A

Min. reserve capacity (RC/SAE):

182 minutes

Alternator output for battery DC:

50.0 A

Starting carburetion system:

Electronic fuel injection

Drive unit:

Gear positions:

Forward-neutral-reverse

Gear ratio:

1.75 (28/16)

Trim and tilt system:

Power trim and tilt

Propeller mark:

LZ300TR TL / ML Z300TR T / M

Fuel and oil:

Recommended fuel:

Unleaded regular gasoline

Min. pump octane:

Recommended engine oil:

2-stroke outboard motor oil

Lubrication:

Oil injection

Engine oil tank capacity:

1.2 L (1.27 US qt) (1.06 Imp.qt)

Remote oil tank capacity:

10.5 L (11.10 US qt) (9.24 Imp.qt)

Recommended gear oil:

Hypoid gear oil SAE#90

Gear oil quantity:

LZ300TR 1000.0 cm

(33.81 US oz)

Maintenance

(35.27 Imp.oz) Z300TR 1150.0 cm3 (38.88 US oz) (40.56 Imp.oz)

Tightening torque for engine:

Spark plug:

25.0 Nm (18.4 ft-lb) (2.55 kgf-m)

Propeller nut:

54.0 Nm (39.8 ft-lb) (5.51 kgf-m)

EMU28220

Transporting and storing

outboard motor

EWM00690

WARNING

●

Leaking fuel is a fire hazard. When transporting and storing the outboard motor, close the air vent screw and fuel cock to prevent fuel from leaking.

●

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.

EWM00700

WARNING

Never get under the lower unit while it is tilted, even if a motor support bar is used. Severe injury could occur if the outboard motor accidentally falls.

ECM00660

CAUTION:

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

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

EMU28250

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. This is especially important for your oil injection equipped outboard motor due to the lean oil ratios used at idle prior to shutting the engine off for the season. 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.

ECM01070

CAUTION:

Do not use any chemical goods containing Silicon, Phosphorus, or Lead. Otherwise the oxygen sensor for the Electronic Fuel Injection system could be damaged. Consult your Yamaha dealer for details on the use of chemical goods for storage.

EMU28301

Procedure

EMU30000

Flushing with the flushing attachment

1. Wash the outboard motor body using fresh water. For further information, see page 49.

2. Fill the fuel tank with fresh fuel and add one ounce of “Yamaha Fuel Conditioner and Stabilizer” (Part No. LUB-FUELC12-00) to each gallon of fuel.

NOTE:

The use of “Yamaha Fuel Conditioner and

Maintenance

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

3. Remove the top cowling and propeller.

4. Install the flushing attachment over the cooling water inlet.

ECM00300

CAUTION:

Do not run the engine without supplying it with cooling water. Either the engine water pump will be damaged or the engine will be damaged from overheating. Before starting the engine, be sure to supply water to the cooling water passages.

ECM00310

CAUTION:

Avoid running the outboard motor at high speed while on the flushing attachment, otherwise overheating could occur.

1. Flushing attachment

5. Cooling system flushing is essential to prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fogging/lubricating of the engine is mandatory to prevent excessive engine damage due to rust. Perform the flush-

ing and fogging at the same time.

EWM00090

WARNING

Do not touch or remove electrical parts

●

when starting or during operation.

●

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

NOTE:

●

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

●

If the overheat warning device is activated, turn the engine off, and consult your Yamaha dealer.

6. Run the engine at a fast idle for 10–15 minutes in neutral position while supplying fresh water.

7. Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine Fogging Oil” (Part No. LUB-STRRT-12-00) alternately into the intake silencer or the fogging hole of the silencer cover, if equipped. When properly done, the engine will smoke excessively and almost stall.

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

9. Install the top cowling and propeller.

NOTE:

A flushing attachment is available from your Yamaha dealer.

EMU28410

Lubrication (oil injection models)

1. Grease the spark plug threads and install the spark plug(s) and torque to proper specification. For information on spark plug installation, see page 53.

2. Fill the oil tanks. This prevents the formation of condensation. For models with

Maintenance

a remote oil tank, it may be necessary to manually override the control unit to completely fill the engine oil tank.

3. Change the gear oil. For instructions, see page 60. Inspect the oil for the presence of water which indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use.

