Honda Power Equipment BF8A User Manual

Thank you for purchasing a Honda Outboard Motor. This manual covers operation and maintenance of the Honda BF8A Out-

board Motor. All information ,in this publication is based on the latest product information available at the time of approval for printing. Honda Motor Co., Ltd. reserves the right to make changes at any time without notice and without incurring any obligation.

No part‘of this publication may be reproduced without written permission. This manual should be considered a permanent part of the Outboard Motor

and should remain with it if it is resold. Pay special attention to statements preceded by the following words:

A,DANGER: tions are not followed.

instructions are not followed.

CAUTION: Indicates a possibility of personal injury or equipment damage if instructions are not followed.

NOTE: Gives helpful information. If a problem should arise, or if you have any questions about the Outboard

Motor, consult an authorized Honda Outboard Motor dealer.

Indicates severe personal injury or death WIII result if instruc-

Indicates a strong possibility of severe personal injury or death if

SAFETY

COMPONENT IDENTIFICATION INSTALLATION

PRE-OPERATION CHECK STARTING THE ENGINE

6”:

OPERATION ........................................................................

STOPPING THE ENGINE ........................................................

MAINTENANCE

TRANSPORTING/STORAGE

10.

TROUBLESHOOTING

11.

SPECIFICATIONS .................................................................

12.

WIRING DIAGRAM

13.

OPTIONAL PARTS ................................................................

14.

WARRANTY SERVICE

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8 10 13

ii: 26

38 41 42 43 44 45

1. SAFETY

SAFETY LABEL LOCATIONS

Read all safety instructions before using the outboard motor.

I AWARNING

To AVOID PERSONAL INJURY;

f REAO OWNER’S MANUAL

CAREl=“LLY q El=ORE OPERATION.

*PLACE TRANSMlSSlON IN NEUTRAL BEFORE

STRTING.

000 NOT OPERATE WITH ENGINE COVER REMOVED,

1 A

TO AVOID DAMAGE TO THE MOTOR ; *CHECK OIL LEVEL BEFORE STARTING . ANTI

IN WATER BEFORE OPERATION.

I -

*FLUSH THE SYSTEM THOROUGHLY WITH FRESH

WATER AFTER EACH USE IN SALT WATER.

.PULL STARTER LIGHTLY, UNTIL RESISTANCE

IS FELT, THEN PULL BRISKLY. ’

CAUTION

CAVITATION

PLATE MUST SE SUBMERGED

ADD UiL UP TO THE UPPER

TURN HANDLE UP AND PLACE MOTOR

WARNING

FLAMMABLE

GASOLINE

HONDA

USE LOW LEAD OR REGULAR GASOLINE. (86PUMP OCTANE)

CAPACITY : 13 LITERS 2.9 IMP.GALLONS 3.4 U.S.GALLONS

-HARMFUL OR FATAL IF SWALLOWED.

-DO NOT USE OR STORE NEAR HEAT, SPARKS, OR OPEN FLAME.

SAFE FILLING LEVEL : 2Scm/linch BELOW BOTTOM OF NECK.

WARNING

IF SWALLOWED., DO NOT INDUCE VOMITING. CALL PHYSICIAN IMMEDIATELY.

AVOID REPEATED OR PROLONGED’CONTACT WITH SKIN OR BREATHING OF

DO NOT USE FUEL/OIL MIXTURE.

REMOVE FR0.M BOAT FOR *FILLING

HONDA MOTOR CO.. LTD. TOKYO. JAPAN

VAPOR.

able service if operated according to instructions. Read and understand the

Owner’s Manual before operating the Outboard Motor. Failure to do so could result in personal injury or equipment damage.

To avoid severe personal injury or equipment damage, observe the following precautions:

Do not exceed the boat manufacturer’s power recommendation, and be sure the outboard motor is properly mounted. Never permit anyone to operate the outboard motor without proper instruction. Stop the engine immediately if anyone falls overboard. Do not run the motor virhile the boat is near anyone in the water. Exhaust contains poisonous carbon monoxide which can cause unconsciousness and may lead to death. Never run the outboard in a closed garage or confined area. Gasoline is extremely flammable and is explosive under certain conditions. Refuel in a well ventilated area with the engine stopped. Do not smoke or allow flames or sparks where the engine is refueled or where gasoline is stored. Do not overfill the fuel tank. After refueling make sure that the fuel tank cap is closed properly and securely. Be careful not to spill any fuel while refueling. Spilled fuel or fuel vapor may ignite. If any fuel is spilled make sure that the area is dry before starting the engine. Do not remove any guards, labels, shields, covers or safety devices; they are installed for your safety.

