Yamaha 5A, 3A, 2A Manual

OWNER’S MANUAL

U.S.A.Edition

LIT-18626-04-51

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 manual, please consult your Yamaha dealer.

NOTE:

The 2MH, 3MH, 5MH and their standard accessories are used as a base for the explanations and illustrations in this manual. Therefore, some items may not apply to every model.

E

EMU01449

TO THE OWNER

Thank you for choosing a Yamaha out- cC

board motor. This Owner’s manual contains information needed for proper oper-

A CAUTION indicates special precautions

ation, maintenance and care. A thorough

that must be taken to avoid damage to

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.

the outboard motor.

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

The Safety Alert Symbol means

QATTENTION! BECOME ALERT!

YOUR SAFETY IS INVOLVED!

w

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.

EMU01446

2A/3A/5A OWNER'S MANUAL

©2001 by Yamaha Motor Corporation, USA 1st Edition, March 2001

All rights reserved.

Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, USA is expressly prohibited.

Printed in Japan

P/N LIT-18626-04-51

EMA20010	CONTENTS	E

1

BASIC COMPONENTS

OPERATION

MAINTENANCE

2

3

4

5

6

READ THIS OWNER’S MANUAL CAREFULLY BEFORE OPERATING YOUR OUTBOARD MOTOR.

E

1

2

IDENTIFICATION NUMBERS

3

4

5

6

		E
		EMB10010
		IDENTIFICATION NUMBERS
		RECORD
		OUTBOARD MOTOR SERIAL NUMBER
	w
	q	YAMAHA MOTOR CO., LTD.
		MADE IN JAPAN
		PAYS D’ORIGINE JAPON
		401011

-

-

1-1

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2

q

w

3

q

w

5

w	q

EMU01385

EMISSION CONTROL

INFORMATION

EMU01386

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.

Approval label of Emission control certificate

This label is attached to the bottom cowling.

1 Emission control information label

EMISSION CONTROL INFORMATION

ENGINE FAMILY :

THIS ENGINE CONFORMS TO 2001 U.S. EPA REGULATIONS FOR MARINE SI ENGINES.

FELs :	g/kw-hr	IDLE SPEED :	rpm IN NEUTRAL
SPARK PLUG :		SPARK PLUG GAP (mm) :

Existing Technology ; N/A

Manufactured date label

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

2 Manufactured date label

Manufactured:

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EMU00917

QINFORMATIONSAFETY

8Before mounting or operating the outboard motor, read this entire manual. Reading it should give you an understanding of the motor and its operation.

8Before 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.

8Do 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.

8Do not modify the outboard. Modifications could make the motor unfit or unsafe to use.

8Never operate after drinking alcohol or taking drugs. About 50% of all boating fatalities involve intoxication.

8Have 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 non-swimmers should always wear PFDs, and everyone should wear PFDs when there are potentially hazardous boating conditions.

8Gasoline 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.

8This 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.

8Check throttle, shift, and steering for proper operation before starting the engine.

8Attach 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.

8Know the marine laws and regulations where you will be boating - and obey them. Refer to “RULES OF THE ROAD” section for basic boating rules.

8Stay informed about the weather. Check weather forecasts before boating. Avoid boating in hazardous weather.

8Tell someone where you are going: leave a Float Plan with a responsible person. Be sure to cancel the Float Plan when you return.

8Use 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.

8Always watch carefully for swimmers during the engine operation.

8Stay away from swimming areas.

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8When a swimmer is in the water near you shift into neutral and shut off the engine.

8Be 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: [phone]

National Marine Manufacturers

Association (NMMA)

401 N. Michigan Ave.

Chicago, Il 60611

Marine Retailers Association of America

155 N. Michigan Ave.

Chicago, Il 60601

1-4

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2			EMB30010
			IMPORTANT LABELS
			WARNING LABELS
			1
			WARNING
			●Be sure shift control is in neutral
q			before starting engine. (except 2HP)
			●Do not touch or remove electrical parts
	w	202055*	when starting or during operation.
			●Keep hands,hair,and clothes away from flywheel
			and other rotating parts while engine is running.
			6A1-83625-41
3	q
			2
			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.
			6A1-2415A-41
	w	202056*
5
			3
q		e	WARNING
			This engine is equipped with a neutral starting device.
			The engine will not start unless the shift control is
			in neutral position.
			6E0-83627-41
	w	202063*

1-5

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EMB40010

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.