4. Grease all grease fittings. For further details, see page 53.

EMU28420

Cleaning and anticorrosion measures

1. Wash down the exterior of the outboard motor with fresh water and dry off completely.

2. Spray the outboard motor exterior with “Yamaha Silicone Protectant” (Part No. LUB-SILCNE-13-00).

ECM01330

CAUTION:

If equipped Electronic Fuel Injection: Do not spray when the engine is running. Also, do not spray near the silencer and oxygen sensor cover or into the engine. Otherwise the oxygen sensor for Electronic Fuel Injection system could be damaged.

3. Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax” (Part No. ACC-11000-15-02).

EMU28430

Battery care

EWM00330

WARNING

Battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poisonous and highly caustic. Always follow these preventive mea-

sures:

●

Avoid bodily contact with electrolytic fluid as it can cause severe burns or permanent eye injury.

●

Wear protective eye gear when handling or working near batteries.

Antidote (EXTERNAL):

●

SKIN - Flush with water. EYES - Flush with water for 15 minutes

●

and get immediate medical attention.

Antidote (INTERNAL):

Drink large quantities of water or milk

●

followed by milk of magnesia, beaten egg, or vegetable oil. Get immediate

medical attention. Batteries also generate explosive hydrogen gas; therefore, you should always follow these preventive measures:

●

Charge batteries in a well-ventilated ar-

ea.

Keep batteries away from fire, sparks,

●

or open flames (for example: welding

equipment, lighted cigarettes, and so

on.)

●

DO NOT SMOKE when charging or han-

dling batteries. KEEP BATTERIES AND ELECTROLYTIC FLUID OUT OF REACH OF CHILDREN.

Batteries vary among manufacturers. Therefore the following procedures may not always apply. Consult your battery manufacturer’s instructions. Procedure

1. Disconnect and remove the battery from

the boat. Always disconnect the black negative cable first to prevent the risk of shorting.

2. Clean the battery casing and terminals.

Fill each cell to the upper level with distilled water.

3. Store the battery on a level surface in a

Maintenance

cool, dry, well-ventilated place out of direct sunlight.

4. Once a month, check the specific gravity of the electrolyte and recharge as required to prolong battery life.

EMU28440

Flushing power unit

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

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

off the water and disconnect the garden hose.

4. When flushing is complete, reinstall the garden hose connector on the fitting on the bottom cowling. Tighten the connector securely.

ECM00540

CAUTION:

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.

NOTE:

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 46.

EMU28450

Cleaning the outboard motor

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

ZMU01889

1. Fitting

2. Garden hose connector

3. Garden hose

2. Screw the garden hose connector onto a garden hose which is connected to a fresh water supply.

3. With the engine off, turn on the water tap and let the water flush through the cooling passages for about 15 minutes. Turn

ZMU01890

NOTE:

For cooling system flushing instructions, see

page 46.

EMU28460

Checking painted surface of motor

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

EMU28480

Periodic maintenance

EWM01070

WARNING

Be sure to turn off the engine when you perform maintenance unless otherwise specified. If you or the owner is not familiar with machine servicing, this work should be done by your Yamaha dealer or other qualified mechanic.

Maintenance, replacement, or repair of the emission control devices and systems may be performed by any marine engine repair establishment or individual. All warranty repairs, however, including those to the emission control system, must be performed by an authorized Yamaha marine dealership.

A service manual is available for purchase through your Yamaha dealer for owners who have the mechanical skills, tools, and other equipment necessary to perform maintenance not covered by this owner’s manual.

EMU28510

Replacement parts

If replacement parts are necessary, use only genuine Yamaha parts or parts of the same type and of equivalent strength and materials. 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.

Maintenance

EMU28521

Maintenance chart

Frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelines. Refer to the sections in this chapter for explanations of each owner-specific action. 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

Anode(s) (external)

Anode(s) (internal)

Battery Inspection / charging

Cooling water passages

Cowling clamp Inspection

Fuel ﬁlter (can be disassembled)

Fuel system Inspection

Gear oil Change

Greasing points Greasing

Idling speed (EFI models)

PCV (Pressure Control Valve)

Power trim and tilt unit Inspection

Propeller and cotter pin

Shift link / shift cable Inspection / adjustment

Thermostat Inspection

Throttle link / throttle cable / throttle pick-up timing

Throttle position sensor

Water pump Inspection

High pressure fuel pump drive belt

Inspection / replacement

Cleaning

Inspection / replacement

Inspection / adjustment

Inspection

Inspection / replacement

Inspection / adjustment

Inspection / replacement

10 hours

(1 month)

50 hours

months)

100 hours (6 months)

200

hours (1

year)

Maintenance

Initial Every

Item Actions

High pressure fuel pump oil level

Oil pump Inspection / adjustment

Oil tank water drain Inspection / cleaning

Spark plug(s)

Inspection / ﬁlling

Cleaning / adjustment / replacement

10 hours

(1 month)

50 hours

months)

NOTE:

When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.

