Yamaha 8A Owner's Manual

8OWNER’S MANUAL6M8-F8199-1EU.S.A.EditionLIT-18626-08-33U6M81EMC 09.4.2 10:05 AM ページ 1

Safety information 5 vessel will be able to determine how best toavoid you. Give-way vessel The vessel that does not have the right-of-way has the d

Safety information 6 you are the Give-Way vessel. If the othervessel is on your port (left) side, rememberthat you should maintain course and direc-t

Safety information 7 black buoys to starboard.Many bodies of water used by boaters areentirely within the boundaries of a particularstate. The Unifor

Safety information 8ZMU01708

9 General information EMU25171 Identification numbers record EMU25183 Outboard motor serial number The outboard motor serial number isstamped on the

General information 10 EMU33520 Read manuals and labels Before operating or working on this motor: ● Read this manual. ● Read any manuals supplied wi

General information 11123ZMU05697

General information 12 EMU35132 Symbols The following symbols mean as follows.Notice/WarningRead Owner’s ManualHazard caused by continuous rotationEl

13 Specifications and requirements EMU31480 SpecificationsTIP: “(AL)” stated in the specification data belowrepresents the numerical value for the al

Specifications and requirements 14 Propeller nut: 17.0 Nm (1.73 kgf-m, 12.5 ft-lb) EMU33554 Installation requirements EMU33563 Boat horsepower rating

EMU25062ZMU01690 Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating. This man

Specifications and requirements 15 EMU25770 Start-in-gear protection Yamaha outboard motors or Yamaha-ap-proved remote control units are equippedwith

Specifications and requirements 16 EMU27270 Ring Free Fuel Additive Gasoline is a precise blend of many differentsubstances, each chosen to give cert

Specifications and requirements 17 engine for details. EMU30390 Approval label of emission control certif-icate This label is attached to the bottom

18 Components EMU2579M Components diagramTIP: * May not be exactly as shown; also may not be included as standard equipment on all mod-els. 8 EMU2580

Components 19 tions. EMU25830 Fuel joint This joint is used to connect the fuel line. EMU25841 Fuel gauge This gauge is located on either the fuel ta

Components 20 EMU25961 Throttle indicator The fuel consumption curve on the throttleindicator shows the relative amount of fuelconsumed for each thro

Components 21 EMU26001 Engine stop button To open the ignition circuit and stop the en-gine, push this button. EMU26011 Choke knob for pull type To s

Components 22 difficult to steer, which could result in an accident. EMU26261 Trim rod (tilt pin) The position of the trim rod determines theminimum

23 Installation EMU26902 Installation The information presented in this section isintended as reference only. It is not possibleto provide complete i

Installation 24NOTICE ECM01631 ● Check that the idle hole stays highenough to keep out water getting insideengine even if the boat is in stationaryw

Important manual information EMU31283 To the owner Thank you for choosing a Yamaha outboardmotor. This Owner’s Manual contains infor-mation needed fo

Installation 25 3. Secure the clamp bracket to the transomusing the bolts provided with the out-board (if packed). For details, consultyour Yamaha de

26 Operation EMU36381 First-time operation EMU30174 Breaking in engine Your new engine requires a period of break-in to allow mating surfaces of movi

Operation 27 EMU37141 Fuel level Be sure you have plenty of fuel for your trip.A good rule is to use 1/3 of your fuel to get tothe destination, 1/3 t

Operation 28 EMU27141 Engine ● Check the engine and engine mounting. ● Look for loose or damaged fasteners. ● Check the propeller for damage. EMU3695

Operation 29 3. Remove the portable tank from the boat.4. Be sure you are in a well-ventilated out-door area, either securely moored ortrailered.5. D

Operation 30 If equipped with a portable fuel tank1. Pour oil into the portable fuel tank, andthen add gasoline.2. Replace the fuel tank cap and clos

Operation 31 Symptoms include nausea, dizziness,and drowsiness. Keep cockpit and cab-in areas well ventilated. Avoid blocking exhaust outlets. 1. If

Operation 32 where it could become entangled, pre-venting it from functioning. ● Avoid accidentally pulling the cord dur-ing normal operation. Loss o

Operation 33 6. After the engine starts, slowly return themanual starter handle to its original po-sition before releasing it.7. Slowly return the th

Operation 34 shorten engine life. Gradually return thechoke knob to its home position as the en-gine warms up. EMU36530 Checks after engine warm-up E

Table of contents Safety information... 1 Outboard motor safety ... 1 Propeller...

