Yamaha 30D Manual

30D

OWNER’S MANUAL

q Read this manual carefully before operating this

outboard motor.

6J8-28199-74-E0

EMU25052

Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating. This manual should stay with the outboard motor if it is sold.

Important manual information

EMU25105

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.

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

EWM00781

WARNING

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

ECM00701

NOTICE

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

TIP:

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

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.

To ensure long product life, Yamaha recommends that you use the product and perform the specified periodic inspections and maintenance by correctly following the instructions in the owner’s manual. Any damage resulting from neglect of these instructions is not covered by warranty.

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

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

TIP:

The 30DEO, 30DETO, 30DMHO 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.

EMU25121

30D OWNER’S MANUAL

©2008 by Yamaha Motor Co., Ltd. 1st Edition, April 2008

All rights reserved.

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

is expressly prohibited. Printed in Japan

Table of contents

Safety information.............................	1
Outboard motor safety ....................	1
Propeller............................................	1
Rotating parts....................................	1
Hot parts ...........................................	1
Electric shock ....................................	1
Power trim and tilt .............................	1
Engine shut-off cord (lanyard)...........	1
Gasoline ............................................	1
Gasoline exposure and spills ............	2
Carbon monoxide..............................	2
Modifications .....................................	2
Boating safety .................................	2
Alcohol and drugs .............................	2
Personal flotation devices .................	2
People in the water ...........................	2
Passengers .......................................	2
Overloading.......................................	2
Avoid collisions .................................	3
Weather ............................................	3
Passenger training ............................	3
Boating safety publications ...............	3
Laws and regulations ........................	3
General information ..........................	4
Identification numbers record..........	4
Outboard motor serial number ..........	4
Key number.......................................	4
EC Declaration of Conformity
(DoC) .............................................	4
CE Marking .....................................	4
Read manuals and labels................	6
Warning labels ..................................	6
Specifications and requirements...	10
Specifications ................................	10
Installation requirements ...............	11
Boat horsepower rating ...................	11
Mounting motor ...............................	11
Remote control requirements........	11
Battery requirements.....................	12
Battery specifications ......................	12
Mounting battery .............................	12
Multiple batteries .............................	12
Without a rectifier or Rectifier
Regulator ......................................	12
Propeller selection.........................	12

Start-in-gear protection .................	13
Engine oil requirements ................	13
Fuel requirements .........................	13
Gasoline ..........................................	13
Muddy or acidic water ...................	13
Anti-fouling paint ...........................	14
Motor disposal requirements.........	14
Emergency equipment ..................	14
Components ....................................	15
Components diagram....................	15
Fuel tank .........................................	15
Fuel joint..........................................	16
Fuel gauge ......................................	16
Fuel tank cap...................................	16
Air vent screw..................................	16
Remote control box .........................	16
Remote control lever .......................	16
Neutral interlock trigger ...................	17
Neutral throttle lever........................	17
Choke switch...................................	17
Tiller handle.....................................	17
Gear shift lever................................	18
Throttle grip .....................................	18
Throttle indicator .............................	18
Throttle friction adjuster...................	18
Engine shut-off cord (lanyard) and
clip.................................................	19
Engine stop button ..........................	19
Choke knob for pull type .................	20
Manual starter handle .....................	20
Main switch .....................................	20
Steering friction adjuster .................	20
Power trim and tilt switch on remote
control ...........................................	21
Trim tab with anode.........................	21
Trim rod (tilt pin) ..............................	22
Shallow water lever .........................	22
Tilt lock mechanism.........................	22
Tilt support knob..............................	22
Tilt support lever for manual tilt
model ............................................	23
Top cowling lock lever(s)
(turn type)......................................	23
2-pin connector ...............................	23
Battery charging information ...........	24

Table of contents

Alert indicator ..................................	24
Engine control system....................	25
Alert system ..................................	25
Overheat alert .................................	25
Oil level alert and oil filter clogging
alert...............................................	25
Installation .......................................	27
Installation .....................................	27
Mounting the outboard motor..........	27
Clamping the outboard motor .........	28
Operation .........................................	30
First-time operation .......................	30
Breaking in engine ..........................	30
Getting to know your boat ...............	30
Checks before starting engine ......	30
Fuel level.........................................	31
Remove cowling..............................	31
Fuel system.....................................	31
Controls...........................................	31
Engine shut-off cord (lanyard).........	32
Oil....................................................	32
Engine.............................................	32
Operation after long period of
storage..........................................	32
Install cowling..................................	33
Power trim and tilt system ...............	33
Battery.............................................	34
Filling fuel and engine oil...............	34
Filling fuel for portable tank .............	34
Filling oil for manual starter
model ............................................	35
Filling oil for electric start models ....	35
Oil level indicator operation.............	37
Operating engine...........................	37
Feeding fuel (portable tank) ............	37
Starting engine................................	38
Checks after starting engine .........	42
Cooling water ..................................	42
Warming up engine .......................	42
Choke start models .........................	42
Checks after engine warm-up .......	42
Shifting ............................................	42
Stop switches ..................................	42
Shifting ..........................................	42