EMU28871

Maintenance chart (additional)

Item Actions

High pressure fuel pump drive belt

Replacement

500 hours (2.5 years) 1000 hours (5 years)

Every

100 hours (6 months)

200

hours (1

year)

Maintenance

EMU28931

Greasing

Yamaha marine grease (Water resistant grease)

Z300C, LZ300C

EMU28950

Cleaning and adjusting spark plug

EWM00560

WARNING

When removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external

ZMU01939

sparks, which could lead to explosion or fire.

The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine. For exam-

Maintenance

ple, if the center electrode porcelain is very white, this could indicate an intake air leak or carburetion problem in that cylinder. Do not attempt to diagnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. If electrode erosion becomes excessive, or if carbon and other deposits are excessive, you should replace the spark plug with another of the correct type.

Standard spark plug:

BKR6EKU

Before fitting the spark plug, measure the electrode gap with a wire thickness gauge; adjust the gap to specification if necessary.

1. Spark plug gap

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

Spark plug gap:

1.5–1.6 mm (0.059–0.063 in)

ZMU01892

spark plug to the correct torque.

Spark plug torque:

25.0 Nm (18.4 ft-lb) (2.55 kgf-m)

NOTE:

If a torque-wrench is not available when you are fitting a spark plug, a good estimate of the correct torque is 1/4 to 1/2 a turn past finger-tight. Have the spark plug adjusted to the correct torque as soon as possible with a torque-wrench.

EMU28961

Checking fuel system

EWM00900

WARNING

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

EWM00910

WARNING

Leaking fuel can result in fire or explosion.

●

Check for fuel leakage regularly.

●

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

Check the fuel lines for leaks, crack, or malfunction. If a problem is found, your Yamaha dealer or other qualified mechanic should repair it immediately.

When fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the

Maintenance

ZMU01853

●

Fuel line joint leakage

●

Fuel line cracks or other damage Fuel connector leakage

●

EMU28980

Inspecting fuel filter

EWM00310

WARNING

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

●

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

●

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

●

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

●

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

●

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

EMU30070

Cleaning fuel filter

1. Loosen the filter cup ring nut.

Checkpoints

Fuel system parts leakage

●

ZMU01955

1. Locking tab

ZMU01893

Maintenance

2. Filter cup ring nut

2. Remove the filter cup, catching any spilled fuel in a rag.

3. Remove the filter element, and inspect it and the O-ring to make sure they are in good condition. Replace them if necessary. If any water is found in the fuel, the Yamaha portable fuel tank or other fuel tanks should be checked and cleaned.

1. Filter cup

2. Filter cup ring nut

3. Filter element

4. Filter housing

5. Float

6. O-ring

4. Install the filter element and filter cup into the filter housing.

5. Tighten the ring nut so that one of the larger ring nut tabs is aligned with the lock tab.

6. Run the engine and check the filter and lines for leaks.

NOTE:

If any water can be seen in the filter cup, remove the cup and drain the water.

ZMU01894

EMU29040

Inspecting idling speed

EWM00450

WARNING

Do not touch or remove electrical parts

●

when starting or during operation.

●

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

●

2-hp models: The propeller rotates whenever the engine is running. Do not move the throttle control lever from the start position during warm-up. The boat could unexpectedly start to move, which could result in an accident.

ECM00490

CAUTION:

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

A diagnostic tachometer should be used for this procedure. Results may vary depending on whether testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water.

1. Start the engine and allow it to warm up fully in neutral until it is running smoothly. 2-hp model: Warm the engine with the throttle in the start position or less. If the outboard is mounted on a boat, be sure the boat is tightly moored.

NOTE:

Correct idling speed inspection is only possible if the engine is fully warmed up. If not warmed up fully, the idle speed will measure higher than normal. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer

Maintenance

or other qualified mechanic.