Honda Outboard Motors are designed to give safe and denend-

2. COMPONENT IlDENTlFlCATlON

FUEL LINE CONNECTOR (MALE)

STARTER GRI

THROTTLE FR

ENGINE COVER LOCK LEVER

GEAR OIL LEVEL

WATER INTAKE

GEAR OIL DRAIN BOLT

BOLTi+{

PRIMER BULB

FUEL TANK

FUEi LINE CONNECTOR

(FEMALE)

TOOL KIT

SHIFT LEVER

CHOKE KNOB ENGINE STOP BUTTON THROTTLE GRIP

SPARE SHEAR PINS AND COTTER PINS

TILT LEVER ENGINE OIL DRAIN SCREW

CLAMP SCREW

- ADJUSTING ROD

ENGINE SERIAL NUMBER

list the serial number when

ANTI-CAVITATION PLATE

WATER CHECK TUBE

3. lN,STALLATUON

It is your responsibility to choose a boat suitable for the engine (8.0 horsepower BF8A).

manufacturer’s power recommendation. Damage and injury may result.

1. Installation Position

Install at the stern at the center line

of the boat.

2. Installation Height

For proper propeller depth and engine cooling, the boat’s transom height must match the motor’s shaft length. The short shaft motor requires a transom height of about’1 5 in. The long shaft motor requires a transom of about 20 in. Once the boat is in the water and loaded, check proper

motor depth by looking at the anti-

cavitation plate: with the motor not

running, the plate should be about

100 mm (4 in.) below the surface of

the water.

During operation, check to be sure the anti-cavitation plate remains under water at all times and that water flows from the water check hole. Excessive or imbalanced loading will affect the motor’s water depth. Loading too far forward will raise the motor out of the water, reducing engine cooling. Loading too much or too far rearward will push the motor deeper, reducing performance.

Do not exceed the boat

STERN CENTER

ATER SURFACE

(4 in)

ANTI-CAVITATION PLATE

CAUTION: Insufficient water supply (anti-cavitation plate out of the water) may cause overheating that will damage the outboard motor.

3. Motor Attachment

Attach the stern bracket to the transom and tighten the clamp screws.

CAUTION:

While operating the boat, check the tightness of the clamp screws occasionally. Tie a rope through the hole in the stern bracket and secure the other end of the rope to the boat. This will prevent accidental loss of the motor.

Motor Angle (Cruising)

Adjust the motor so the axis of the propeller is parallel with the water surface.

A \

SAFETY CLAMP SCREW ROPE

INCORRECT CAUSES BOAT TO “SQUAT” “PLOW”

INCORRECT

CAUSES BOAT TO

5. Motor Angle Adjustment

If the propeller axis is not parallel with the water surface, adjust by changing the adjusting rod position. There are four adjusting stages.

1. Push in (A) the adjusting rod, twist upwards (B) and pull out to remove.

2. Inserting the rod in the proper hole, twist it down to lock.

CAUTION: To prevent damage to

the motor or boat, make sure the ad-

justing rod is locked.

GIVES MAXIMUM PERFORMANCE

CORRECT

ADJUSTING ROD

UNLOCKED

LOCKED POSITION

4. PRE-OPERATIOM CHECKS

1. Engine oil

CAUTION:

Engine oil is a major factor affecting engine performance and service life. Nondetergent and low quality oils are not recommended, because they have inadequate lubricating properties.

Running the engine with insufficient oil can cause serious engine damage.

Use Honda 4-stroke oil or an equivalent high detergent, premium quality motor oil certified to meet or exceed U.S. automobile manufac-

turer’s requirements for Service

Classification SF. Motor oils classified SF will show this designation on

the container.

SAE low-30 is recommended for general, all-temperature use. Other viscosities shown in the chart may be used when the average temperature in your area is within the indicated range.

1. Position the outboard motor vertically, then push down the engine cover lock lever and remove the engine cover.,

2. Remove the dipstick and wipe with a clean rag.

3. Reinsert the dipstick, and check the oil level with the dipstick resting,on the filler opening (do not screw in). If the oil level is down toward the 400 cc mark, fill to the 800 cc mark.

Oil capacity: 0.8 e (0.85 U.S.

ENGINE COVER LOCK LEVER

qt.)

2. Fuel Level

Check the fuel gauge and refill the tank if the fuel level is low.

NOTE: Open the vent knob- before removing the fuel filler cap. When the

vent knob is firmly closed, the cap will be difficult to remove.

Your engine is designed to use any gasoline that, has a pump oc-

tane number tR + M) of 86 or higher, or that has a research octane number

oj 91 or higher.*Gasoline pumps at service station normally display the pump octane number.