STEERING AND SAILING RULES AND SOUND SIGNALS

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

Give-way Vessel

The vessel which does not have the right-of-way 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.

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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

(you are approaching another vessel head-on)

Crossing

(you are travelling across the other vessel’s path)

Overtaking

(you are passing or being passed by another vessel)

In the following illustration, your boat is in the center. You should give the right- of-way to any vessels shown in white area (you are the Give-Way vessel). Any vessels in the shaded area must yield to you (they are the Give-Way vessels). Both you and the meeting vessel must alter course to avoid each other.

102045

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-of-way! 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.

102044

Crossing

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

102046

Overtaking

If you are passing another vessel, you are the “Give-Way” vessel. This means that the other vessel is expected to

1-7

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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.

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 power-driven 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-of-way regardless of position. Fishing vessels cannot, however, impede the passage of other vessels in narrow channels.

Sailing Vessel Right-of-way

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

1-8

1.When the sailing vessel is overtaking the power-driven vessel, the powerdriven 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 state. The Uniform State Waterway Marking System has been devised for these waters. This system uses buoys and signs with distinctive shapes and colors to show regulatory or advisory information. These markers are white with black letters and orange boarders. They signify speed zones, restricted areas, danger areas, and general information.

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Remember, markings may vary by geographic location. Always consult local boating authorities before driving your boat in unfamiliar waters.

		M
		AI
	" 7"	N
		CHANN
		E
		L
		" 5"

" 6"

RB " L" or

RG " L"

											L
										N	E
									AN
		C " 1"					C	H		N " 2"
						Y
					R
				DA
			N
		O
SE	C

	BUOY
" 4"	COLOR CODE
	BLACK
	RED

" 3"

GREEN

" A"

" 2"

" 1"

Proceeding toward head of navigation from seaward

SECONDARY CHANNEL BUOYS

STARTS NEW NUMBERING SYSTEM

C " 1"	CAN BUOY
	Odd number. Leave to port.

1	1
	OR

old	new
N " 2"	NUN BUOY
	Even number. Leave to starboard

2

No change

MAIN CHANNEL BUOYS

" 1" " 3" " 5" " 7"

LIGHTED BUOY (Port Hand)`

Odd number. increasing toward head of navigation.Leave to port (left) proceeding upstream.

White Light	Green Light
1	1
OR
old	new

" 2" " 4" " 6"

LIGHTED BUOY (Starboard Hand)`

Even number,increasing toward head of navigation. Leave to starboard (right) proceeding upstream.

White Light	Red Light
2	2
OR
old	new

" A"

LIGHTED SAFE WATER BUOY

No number. Marks midchannel, pass on either side. Letter has no lateral significance, used for identification and location purposes.

	Top Mark
White Light	White Light
A	A
OR
old	new
RB " L"	RG " L"

LIGHTED PREFERRED CHANNEL TO

PORT BUOY

No number . Topmost band red - preferred channel is to left of buoy. Letter has no lateral significance, used for identification and location purposes.

		Red or	Red Light
		White Light
	L		L
	old		new

102052

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EMU00016

FUELING INSTRUCTIONS

w

GASOLINE AND ITS VAPORS ARE HIGHLY FLAMMABLE AND EXPLOSIVE!

8Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition.

8Stop engine before refueling.

8Refuel in a well-ventilated area. Refuel portable fuel tanks off the boat.

8Take care not to spill gasoline. If gasoline spills, wipe it up immediately with dry rags.

8Do not overfill the fuel tank.

8Tighten the filler cap securely after refueling.

8If you should swallow some gasoline inhale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical attention.

8If any gasoline spills onto your skin, immediately wash with soap and water. Change clothing if gasoline spills on it.

8Touch the fuel nozzle to the filler opening or funnel to help prevent electrostatic sparks.

cC

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

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EMU00018

GASOLINE (PETROL)

Recommended gasoline:

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

If knocking or pinging occurs, use a different brand of gasoline or premium unleaded fuel. If unleaded gasoline is not available, then leaded regular gasoline can be used.

