Yamaha F4A User Manual

F4A

OWNER’S MANUAL

68D-F8199-76-E0

EMU25050

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

Important manual information

EMU25101

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 to 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.

To ensure long product life, Yamaha recommends that you use the product and perform the specified periodic inspections and maintenance by correctly following the instructions in the owner’s manual. Note that if you do not follow these instructions, not only may the product break down, but the warranty will also be voided.

Some countries have laws or regulations restricting users from taking the product out of the country where it was purchased, and it may be impossible to register the product in the destination country. Additionally, the warranty may not apply in certain regions. When planning to take the product to another country, consult the dealer where the product was purchased for further information.

If the product was purchased used, please consult your closest dealer for customer reregistration, and to be eligible for the specified services.

NOTE:

The F4AMH 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.

EMU25140

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-

F4A

Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd.

is expressly prohibited. Printed in France

Table of contents

General information ..........................	1
Identification numbers record..........	1
Outboard motor serial number ..........	1
EC label...........................................	1
Emission control information ...........	1
SAV models ......................................	1
Safety information ...........................	2
Important labels...............................	3
Warning labels ..................................	3
Caution labels ...................................	4
Fueling instructions .........................	4
Gasoline ............................................	5
Engine oil ..........................................	5
Propeller selection...........................	5
Start-in-gear protection ...................	6
Basic components ............................	7
Main components............................	7
Fuel tank ...........................................	7
Fuel tank ...........................................	8
Fuel joint ...........................................	8
Fuel gauge ........................................	8
Fuel tank cap ....................................	8
Air vent screw ...................................	8
Fuel cock...........................................	8
Open .................................................	9
Tiller handle ......................................	9
Gear shift lever..................................	9
Throttle grip .....................................	10
Throttle indicator .............................	10
Throttle friction adjuster...................	10
Engine stop lanyard switch .............	11
Engine stop button ..........................	11
Choke knob for pull type .................	11
Manual starter handle .....................	12
Steering friction adjuster .................	12
Trim rod (tilt pin) ..............................	12
Tilt lock mechanism.........................	12
Tilt support bar ................................	12
Top cowling lock lever (pull up
type)..............................................	13
Carrying handle...............................	13
Operation .........................................	14
Installation .....................................	14
Mounting the outboard motor..........	14
Clamping the outboard motor .........	15

Breaking in engine ........................	16
Procedure for 4-stroke models........	16
Preoperation checks .....................	16
Fuel .................................................	16
Controls...........................................	17
Engine .............................................	17
Checking the engine oil level ..........	17
Filling fuel......................................	17
Operating engine ..........................	18
Feeding fuel ....................................	18
Starting engine ................................	19
Warming up engine.......................	21
Manual start models........................	21
Shifting ..........................................	21
Forward (tiller handle and remote
control models) .............................	22
Reverse...........................................	22
Stopping engine............................	22
Procedure........................................	22
Trimming outboard motor..............	23
Adjusting trim angle for manual
tilt models......................................	24
Adjusting boat trim ..........................	24
Tilting up and down.......................	25
Procedure for tilting up (manual
tilt models).....................................	26
Procedure for tilting down
(manual tilt models).......................	27
Cruising in shallow water ..............	28
Cruising in shallow water
(manual tilt models).......................	28
Cruising in other conditions...........	29
Maintenance ....................................	30
Specifications................................	30
Transporting and storing
outboard motor ...........................	31
Clamp screw mounting models .......	31
Storing outboard motor ...................	32
Procedure........................................	32
Lubrication (except oil injection
models) .........................................	34
Cleaning the outboard motor...........	34
Checking painted surface of
motor.............................................	34
Periodic maintenance ...................	34

Table of contents

Replacement parts ..........................	34
Maintenance chart ..........................	35
Maintenance chart (additional)........	36
Greasing .........................................	37
Cleaning and adjusting spark
plug ...............................................	37
Checking fuel system ......................	38
Checking fuel filter ..........................	39
Inspecting idling speed ...................	39
Changing engine oil ........................	39
Checking wiring and connectors .....	41
Exhaust leakage .............................	41
Water leakage .................................	41
Engine oil leakage...........................	41
Checking propeller ..........................	41
Removing the propeller ...................	42
Installing the Propeller ....................	42
Changing gear oil ............................	43
Cleaning fuel tank ...........................	44
Inspecting and replacing
anode(s)........................................	44
Checking top cowling ......................	45
Coating the boat bottom..................	45
Trouble Recovery............................	46
Troubleshooting ............................	46
Temporary action in
emergency ..................................	49
Impact damage ...............................	49
Starter will not operate ....................	49
Emergency starting engine .............	50
Treatment of submerged motor.....	51
Procedure .......................................	51

General information

EMU25170

Identification numbers record

EMU25183

Outboard motor serial number

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

Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto-

len.	1. EC label location
len.