2. Verify whether the idle speed is set to specification. For idle speed specifications, see page 45.

EMU29050

Checking water in engine oil tank

Oil injection models

There is a water trap at the bottom of the engine oil tank. If water or foreign matter is visible in this trap, consult your Yamaha dealer.

ZMU01895

1. Water trap

2. Engine oil tank

EMU29110

Checking wiring and connectors

●

Check that each grounding wire is properly secured.

●

Check that each connector is engaged securely.

EMU29120

Exhaust leakage

Start the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head, and body cylinder.

EMU29130

Water leakage

Start the engine and check that no water leaks from the joints between the exhaust cover, cylinder head, and body cylinder.

EMU29150

Checking power trim and tilt system

EWM00430

WARNING

Never get under the lower unit while it

●

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

●

Make sure no one is under the outboard motor before performing this test.

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

2. Operate each of the power trim and tilt switches on the remote control and engine bottom cowling (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 rod

2. Tilt support lever

3. 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.

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

ZMU01940

Maintenance

cylinders.

ZMU01941

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.

NOTE:

Consult your Yamaha dealer if any operation is abnormal.

EMU29171

Checking propeller

EWM00321

WARNING

You could be seriously injured if the engine accidentally starts when you are near the propeller.

●

Before inspecting, removing, or installing the propeller, remove the spark plug caps from the spark plugs. Also, place the shift control in neutral, turn the main switch to “” (off) and re- move the key, and remove the lanyard from the engine stop switch. Turn off the battery cut-off switch if your boat has one.

●

Do not use your hand to hold the propeller when loosening or tightening the propeller nut. Put a wood block between the anti-cavitation plate and the propeller to prevent the propeller from

turning.

ZMU01896

ZMU01897

Checkpoints

●

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

●

Check the propeller shaft for damage. Check the splines / shear pin for wear or

●

damage.

●

Check for fish line tangled around the propeller shaft.

Maintenance

●

Check the propeller shaft oil seal for damage.

NOTE:

If the shear pin equipped: it is designed to break if the propeller hits a hard underwater obstacle to help protect the propeller and drive mechanism. The propeller will then spin freely on the shaft. If this happens, the shear pin must be replaced.

EMU29190

Removing the propeller

1. Straighten the cotter pin and pull it out using a pair of pliers.

2. Remove the propeller nut, washer, and spacer (if equipped).

ZMU01898

identified with the letter “L” after the size indication on the propeller. Otherwise the boat could move in the opposite direction from that expected.

ECM00340

CAUTION:

●

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

●

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

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

2. Install the thrust washer and propeller on the propeller shaft.

3. Install the spacer and washer. Tighten the propeller nut to the specified torque.

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

1. Cotter pin

2. Propeller nut

3. Washer

4. Spacer

5. Propeller

6. Thrust washer

3. Remove the propeller and thrust washer.

EMU29240

Installing the propeller

EWM00770

WARNING

On counter rotation models, be sure to use a propeller intended for counterclockwise rotation. These propellers are

NOTE:

If the propeller nut does not align with the propeller shaft hole after tightening to the specified torque, tighten the nut further to align it with the hole.

Maintenance

EMU29280

Changing gear oil

EWM00800

WARNING

Be sure the outboard motor is securely

●

fastened to the transom or a stable stand. You could be severely injured if the outboard motor falls on you.

●

Never get under the lower unit while it is tilted, even when the tilt support lever or knob is locked. Severe injury could occur if the outboard motor accidentally falls.

1. Tilt the outboard motor so that the gear oil drain screw is at the lowest point possible.

2. Place a suitable container under the gear case.

3. Remove the gear oil drain screw.

to drain completely.

ECM00710

CAUTION:

Inspect the used oil after it has been drained. If the oil is milky, water is getting into the gear case which can cause gear damage. Consult a Yamaha dealer for repair of the lower unit seals.

NOTE:

For disposal of used oil consult your Yamaha dealer.

5. With the outboard motor in a vertical position, and using a flexible or pressurized filling device, inject the gear oil into the gear oil drain screw hole.