EMU00027

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. Gasohol containing methanol is not recommended by Yamaha because it can cause fuel system damage or engine performance problems.

EMU00858

ENGINE OIL

Recommended engine oil: YAMALUBE 2 STROKE OUTBOARD OIL

If the recommended engine oil is not available, another 2-stroke engine oil with a NMMA-certified TC-W3 rating may be used.

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EMU01395

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.

1-12

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2

7-1/4 x4 -A

1 23

602024

3/5

7-1/4 x7-1/4-BA

1 2 3

602025

NOTE:

At full throttle and under a maximum boat load, the engine’s rpm should be within the upper half of the full throttle operating range, as listed in “SPECIFICATIONS” on page 4-1. Select a propeller which fulfills this requirement.

If operating under conditions which allow the engine’s rpm to rise above the maximum recommended range (such as light boat loads), reduce the throttle setting to maintain the rpm in the proper operating range.

1 Propeller diameter (in inches)

2 Propeller pitch (in inches)

3 Type of propeller (propeller mark)

Refer to the section “CHECKING PROPELLER” for instructions on propeller removal and installation.

EMU01209

START-IN-GEAR PROTECTION

5

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 Neutral. Always select Neutral before starting the engine.

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EMC00010		1
Chapter 2
BASIC COMPONENTS
MAIN COMPONENTS............................	2-1 2
OPERATIONS OF CONTROLS AND
OTHER FUNCTIONS ..............................	2-4
Fuel tank..............................................	2-4
Gear shift lever ...................................	2-5	3
Engine stop button.............................	2-6
Throttle control...................................	2-6
Choke knob .........................................	2-7
Recoil starter handle ..........................	2-7
Tiller handle ........................................	2-8
Fuel cock .............................................	2-8	4
Throttle friction adjustment...............	2-9
Steering friction adjustment............	2-10
Trim angle adjusting rod .................	2-10
Tilt support knob ..............................	2-11
Tilt support bar .................................	2-11
Top cowling lock lever .....................	2-12
		5

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EMU01206

MAIN COMPONENTS

2
	q
	w	!1
!0	e	!2
o	!7	!3
	!6
i	!5
u
		!4
y	r
	t
101221		101222

1 Air-vent screw

2 Fuel tank cap

3 Top cowling

4 Anti-cavitation plate

5 Propeller

6 Cooling water inlet

7 Clamp bracket

8 Transom clamp handle

9 Tiller handle

0 Fuel cock

q Recoil starter handle w Engine stop button e Choke knob

r Trim angle adjusting-rod t Rope attachment

y Tilt support knob

u Throttle control lever

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

2-1

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EMU01206

MAIN COMPONENTS

3

		q
		w
	r	e
		!2
		o
	!0	u
		y
	!1	i
	!3	!4

!6	!5
!7	!8

	!9		@0
	@1
	101122*
1 Air vent screw		w Choke knob
2 Fuel tank cap		e Rope attachment
3 Recoil starter handle		r Carrying-handle
4 Top cowling		t Transom clamp handle
5 Cowling lock lever		y Tilt support bar (lever)
6 Tiller handle		u Clamp bracket
7 Throttle control grip		i Trim angle adjusting-rod
8 Throttle friction knob		o Anti-cavitation plate
9 Engine stop button		p Cooling water inlet
0 Gear shift lever		a Propeller
q Fuel cock		* May not be exactly as shown; also may not
		be included as standard equipment on all
		models.
	2-2

EMU01206

MAIN COMPONENTS

5
	q
	w		!5
!3 !4			!6
	e
		@2
	r @1		!7
!2	t	@0
!1		!9
!0		!8
o
i	y
	u
101213			101212

1 Air vent screw	e Throttle control grip
2 Fuel tank cap	r Throttle friction adjusting knob
3 Top cowling	t Recoil starter handle
4 Cowling lock lever	y Choke knob
5 Steering friction adjusting lever	u Engine stop button
6 Anti cavitation plate	i Rope attachment
7 Propeller	o Tilt support bar (lever)
8 Cooling water inlet	p Fuel hose connector
9 Trim angle adjusting-rod	a Gear shift lever
0 Clamp bracket	s Fuel cock
q Transom clamp handle	* May not be exactly as shown; also may not
w Tiller handle	be included as standard equipment on all
	models.