Stopping boat................................	44
Stopping engine............................	44
Procedure........................................	44
Trimming outboard motor..............	45
Adjusting trim angle for manual tilt
models ..........................................	46
Adjusting trim angle (power tilt
models) .........................................	46
Adjusting boat trim ..........................	47
Tilting up and down.......................	48
Procedure for tilting up (manual tilt
models) .........................................	48
Procedure for tilting up (power trim
and tilt models)..............................	49
Procedure for tilting down (manual
tilt models).....................................	50
Procedure for tilting down (power
trim and tilt models).......................	50
Shallow water................................	51
Cruising in shallow water (manual
tilt models).....................................	51
Power trim and tilt models...............	52
Cruising in other conditions...........	53
Maintenance ....................................	54
Transporting and storing outboard
motor ...........................................	54
Clamp screw mounting models .......	54
Storing outboard motor ...................	54
Procedure........................................	55
Lubrication (oil injection models).....	57
Cleaning the outboard motor...........	57
Checking painted surface of
motor.............................................	57
Periodic maintenance ...................	57
Replacement parts ..........................	58
Severe operating conditions............	58
Maintenance chart 1........................	59
Maintenance chart 2........................	61
Greasing..........................................	62
Cleaning and adjusting spark
plug ...............................................	63
Checking fuel filter...........................	64
Inspecting idling speed....................	64
Checking water in engine oil tank ...	65
Checking wiring and connectors .....	65

Table of contents
Checking propeller ..........................	65
Removing propeller .........................	66
Installing propeller ...........................	66
Changing gear oil ............................	67
Cleaning fuel tank ...........................	68
Inspecting and replacing
anode(s)........................................	69
Checking battery (for electric start
models) .........................................	69
Connecting the battery....................	70
Disconnecting the battery ...............	70
Trouble Recovery............................	72
Troubleshooting ............................	72
Temporary action in emergency....	75
Impact damage ...............................	75
Replacing fuse ................................	75
Power trim and tilt will not
operate..........................................	76
Starter will not operate ....................	76
Emergency starting engine .............	77
Treatment of submerged motor.....	78

Safety information

EMU33622

Outboard motor safety

Observe these precautions at all times.

EMU36500

Propeller

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

●Shut off the engine when a person is in the water near you.

●Keep people out of reach of the propeller,

even when the engine is off.

EMU33630

Rotating parts

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

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

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

EMU33640

Hot parts

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

EMU33650

Electric shock

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

EMU33660

Power trim and tilt

Body parts can be crushed between the mo-

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

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

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

EMU33671

Engine shut-off cord (lanyard)

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

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

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

EMU33810

Gasoline

Gasoline and its vapors are highly flammable and explosive. Always, refuel according to the procedure on page 37 to reduce the risk of fire and explosion.

1

Safety information

EMU33820

Gasoline exposure and spills

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

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

If you swallow gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical attention. Never siphon fuel by mouth.

EMU33900

Carbon monoxide

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

EMU33780

Modifications

Do not attempt to modify this outboard motor. Modifications to your outboard motor may reduce safety and reliability, and render the outboard unsafe or illegal to use.

EMU33740

Boating safety

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

EMU33710

Alcohol and drugs

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

EMU33720

Personal flotation devices

Have an approved personal flotation device (PFD) on board for every occupant. Yamaha

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

EMU33730

People in the water

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

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

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

EMU33750

Passengers

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

EMU33760

Overloading

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

2

Safety information

dling and lead to an accident, capsizing or swamping.

EMU33771

Avoid collisions

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

ZMU06025

Operate defensively at safe speeds and keep a safe distance away from people, objects, and other boats.

●Do not follow directly behind other boats or waterskiers.

●Avoid sharp turns or other maneuvers that make it hard for others to avoid you or understand where you are going.

●Avoid areas with submerged objects or shallow water.

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

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

in another direction.

EMU33790

Weather

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

boating in hazardous weather.