We recommend that you use unleaded fuel because it produces fewer

engine and spark plug deposits and extends the life of exhaust system components.

Never use. stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt, dust or water in the fuel tank. Use cif a lower octane gasoline can cause persistent “pinging” or heavy “spark knock” (a metallic

rapping noise) which, if severe, can lead to engine damage.

CAUTION: If “spark knock” or “pinging” occurs at a steady engine speed under normal load, change brands of gasoline. If spark knock or pinging persists, consult your authorized Honda dealer. Failure to do so is considered misuse, and damage caused by misuse is not covered by

Honda’s Limited Warranty.

Occasionally you may experience light spark knock while operating under heavy loads. This is no cause for concern, it simply means your engine is

operating efficiently.

Fuel tank capacity: 13 e (3.4 U.S. gal.)

FUEL GAUGE

VENT KNOB

FUEL FILLER CAP

After refueling, be sure to tighten the fuel tank cap firmly.

mm!

conditions.

Gasoline is extremely flammable and is explosive under certain

Refuel in a well-ventilated area with the engine stopped. Do not smoke

or a!low flames or sparks in the area where the engine is refueled or

where gasoline is stored.

Do not overfill the tank (there should be no fuel in the filler neck). After refueling, make sure the tank cap is closed properly and securely.

Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any fuel is spilled, make sure the area is dry before starting the engine.

Avoid repeated or prolonged contact with skin or breathing of vapor.. KEEP OUT OF REACH OF CHILDREN.

GASOLINES CONTAINING ALCOHOL

If you decide to use a gasoline containing alcohol (gasohol), be sure it’s octane rating is at least as high as that recommended by Honda. There are

two types of “gasohol”:

methanol. Do not use gasohol that contains more than 10% ethanol. Do not use gasoline containing methanol (methyl or wood alcohol) that does

not also contain cosolvents and corrosion inhibitors for methanol. Never use gasoline containing more than 5% methanol, even if it has cosolvents and corrosion inhibitors.

NOTE:

Fuel system damage or engine performance problems resulting from the use of fuels that contain alcohol is not covered under the warranty. Honda cannot endorse the use of fuels containing methanol since evidence of their Suitability is as yet incomplete.

Before buying fuel from an unfamiliar station, try to find out the fuel con-

tains alcohol, if it does, confirm the type and percentage of alcohol

used. If you notice any undesirable operating symptoms while using a

gasoline that contains alcohol, or one that you think contains alcohol,

switch to a gasoline that you know does not contain alcohol.

one containing ethanol, and the other containing

3. Check the following items.

Check the propeller, the shear pin, and the cotter pin to be sure they are secure and undamaged.

Check the stern bracket to be sure the motor is securely installed.

Check steering handle operation.

Make sure you have the tool kit and spare parts with you (p. 27).

5. SPARTING THE EMGWIE

CAUTION: To prevent damage to the outboard from overheating, never run the engine with the propeller out of the water.

1. Connect the fuel line to the tank and outboard motor, as shown. Be sure the connectors are securely latched.

NOTE:

Position the fuel tank so the tank fuel line connector is no more than .l meter (3.3 ft) below the motor fuel line connector.

Do not place the fuel tank more than 2 meters (6.6 ft) away from the

mbtor.

Be sure that the fuel line is not kinked.

FEMALE FUEL LINE CONNECTOR

-- __----

MALE FUEL LINE CONNECTOR

-TO FUEL TANK

2. Open the fuel cap vent knob 2 to 3 turns.

3. Squeeze and release the primer bulb until it feels firm, indicating that fuel’ has reached the motor. Check for leaks.

w Be careful not to spill any fuel when refueling. Spilled fuel or fuel

vapor may ignite. If any fuel is spilled, make sure the area is dry before starting the engine.

NOTE: Do not use the primer bulb while the engine is running.

BULB

VENT KNOB

Starting m

can cause loss of consciousness and may lead to death. Never run the engine in an enclosed area. Be sure to provide adequate ventilation.

CAUTION: Damage to the water pump, engine components and exhaust system may occur if the motor is operated while the propeller is out of the water.

1. Put the shift lever in

Exhaust contains poisonous carbon monoxide gas; exposure

NEUTRAL.

2. Align the throttle grip handle.

START

position with the mark on the steering

3. In temperatures below 20°C (68” F) use the choke knob.

4. Pull the starter rope slowly until a resistance is felt, then pull briskly.

CAUTION:

Do not allow the starter grip to snap back against the engine. Return it

gently to prevent damage to the stater.

Do not pull the starting grip while the engine is running, as that may

damage the starter.

+ 36 hidden pages

Honda Power Equipment BF8A User Manual

CONTENTS

SAFETY LABEL LOCATIONS