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q	e	r	w
			902051
q e		r	w

902065

EMC20010

OPERATIONS OF CONTROLS

AND

OTHER FUNCTIONS

EMC21012

FUEL TANK

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

1 Fuel hose joint

2 Fuel meter(If equipped)

3 Fuel tank cap

4 Air vent screw(If equipped)

Fuel hose joint

This connector is provided for connecting or disconnecting fuel hose.

Fuel meter

This meter is on the fuel tank cap. It shows current fuel quantity in the fuel tank approximately.

Fuel tank cap

This cap is for filling fuel. To remove it, turn it counterclockwise.

Air Vent screw

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

2-4

	3	qN
			F w
			310021
	5	q
	e		w

EMC25110

GEAR SHIFT LEVER

(for Tiller control model)

3

Turning the gear-shift lever towards you engages the clutch with the forward gear so that the boat moves ahead.

1 Neutral

2 Forward

EMC25010

GEAR SHIFT LEVER

(for Tiller control model)

5

Turning the gear-shift lever towards you engages the clutch with the forward gear so that the boat moves ahead. Turning the lever away from you engages the reverse gear so that the boat moves astern.

1 Neutral

2 Forward

3 Reverse

2-5

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EMC27011

2

3

ENGINE STOP BUTTON

(for Tiller control model)

Pushing this button opens the ignition

circuit and stops the engine.

5
	308044
	EMC40110
2	THROTTLE CONTROL

(for Tiller control model)

					2
						Pushing the knob upward increases
						speed.
					3/5
		217011				The throttle grip is on the steering han-
						dle. Turn the grip counterclockwise to
						increase speed and clockwise to
	3/5	q				decrease speed.
						Throttle indicator
						The fuel consumption curve on the throt-
						tle indicator shows the relative amount
						of fuel consumed for each throttle posi-
						tion. Choose the setting that offers the
						best performance and fuel economy for
						the desired operation.
						1 Throttle indicator
					2-6

2

EMC42110

CHOKE KNOB

2/5

Turning this knob to right (setting it to ON) supplies a rich mixture required to start the engine.

		305036
	5
		308044*
	3	EMC42210
		CHOKE KNOB

3

Pulling out this knob (setting it to ON) supplies a rich mixture required to start the engine.

305041

EMC44010

RECOIL STARTER HANDLE

Pull the handle gently until resistance is felt. Then vigorously pull the handle straight out to crank the engine to start it.

209012

2-7

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503015

2

q

CLOSE

OPEN

3

q

CLOSE

OPEN

5	w
	q
	e	315021*

EMC60010

TILLER HANDLE

Moving the tiller handle sideways to adjust the steering direction.

EMC22110

FUEL COCK

A fuel cock is provided on top / bottom cowling to open or close the fuel flow from the fuel tank. There are two positions (2-hp/3-hp) or three positions (4- hp/5-hp) on this fuel cock.

1 Fuel cock

CLOSE

With the lever / knob in this position, fuel does not flow. Always turn the knob to this position when the engine is not running.

OPEN 2/3

With the lever / knob in this position, fuel flows to the carburetor. Normal running is done with the lever / knob in this position.

5

There are two “OPEN” positions on the fuel cock for selecting the fuel flow from the built-in tank or the separate tank.

2 “OPEN” position for the built-in tank

3 “OPEN” position for the separate tank

With the knob in both positions, fuel flows to the carburetor. Normal running is done with the knob in these positions.

2-8

2

204033

3

502014

5

502015

EMC64110

THROTTLE FRICTION ADJUSTMENT

(for Tiller control model)

2

A friction device provides resistance to movement of the throttle lever. This is adjustable for operator preference. An adjusting screw is located within the aprons.

3/5

A friction device in the tiller handle provides resistance to movement of the throttle grip. This is adjustable for operator preference. An adjusting screw/knob is located within the steering handle.

To increase the resistance:

Turn the adjusting screw/knob clockwise.

To decrease the resistance:

Turn the adjusting screw/knob counterclockwise.

When constant speed is desired, tighten the adjusting screw/knob to maintain the desired throttle setting.

w

Do not overtighten the friction adjusting screw/knob. If there is too much resistance, it may be difficult to move throttle lever/grip, which could result in an accident.

2-9