EMU33880

Passenger training

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

EMU33890

Boating safety publications

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

EMU33600

Laws and regulations

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

3

General information

EMU25171

Identification numbers record

EMU25183

Outboard motor serial number

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

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

1. Outboard motor serial number location

EMU25190

Key number

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

1. Key number

EMU37290

EC Declaration of Conformity

(DoC)

This outboard motor conforms to certain portions of the European Parliament directive relating to machinery.

Each conformed outboard motor accompanied with EC DoC.EC DoC contains the following information;

●Name of Engine Manufacture

●Model name

●Product code of model (Approved model code)

●Code of conformed directives

EMU25203

CE Marking

Outboard motors affixed with this “CE”marking conform with the directives of; 98/37/EC, 94/25/EC - 2003/44/EC and 2004/108/EC.

4

General information

1

ZMU06200

1. CE marking location

ZMU06040

5

General information

EMU33520

Read manuals and labels

Before operating or working on this motor:

●Read this manual.

●Read any manuals supplied with the boat.

●Read all labels on the outboard motor and the boat.

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

EMU33831

Warning labels

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

30DMHO

1

2

3

ZMU06197

6

General information

30DEO, 30DETO
	1
3	2
	ZMU06202

7

General information

1

2

3

EMU33912

Contents of labels

The above warning labels mean as follows.

1

EWM01691

WARNING

Emergency starting does not have start- in-gear protection. Ensure shift control is in neutral before starting engine.

2

EWM01681

WARNING

●Keep hands, hair, and clothing away from rotating parts while the engine is running.

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

ZMU05706

3

EWM01671

WARNING

●Read Owner’s Manuals and labels.

●Wear an approved personal flotation device (PFD).

●Attach engine shut-off cord (lanyard) to your PFD, arm, or leg so the engine stops if you accidentally leave the helm, which could prevent a runaway boat.

8

General information

EMU33843

Symbols

The following symbols mean as follows.

Notice/Warning

ZMU05696

Read Owner’s Manual

ZMU05664

Hazard caused by continuous rotation

ZMU05665

Electrical hazard

ZMU05666

Remote control lever/gear shift lever operating direction, dual direction

ZMU05667

Engine start/ Engine cranking

ZMU05668

9

Specifications and requirements

EMU31480

Specifications

TIP:

“(AL)” stated in the specification data below represents the numerical value for the aluminum propeller installed.

Likewise, “(SUS)” represents the value for stainless steel propeller installed and “(PL)” for plastic propeller installed.

EMU2821C

Dimension:

Overall length:

30DEO 662 mm (26.1 in) 30DETO 662 mm (26.1 in) 30DMHO 993 mm (39.1 in)

Overall width:

30DEO 307 mm (12.1 in) 30DETO 307 mm (12.1 in) 30DMHO 360 mm (14.2 in)

Overall height S:

30DEO 1140 mm (44.9 in) 30DMHO 1158 mm (45.6 in)

Overall height L:

30DEO 1261 mm (49.6 in) 30DETO 1261 mm (49.6 in) 30DMHO 1279 mm (50.4 in)

Transom height S:

30DEO 424 mm (16.7 in) 30DMHO 424 mm (16.7 in)

Transom height L: 545 mm (21.5 in)

Weight (AL) S:

30DEO 60.0 kg (132 lb) 30DMHO 60.0 kg (132 lb)

Weight (AL) L:

30DEO 62.0 kg (137 lb) 30DETO 66.0 kg (146 lb) 30DMHO 62.0 kg (137 lb)

Performance:

Full throttle operating range:

4500–5500 r/min Maximum output:

22.1 kW@5000 r/min

(30 HP@5000 r/min) Idling speed (in neutral):

30DEO 750 ±50 r/min 30DETO 1050 ±50 r/min 30DMHO 750 ±50 r/min

Engine:

Type: 2-stroke L

Displacement: 496.0 cm3 Bore × stroke:

59.5 × 59.5 mm (2.34 × 2.34 in) Ignition system:

CDI

Spark plug with resistor (NGK): BR7HS-10

Spark plug gap:

0.9–1.0 mm (0.035–0.039 in) Control system:

30DEO Remote control 30DETO Remote control 30DMHO Tiller

Starting system: 30DEO Electric 30DETO Electric 30DMHO Manual

Starting carburetion system: Choke valve

Min. cold cranking amps (CCA/EN): 30DEO 347.0 A

30DETO 347.0 A

Min. rated capacity (20HR/IEC): 30DEO 40.0 Ah

30DETO 40.0 Ah Alternator output:

30DMHO 80 W Maximum generator output:

30DEO 6.0 A

10

Specifications and requirements

30DETO 6.0 A

Drive unit:

Gear positions: Forward-neutral-reverse

Gear ratio:

1.85 (24/13) Trim and tilt system:

30DEO Manual tilt 30DETO Power trim and tilt 30DMHO Manual tilt

Propeller mark: F

Fuel and oil:

Recommended fuel:

Regular unleaded gasoline Min. research octane:

90

Fuel tank capacity:

25 L (6.60 US gal, 5.50 Imp.gal) Recommended engine oil:

YAMALUBE 2-stroke outboard motor oil

Lubrication:

Oil injection

Engine oil tank capacity:

0.9 L (0.95 US qt, 0.79 Imp.qt) Recommended gear oil:

Hypoid gear oil SAE#90 Gear oil quantity:

0.200 L (0.211 US qt, 0.176 Imp.qt)

Tightening torque for engine:

Spark plug:

25.0 Nm (2.55 kgf-m, 18.4 ft-lb) Propeller nut:

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

Noise and vibration level:

Operator sound pressure level (ICOMIA 39/94 and 40/94):

91.7 dB(A)

Sound power level (ICOMIA 39/94 and 40/94):

98.7 dB(A)

Vibration on tiller handle (ICOMIA 38/94): Vibration on tiller handle is under 2.5 m/s2

EMU33553

Installation requirements

EMU33563

Boat horsepower rating

EWM01560

WARNING

Overpowering a boat can cause severe instability.

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

EMU33571

Mounting motor

EWM01570

WARNING

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

●Because the motor is very heavy, special equipment and training is required to mount it safely.

Your dealer or other person experienced in proper rigging should mount the motor using correct equipment and complete rigging instructions. For further information, see page 27.

EMU33581

Remote control requirements

EWM01580

WARNING

●If the engine starts in gear, the boat can move suddenly and unexpectedly, possibly causing a collision or throwing

11

Specifications and requirements

passengers overboard.

●If the engine ever starts in gear, the start-in-gear protection device is not working correctly and you should discontinue using the outboard. Contact your Yamaha dealer.

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

EMU25694

Battery requirements

EMU25721

Battery specifications

Minimum cold cranking amps (CCA/EN): 30DEO 347.0 A

30DETO 347.0 A

Minimum rated capacity (20HR/IEC): 30DEO 40.0 Ah

30DETO 40.0 Ah

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

EMU36290

Mounting battery

Mount the battery holder securely in a dry, well-ventilated, vibration-free location in the boat. WARNING! Do not put flammable items, or loose heavy or metal objects in the same compartment as the battery. Fire, explosion or sparks could result.

[EWM01820]

EMU36300

Multiple batteries

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

EMU25730

Without a rectifier or Rectifier Regulator

ECM01090

NOTICE

A battery cannot be connected to models that do not have a rectifier or Rectifier Regulator.

If you wish to use a battery with the models without a rectifier or Rectifier Regulator, install an optional Rectifier Regulator.

Using a maintenance-free battery with the above models can shorten the life of the battery significantly.

Install an optional Rectifier Regulator or use accessories rated to withstand 18 volts or higher with the above models. Consult your Yamaha dealer for details on installing an optional Rectifier Regulator.

EMU34191

Propeller selection

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

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

Your Yamaha dealer can help you select the right propeller for your boating needs. Select a propeller that will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boatload. Generally, chose a larger pitch propel-

12

Specifications and requirements

ler for a smaller operating load and a smaller pitch propeller for a heavier load. If you carry loads that vary widely, chose the propeller that lets the engine run in the proper range for your maximum load but remember that you may need to reduce your throttle setting to stay within the recommended engine speed range when carrying lighter loads.

For instructions on propeller removal and installation, see page 65.

x- 1 2 3

ZMU04605

1.Propeller diameter in inches

2.Propeller pitch in inches

3.Type of propeller (propeller mark)

x- 1 2 3

ZMU04606

1.Propeller diameter in inches

2.Propeller pitch in inches

3.Type of propeller (propeller mark)

EMU25770

Start-in-gear protection

proved 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.

EMU25651

Engine oil requirements

Recommended engine oil: YAMALUBE 2-stroke outboard motor oil

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

EMU36360

Fuel requirements

EMU36801

Gasoline

Use a good quality gasoline that meets the minimum octane rating. If knocking or pinging occurs, use a different brand of gasoline or premium unleaded fuel.