Recommended gear oil:

Hypoid gear oil SAE#90

Gear oil quantity:

LZ300TR 1000.0 cm (35.27 Imp.oz) Z300TR 1150.0 cm3 (38.88 US oz) (40.56 Imp.oz)

(33.81 US oz)

ZMU01899

1. Gear oil drain screw

2. Oil level plug

NOTE:

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

4. Remove the oil level plug to allow the oil

ZMU01900

6. When the oil begins to flow out of the oil level plug hole, insert and tighten the oil level plug.

7. Insert and tighten the gear oil drain screw.

Maintenance

EMU29310

Inspecting and replacing anode(s)

Yamaha outboard motors are protected from corrosion by sacrificial anodes. Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a Yamaha dealer for replacement of external anodes.

ECM00720

CAUTION:

Do not paint anodes, as this would render them ineffective.

NOTE:

Inspect ground leads attached to external anodes on equipped models. Consult a Yamaha dealer for inspection and replacement of internal anodes attached to the power unit.

ZMU01901

ZMU01902

EMU29320

Checking battery (for electric start models)

EWM00330

WARNING

Battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poisonous and highly caustic. Always follow these preventive measures:

Avoid bodily contact with electrolytic

●

fluid as it can cause severe burns or permanent eye injury. Wear protective eye gear when han-

●

dling or working near batteries.

Antidote (EXTERNAL):

SKIN - Flush with water.

●

EYES - Flush with water for 15 minutes and get immediate medical attention.

Antidote (INTERNAL):

●

Drink large quantities of water or milk followed by milk of magnesia, beaten egg, or vegetable oil. Get immediate

medical attention. Batteries also generate explosive hydrogen gas; therefore, you should always follow these preventive measures:

Charge batteries in a well-ventilated ar-

●

ea.

●

Keep batteries away from fire, sparks,

or open flames (for example: welding

equipment, lighted cigarettes, and so

on.)

DO NOT SMOKE when charging or han-

●

dling batteries. KEEP BATTERIES AND ELECTROLYTIC FLUID OUT OF REACH OF CHILDREN.

ECM00360

CAUTION:

●

A poorly maintained battery will quickly

Maintenance

deteriorate.

●

Ordinary tap water contains minerals harmful to a battery, and should not be used for topping up.

1. Check the electrolyte level at least once a month. Fill to the manufacturer’s recommended level when necessary. Top up only with distilled water (or pure deionized water suitable to use in batteries).

2. Always keep the battery in a good state of charge. Installing a voltmeter will help you monitor your battery. If you will not use the boat for a month or more, remove the battery from the boat and store it in a cool, dark place. Completely recharge the battery before using it.

3. If the battery will be stored for longer than a month, check the specific gravity of the fluid at least once a month and recharge the battery when it is low.

NOTE:

Consult a Yamaha dealer when charging or re-charging batteries.

EMU29361

Connecting the Battery

EWM00570

WARNING

Mount the battery holder securely in a dry, well-ventilated, vibration-free loca-

tion in the boat. Install a fully charged battery in the holder.

ECM01121

CAUTION:

●

Make sure the main switch (on applicable models) is “” (off) before work- ing on the battery.

●

Reversal of the battery cables will damage the electrical parts.

●

Connect the red battery cable first when installing the battery and disconnect the black battery cable first when removing it. Otherwise, the electrical parts can be damaged.

●

The electrical contacts of the battery and cables must be clean and properly connected, or the battery will not start the engine.

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

1. Red cable

2. Black cable

3. Battery

Connecting an accessory battery (option)

1. Remove the accessory battery coupler cover from the outboard motor.

2. Connect the accessory battery coupler to the coupler of the accessory battery

Maintenance

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

EWM00600

WARNING

Use of smaller wire could lead to a fire.

ZMU01942

1. Battery for accessories

2. Battery for starting

3. Large black lead

4. Large red lead for starting battery

5. Negative connecting cable

6. Power for accessories

7. Small red lead for accessory battery charging (optional part)

NOTE:

If a battery selector switch is desired, consult your Yamaha dealer about correct wiring.

EMU29370

Disconnecting the battery

Disconnect the BLACK cable from the NEGATIVE (-) terminal first. Then disconnect the RED cable from the POSITIVE (+) terminal.

EMU29390

Checking top cowling

Check the fitting of the top cowling by pushing it with both hands. If it is loose have it repaired by your Yamaha dealer.

EMU29400

Coating the boat bottom

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.

ZMU01943

Trouble Recovery

EMU29421

Troubleshooting

A problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. This section describes basic checks and possible remedies, and covers all Yamaha outboard motors. Therefore some items may not apply to your model. If your outboard motor requires repair, bring it to your Yamaha dealer. If the engine trouble warning indicator is flashing, consult your Yamaha dealer.