ZMU02651

ZMU01696

1. Outboard motor serial number location

EMU25202

EC label

Engines affixed with this label conform to certain portions of the European Parliament directive relating to machinery. Refer to the label and the EC Declaration of Conformity for more details.

EMU25221

Emission control information

EMU25351

SAV models

Engines affixed with the label pictured below conform to SAV (the Swiss exhaust emission regulations for Swiss inshore waters).

General information

Approval label of emission control certificate

ZMU04493

1. Approval label location

YAMAHA MOTOR CO.,LTD.

Motorfamilie

Abgastypenpruf-

Nummer

ZMU04492

Fuel requirement label

ZMU04495

1. Fuel requirement label location

ZMU04494

EMU25371

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 owner’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 outboard 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.

●Incorrect propeller selection and incorrect use may not only cause engine damage, but also adversely affect fuel consumption. Consult your dealer for correct use.

●Never operate after drinking alcohol or taking drugs. About 50% of all boating fatalities involve intoxication.

●Have an approved personal flotation device (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

General information

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 to a secure place on your clothing, or your arm or leg while operating. If you accidentally leave the helm, the lanyard will pull from the switch, stopping the engine.

●Know the marine laws and regulations where you will be boating - and obey them.

●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.

●Do not illegally discard empty containers used to replace or replenish oil. For the correct processing of empty containers, consult the dealer where you purchased the oil.

●When replacing oils used to lubricate the product (engine or gear oil), be sure to wipe away any spilt oil. Never pour oil without using a funnel or similar device. If necessary, verify the necessary replacement procedure with the dealer.

●Never illegally discard (dump) the product. Yamaha recommends consulting the deal-

er on discarding the product.

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Important labels

EMU25395

Warning labels

ZMU04496

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

General information

while engine is running.

EMU25431

Label

EWM01300

WARNING

●This engine is equipped with a neutral starting device.

●The engine will not start unless the shift control is in neutral position.

EMU25441

Label

EWM01311

WARNING

LEAKING FUEL COULD CAUSE A FIRE. Before tilting up the engine or laying it on its side:

●Turn the fuel cock to the “closed” position.

●Tighten the air-vent screw on the fuel tank cap.

EMU25465

Caution labels

ZMU02655

EMU25482

Label

ECM01201

CAUTION:

Store the engine only as shown. Otherwise, engine damage could result from leaking oil.

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.

General information

EMU25580

Gasoline

Recommended gasoline:

Regular unleaded gasoline with a minimum octane rating of 90 (Research Octane Number).

If knocking or pinging occurs, use a different brand of gasoline or premium unleaded fuel.

EMU25683

Engine oil

Recommended engine oil:

4-stroke motor oil with a combination of the following SAE and API oil classifications

Engine oil type SAE: 10W-30 or 10W-40 Engine oil grade API:

SE, SF, SG, SH, SJ, SL

Engine oil quantity (excluding oil filter): 0.5 L (0.53 US qt) (0.44 Imp.qt)

NOTE:

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

ECM01050

CAUTION:

All 4-stroke engines are shipped from the factory without engine oil.

ZMU01710

EMU25742

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 pro-

General information

pellers 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.

pictured label 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.

ZMU01713

x- 1 2 3

1. Start-in-gear protection label

ZMU04604

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

For instructions on propeller removal and installation, see page 41.