Recommended gasoline:

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

ECM01980

NOTICE

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

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

EMU36880

Muddy or acidic water

Yamaha outboard motors or Yamaha-ap- Yamaha strongly recommends that you have

13

Specifications and requirements

your dealer install the optional chromiumplated water pump kit if you use the outboard motor in muddy or acidic water conditions. However, depending on the model it might not be required.

EMU36330

Anti-fouling paint

A clean hull improves boat performance. The boat bottom should be kept as clean of marine growth as possible. If necessary, the boat bottom can be coated with an anti-foul- ing 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.

EMU36340

Motor disposal requirements

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

EMU36351

Emergency equipment

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

●A tool kit with assorted screwdrivers, pliers, wrenches (including metric sizes), and electrical tape.

●Waterproof flashlight with extra batteries.

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

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

Consult your Yamaha dealer for details.

14

Components

EMU2579H

Components diagram

TIP:

* May not be exactly as shown; also may not be included as standard equipment on all mod-

els.
30DEO, 30DMHO, 30DETO
	1		9
			10
		22	11
	2		12
		18
			14	13
		17	15
	3		16
8
	19
	20		21
7	4
	5
6
				ZMU03758

1.Oil tank filler cap

2.Top cowling

3.Top cowling lock lever(s)

4.Anti-cavitation plate

5.Trim tab (anode)

6.Propeller

7.Cooling water inlet

8.Tilt rod*

9.Manual starter handle*

10.Engine stop button/Engine shut-off switch*

11.Alert indicator*

12.Gear shift lever*

13.Throttle grip*

14.Tilt lock lever*

15.Transom clamp handle*

16.Shallow water lever*

17.Rope attachment

18.Choke knob

19.Tilt support knob*

20.Remote control box (side mount type)*

21.Fuel tank

22.Clip*

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

15

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.

1	3	4	2
			ZMU03157

1.Fuel joint

2.Fuel gauge

3.Fuel tank cap

4.Air vent screw

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.

EMU26181

Remote control box

The remote control lever actuates both the shifter and the throttle. The electrical switch-

es are mounted on the remote control box.

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 shut-off switch

7.Throttle friction adjuster

EMU26190

Remote control lever

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

16

Components

4.Shift

5.Fully closed

6.Throttle

7.Fully open

EMU26201

Neutral interlock trigger

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

1. Neutral interlock trigger

EMU26211

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.

TIP:

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

1.Fully open

2.Fully closed

EMU26221

Choke switch

To activate the choke system, press in the main switch while the key is turned to the “” (on) or “ ” (start) position. The choke system will then supply the rich fuel mixture required to start the engine. When the key is released, the choke will switch off automatically.

EMU25911

Tiller handle

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

17

Components

ZMU02846

ZMU02848

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.

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.

R	N
3	2

1

F 1

ZMU03687	ZMU02849

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.

1. Throttle indicator

EMU25973

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. WARNING! Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to move the remote control lever or throttle grip, which could result in an accident. [EWM00032]

18

Components

To decrease resistance, turn the adjuster counterclockwise.

tangled, preventing it from functioning. Avoid accidentally pulling the cord during normal operation. Loss of engine power means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward. [EWM00122]

ZMU03688

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

EMU25993

Engine shut-off cord (lanyard) and clip

The clip must be attached to the engine shutoff switch for the engine to run. The cord should be attached to a secure place on the operator’s clothing, or arm or leg. Should the operator fall overboard or leave the helm, the cord will pull out the clip, stopping ignition to the engine. This will prevent the boat from running away under power. WARNING! Attach the engine shut-off cord to a secure place on your clothing, or your arm or leg while operating. Do not attach the cord to clothing that could tear loose. Do not route the cord where it could become en-

1.Cord

2.Clip

3.Engine shut-off switch

2
1	3
ZMU03759

1.Clip

2.Cord

3.Engine shut-off switch

EMU26001

Engine stop button

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

19

Components

ZMU03760

EMU26011

Choke knob for pull type

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

ZMU03761

EMU26070

Manual starter handle

EMU26090

Main switch

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

● “ ” (off)

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

● “ ” (on)

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

● “	” (start)
With the main switch in the “		” (start) po-

sition, the starter motor turns to start the engine. When the key is released, it returns automatically to the “ ” (on) position.

To start the engine, first gently pull the han-

	dle out until resistance is felt. From that posi-	EMU26122
		Steering friction adjuster
	tion, then pull the handle straight out quickly
		A friction device provides adjustable resis-
	to crank the engine.
		tance to the steering mechanism, and can be
		set according to operator preference. An ad-
		justing screw or bolt is located on the swivel
		bracket.

20