Starter will not operate.

Q. Is battery capacity weak or low? A. Check battery condition. Use battery of recommended capacity.

Q. Are battery connections loose or corroded? A. Tighten battery cables and clean battery terminals.

Q. Is fuse for electric start relay or electric circuit blown? A. Check for cause of electric overload and repair. Replace fuse with one of correct amperage.

Q. Are starter components faulty? A. Have serviced by a Yamaha dealer.

Q. Is shift lever in gear? A. Shift to neutral.

Engine will not start (starter operates).

Q. Is fuel tank empty? A. Fill tank with clean, fresh fuel.

Q. Is fuel contaminated or stale?

A. Fill tank with clean, fresh fuel.

Q. Is fuel filter clogged? A. Clean or replace filter.

Q. Is starting procedure incorrect? A. See page 35.

Q. Has fuel pump malfunctioned? A. Have serviced by a Yamaha dealer.

Q. Are spark plug(s) fouled or of incorrect type? A. Inspect spark plug(s). Clean or replace with recommended type.

Q. Are spark plug cap(s) fitted incorrectly? A. Check and re-fit cap(s).

Q. Is ignition wiring damaged or poorly connected? A. Check wires for wear or breaks. Tighten all loose connections. Replace worn or broken wires.

Q. Are ignition parts faulty? A. Have serviced by a Yamaha dealer.

Q. Is engine stop switch lanyard not attached? A. Attach lanyard.

Q. Are engine inner parts damaged? A. Have serviced by a Yamaha dealer.

Engine idles irregularly or stalls.

Q. A spark plug(s) fouled or of incorrect type? A. Inspect spark plug(s). Clean or replace with recommended type.

Trouble Recovery

Q. Is fuel system obstructed? A. Check for pinched or kinked fuel line or other obstructions in fuel system.

Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel.

Q. Is fuel filter clogged? A. Clean or replace filter.

Q. Have ignition parts failed? A. Have serviced by a Yamaha dealer.

Q. Has warning system activated? A. Find and correct cause of warning.

Q. Is spark plug gap incorrect? A. Inspect and adjust as specified.

Q. Is ignition wiring damaged or poorly connected? A. Check wires for wear or breaks. Tighten all loose connections. Replace worn or broken wires.

A. Return to home position.

Q. Is motor angle too high? A. Return to normal operating position.

Q. Is carburetor clogged? A. Have serviced by a Yamaha dealer.

Q. Is fuel joint connection incorrect? A. Connect correctly.

Q. Is throttle valve adjustment incorrect? A. Have serviced by a Yamaha dealer.

Q. Is battery cable disconnected? A. Connect securely.

Warning buzzer sounds or indicator lights.

Q. Is cooling system clogged? A. Check water intake for restriction.

Q. Is engine oil level low? A. Fill oil tank with specified engine oil.

Q. Is specified engine oil not being used? A. Check and replace oil as specified.

Q. Is thermostat faulty or clogged? A. Have serviced by a Yamaha dealer.

Q. Are carburetor adjustments incorrect? A. Have serviced by a Yamaha dealer.

Q. Is fuel pump damaged? A. Have serviced by a Yamaha dealer.

Q. Is air vent screw on fuel tank closed? A. Open air vent screw.

Q. Is choke knob pulled out?

Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with recommended type.

Q. Is specified engine oil not being used? A. Check and replace oil with specified type.

Q. Is engine oil contaminated or deteriorated? A. Replace oil with fresh, specified type.

Q. Is oil filter clogged? A. Have serviced by a Yamaha dealer.

Q. Has oil feed/injection pump malfunctioned?

Trouble Recovery

A. Have serviced by a Yamaha dealer.

Q. Is load on boat improperly distributed? A. Distribute load to place boat on an even plane.

Q. Is water pump or thermostat faulty? A. Have serviced by a Yamaha dealer.

Q. Is there excess water in fuel filter cup? A. Drain filter cup.

Engine power loss.

Q. Is propeller damaged? A. Have propeller repaired or replaced.

Q. Is propeller pitch or diameter incorrect? A. Install correct propeller to operate outboard at its recommended speed (r/min) range.