EMU25760

Start-in-gear protection

Yamaha outboard motors affixed with the

Basic components

EMU25797

Main components

NOTE:

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

F4A

	1		11
	1		12
	2		12
	2		13
	3		2
10	3
10
9	4	19	14
9	4	18	14
8		18
8		17
		17
		16	15
		20

1.Top cowling

2.Top cowling lock lever

3.Carrying handle

4.Steering friction screw

5.Anti-cavitation plate

6.Propeller

7.Cooling water inlet

8.Trim rod

9.Clamp bracket

10.Tiller handle

11.Air vent screw

12.Fuel tank cap

13.Manual starter handle

14.Engine stop button/Engine stop lanyard switch

ZMU04483

15.Clamp screw

16.Rope attachment

17.Fuel joint

18.Choke knob

19.Gear shift lever

20.Fuel tank*

EMU25802

Fuel tank

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

EWM00020

WARNING

The fuel tank supplied with this engine is

Basic components

its dedicated fuel reservoir and must not be used as a fuel storage container. Commercial users should conform to relevant licensing or approval authority regulations.

ZMU01992

1.Air vent screw

2.Fuel gauge

3.Fuel joint

4.Fuel tank cap

EMU25821

Fuel tank

If your model included a fuel tank, its parts and functions are as follows.

ZMU02658

1.Air vent screw

2.Built-in fuel tank

3.Fuel tank cap

EMU25830

Fuel joint

This joint is used to connect the fuel line.

EMU25841

Fuel gauge

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

EMU25850

Fuel tank cap

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

EMU25860

Air vent screw

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

EMU25872

Fuel cock

The fuel cock turns on and off the supply of fuel from the fuel tank to the engine.

ZMU02659

1. Fuel cock

EMU25881

To stop fuel flow to the engine, turn the lever or knob to close position.

Always turn the lever or knob to close position when the engine is not running.

Basic components

1		1
		1

	ZMU02659		ZMU02652
		1. “OPEN” position for the portable tank
1. Close position		1. “OPEN” position for the portable tank

EMU25901

Open

The fuel cock has two open positions, one for selecting fuel flow from the built-in fuel tank, and one for an external tank.

Fuel flows to the carburetor with the lever or knob in either open position. These are the normal running positions.

EMU25911

Tiller handle

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

ZMU02661

1. “OPEN” position for the built-in tank

ZMU02662

EMU25922

Gear shift lever

Pulling the gear shift lever towards you puts the engine in forward gear so that the boat moves ahead. Pushing the lever away from you puts the engine in reverse gear so that the boat moves astern.

Basic components

R	N	F
3	2	F
		1

ZMU02663

1.Forward “”

2.Neutral “”

3.Reverse “”

EMU25941

Throttle grip

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

ZMU02664

EMU25961

Throttle indicator

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

ZMU02665

1. Throttle indicator

EMU25971

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.

EWM00031

WARNING

Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to move the remote control lever or throttle grip, which could result in an accident.

ZMU02666

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

Basic components

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.

ZMU02667

1.Lanyard

2.Lock plate

EMU26001

Engine stop button

To open the ignition circuit and stop the engine, push this button.

ZMU02668

EMU26011

Choke knob for pull type

To supply the engine with the rich fuel mixture required to start, pull out this knob.

ZMU02669

Basic components

EMU26070

Manual starter handle

To start the engine, first gently pull the handle out until resistance is felt. From that position, then pull the handle straight out quickly to crank the engine.

ZMU02670

EMU26122

Steering friction adjuster

A friction device provides adjustable resistance to the steering mechanism, and can be set according to operator preference. An adjusting screw or bolt is located on the swivel bracket.

ZMU02671

To increase resistance, turn the adjuster clockwise.

To decrease resistance, turn the adjuster counterclockwise.

EWM00040

WARNING

Do not overtighten the friction adjuster. If there is too much resistance, it could be

difficult to steer, which could result in an accident.

EMU26261

Trim rod (tilt pin)

The position of the trim rod determines the minimum trim angle of the outboard motor in relation to the transom.

ZMU02672

EMU26312

Tilt lock mechanism

The tilt lock mechanism is used to prevent the outboard motor from lifting out of the water when in reverse gear.

ZMU04497

1. Tilt lock lever

To lock it, set the tilt lock lever in the “” (lock) position. To release, push the tilt lock lever in the “” (release) position.

EMU26330

Tilt support bar

The tilt support bar keeps the outboard motor in the tilted up position.

Basic components

ZMU02674

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.

ZMU02675

1. Top cowling lock lever(s)

EMU26450

Carrying handle

A carrying handle is provided on the rear of the outboard motor. It enables you to carry the outboard motor easily with one hand.

ZMU02676

1. Carrying handle

ZMU04522

1. Top cowling lock lever(s)

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