Q. Is trim angle incorrect? A. Adjust trim angle to achieve most efficient operation.

Q. Is motor mounted at incorrect height on transom? A. Have motor adjusted to proper transom height.

Q. Are weeds or other foreign matter tangled on gear housing? A. Remove foreign matter and clean lower unit.

Q. Is fuel system obstructed? A. Check for pinched or kinked fuel line or other obstructions in fuel system.

Q. Is fuel filter clogged? A. Clean or replace filter.

Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel.

Q. Is spark plug gap incorrect? A. Inspect and adjust as specified.

Q. Is ignition wiring damaged or poorly connected? A. Check wires for wear or breaks. Tighten all loose connections. Replace worn or broken wires.

Q. Have ignition parts failed? A. Have serviced by a Yamaha dealer.

Q. Is specified engine oil not being used? A. Check and replace oil with specified type.

Q. Has warning system activated? A. Find and correct cause of warning.

Q. Is boat bottom fouled with marine growth? A. Clean boat bottom.

Q. Are spark plug(s) fouled or of incorrect type? A. Inspect spark plug(s). Clean or replace with recommended type.

Q. Is thermostat faulty or clogged? A. Have serviced by a Yamaha dealer.

Q. Is air vent screw closed? A. Open the air vent screw.

Q. Is fuel pump damaged? A. Have serviced by a Yamaha dealer.

Q. Is fuel joint connection incorrect? A. Connect correctly.

Trouble Recovery

Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with recommended type.

Q. Is high pressure fuel pump drive belt broken? A. Have serviced by a Yamaha dealer.

Q. Is engine not responding properly to shift lever position? A. Have serviced by a Yamaha dealer.

board motor unsafe to operate.

If the outboard motor hits an object in the water, follow the procedure below.

Engine vibrates excessively.

Q. Is propeller damaged? A. Have propeller repaired or replaced.

Q. Is propeller shaft damaged? A. Have serviced by a Yamaha dealer.

Q. Are weeds or other foreign matter tangled on propeller? A. Remove and clean propeller.

Q. Is motor mounting bolt loose? A. Tighten bolt.

Q. Is steering pivot loose or damaged? A. Tighten or have serviced by a Yamaha dealer.

EMU29430

Temporary action in

emergency

EMU29440

Impact damage

EWM00870

WARNING

The outboard motor can be seriously damaged by a collision while operating or trailering. Damage could make the out-

1. Stop the engine immediately.

2. Inspect the control system and all components for damage. Also inspect the boat for damage.

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

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

EMU29450

Running single engine

When using only engine in an emergency, be sure to keep the unused one tilted up and operate the other engine at low speed.

ECM00370

CAUTION:

If the boat is operated with one engine in the water but not running, water may run into the exhaust pipe due to wave action, causing engine trouble.

NOTE:

When you are maneuvering at low speed, such as near a dock, it is recommended that both engines be running with one in neutral gear if possible.

EMU29471

Replacing fuse

If a fuse has blown, remove the electrical cover, open the fuse holder and remove the fuse with a fuse puller (if equipped). Replace it with a spare one of the proper amperage.

EWM00630

WARNING

Be sure to use the specified fuse. An incorrect fuse or a piece of wire could allow excessive current flow. This could cause electric system damage and a fire hazard.

Trouble Recovery

ZMU01904

1. Fuse (20A, 30A, 100A)

2. Fuse puller

EMU29520

Power trim and tilt will not operate

If the engine cannot be tilted up or down with the power trim and tilt/ the power tilt because of a discharged battery or a failure with the power trim and tilt unit/the power tilt, the engine can be tilted manually.

1. Loosen the manual valve screw by turning it counterclockwise until it stops.

NOTE:

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

1. Electrical cover

2. Fuse holder

3. Fuse (20A, 30A, 100A)

4. Spare fuse (20A, 30A, 100A)

5. Fuse puller

ZMU01903

ZMU01905

1. Manual valve screw

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

Trouble Recovery

EMU29670

Engine fails to operate

EMU29740

Low oil level warning activates

If the oil level is allowed to drop too low, the red segment will appear on the oil level indicator, the buzzer will sound, and engine speed will be limited to about 2000 r/min. If this happens, a reserve amount of oil can be pumped from the remote oil tank to the engine oil tank using the emergency switch.

EWM01050

WARNING

Be sure to stop the engine before performing this procedure.

ECM00900

CAUTION:

If the emergency switch is held up too

●

long, too much oil will be pumped into the engine oil tank, overflowing it. Release the switch when oil reaches the upper level line on the engine oil tank. Do not use this emergency procedure

●

unless the oil level warning indicators are working.

1. Remove the top cowling.

2. Turn on the main switch.

ON STARTOFF

ZMU01906

3. Lift the emergency switch to pump reserve oil into the engine oil tank from the remote oil tank.

ZMU01907

1. Emergency switch

1. Engine oil tank

2. Remote oil tank

4. After using the emergency switch, turn off the main switch, then turn it back on. This resets the warning system to normal operation. The yellow segment will continue to be displayed on the oil level indicator.

5. Start the engine and return to the nearest port for more oil.

NOTE:

The maximum reserve oil capacity is 1500

●

cm3 (1.6 US qt, 1.31 Imp qt).

●

The oil-feed pump will not operate if the engine is tilted up more than 35°. Put the engine in the upright position (not tilted) before using the emergency switch.

ZMU01908

Trouble Recovery

EMU29760

Treatment of submerged motor

If the outboard motor is submerged, immediately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immediately. If you cannot immediately take the outboard motor to a Yamaha dealer, follow the procedure below in order to minimize engine damage.

EMU29970

Procedure

1. Thoroughly wash away mud, salt, seaweed, and so on, with fresh water.

ZMU01909

2. Remove the spark plugs and face the spark plug holes downward to allow any water, mud, or contaminants to drain.

plug holes while rotating the flywheel manually.

ZMU01911

5. Take the outboard motor to a Yamaha dealer as soon as possible.

ECM00400

CAUTION:

Do not attempt to run the outboard motor until it has been completely inspected.

ZMU01910

3. Drain the fuel from the vapor separator, fuel filter, and fuel line.

4. Spray “Fogging Oil” or supply engine oil through the intake manifold and spark

Consumer information

EMU29811

Important warranty information for U.S.A. and Canada

Consumer information

EMU29820

YAMAHA MOTOR CORPORATION, U.S.A.

OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY

Consumer information

EMU29840

IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR

YAMAHA OUTSIDE U.S.A. OR CANADA

Printed in Japan August 2003 - 1.4 × 1 !

Printed on recycled paper

YAMAHA MOTOR CO., LTD. MADE IN JAPAN PAYS D'ORIGINE JAPON

OUTBOARD MOTOR WARRANTY REGISTRATION

ENREGISTREMENT DE LA GARANTIE DU MOTEUR HORS-BORD

Please complete and mail this card. This information is necessary to accurately register your unit for warranty.

Veuillez signer ci-dessous pour attester que le montage et l’inspection ont été faits dans le respect des directives d’inspection et

OUTBOARD MOTOR MODEL AND SERIAL NUMBER (From I.D. label on clamp bracket)

MODÉLE ET NO. DE SÉRIE DU MOTEUR HORS-BORD (sur l’étiquette d’identification de la presse de fixation)

DATE SOLD

DATE DE LIVRAISON

OWNER’S NAME

NOM DU PROPRIÉTAIRE

ADDRESS

ADRESSE

PHONE NUMBER ( )

NUMÉRO DE TÉLÉPHONE

que la marche à suivre pour la garantie et l’entretien a été expliquée à l’acheteur au détail.

(For Dealer Use Only)

(A l’usage du concessionnaire)

YAMAHA DEALER NUMBER

NO. DU CONCESSIONNAIRE YAMAHA

DEALER NAME

NOM DU CONCESSIONNAIRE

USAGE (Check One)

UTILISATION

MONTH DAY YEAR

MOIS JOUR ANNÉE

FIRST LAST

PRÉNOM NOM DE FAMILLE

STREET

RUE

CITY STATE/PROVINCE ZIP

VILLE PROVINCE CODE POSTAL

(En cocher un.)

PLEASURE

LOISIR

COMMERCIAL

ATTN: WARRANTY DEPARTMENT

PLACE POSTAGE HERE

Yamaha Z300C, LZ300C User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important manual information

Table of contents

General information

Safety information

Important labels

Fueling instructions

Propeller selection

Basic components

Main components

Warning system

Operation

Installation

Breaking in engine

Filling fuel and engine oil

Operating engine

Warming up engine

Stopping engine

Trimming outboard motor

Tilting up and down

Maintenance

Specifications

Periodic maintenance

Trouble Recovery

Troubleshooting

Consumer information