Operation 35 EMU31742 Stopping boatWARNING EWM01510 ● Do not use the reverse function to slowdown or stop the boat as it could causeyou to lose cont

Operation 36 EMU27862 Trimming outboard motorWARNING EWM00740 Excessive trim for the operating condi-tions (either trim up or trim down) cancause bo

Operation 37 3. Reposition the rod in the desired hole.To raise the bow (“trim-out”), move the rodaway from the transom.To lower the bow (“trim-in”),

Operation 38 the bow is greatly increased, heightening thedanger of “bow steering” and making opera-tion difficult and dangerous.TIP: Depending on th

Operation 39 3. Place the tilt lock lever (if equipped) inthe release/up position.4. Pull up the shallow water lever (ifequipped).5. Hold the rear of

Operation 40 the water, resulting in loss of control. ● Use extra care when operating in re-verse. Too much reverse thrust cancause the outboard moto

41 Maintenance EMU28227 Transporting and storing outboard motorWARNING EWM00693 ● USE CARE when transporting fuel tank,whether in a boat or car. ● D

Maintenance 42 lowing procedures.NOTICE ECM01411 ● Do not place the outboard motor on itsside before the cooling water hasdrained from it completely

Maintenance 43 9. Remove the outboard motor from thetest tank.10. Drain the cooling water completely outof the motor. Clean the body thoroughly.11. I

Maintenance 44 tems may be performed by any marineengine repair establishment or individual.All warranty repairs, however, includingthose to the emis

Table of contents Engine shut-off cord (lanyard)... 27Oil... 27Engine...

Maintenance 45 EMU34445 Maintenance chart 1TIP: ● Refer to the sections in this chapter for explanations of each owner-specific action. ● The mainten

Maintenance 46Fuel line(Low pres-sure)Inspection or replace-ment as necessaryFuel pumpInspection or replace-ment as necessaryFuel/engine oil leakage

Maintenance 47 EMU34451 Maintenance chart 2 Item ActionsEvery1000 hours Exhaust guide/exhaust manifoldInspection or replace-ment as necessary

Maintenance 48 EMU28932 Greasing Yamaha marine grease (Water resistant grease) 8 EMU28956 Cleaning and adjusting spark plug The spark plug is an impo

Maintenance 49 2. Remove the spark plug. If electrode ero-sion becomes excessive, or if carbonand other deposits are excessive, youshould replace the

Maintenance 50 the outboard motor is in the water. Aflushing attachment or test tank can be used. If the boat is not equipped with a tachometerfor th

Maintenance 51 ● Check the propeller shaft oil seal for dam-age. EMU30662 Removing propeller EMU29197 Spline models 1. Straighten the cotter pin and

Maintenance 52 fastened to the transom or a stablestand. You could be severely injured ifthe outboard motor falls on you. ● Never get under the lower

Maintenance 53 drain screw. EMU29302 Cleaning fuel tankWARNING EWM00920 Gasoline is highly flammable, and its va-pors are flammable and explosive. ●

Maintenance 54 anodes on equipped models. Consult aYamaha dealer for inspection and replace-ment of internal anodes attached to the pow-er unit.

1 Safety information EMU33622 Outboard motor safety Observe these precautions at all times. EMU36501 Propeller People can be injured or killed if the

55 Trouble Recovery EMU29427 Troubleshooting A problem in the fuel, compression, or igni-tion systems can cause poor starting, loss ofpower, or other

Trouble Recovery 56 Q. Is fuel system obstructed?A. Check for pinched or kinked fuel line orother obstructions in fuel system.Q. Is fuel contaminated

Trouble Recovery 57 Q. Is load on boat improperly distributed?A. Distribute load to place boat on an evenplane.Q. Is water pump or thermostat faulty?

Trouble Recovery 58 Q. Is fuel joint connection incorrect?A. Connect correctly.Q. Is heat range of spark plug incorrect?A. Inspect spark plug and rep

Trouble Recovery 59 could result in an accident. ● Attach the engine shut-off cord to a se-cure place on your clothing, or yourarm or leg while opera

Trouble Recovery 60 6. Insert the knotted end of the emergencystarter rope into the notch in the flywheelrotor and wind the rope several turnsaround

61 Consumer information EMU29820 YAMAHA MOTOR CORPORATION, U.S.A. OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY

Consumer information 62

Consumer information 63

Consumer information 64 EMU29841 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA

Safety information 2 death when inhaled. Symptoms include nau-sea, dizziness, and drowsiness. Keep cock-pit and cabin areas well ventilated. Avoidblo

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Printed in FranceApril 2009–PDF × 1 !U6M81EMC 09.4.2 10:05 AM ページ 4

Safety information 3 Operate defensively at safe speeds andkeep a safe distance away from people, ob-jects, and other boats. ● Do not follow directly

Safety information 4 location, but all are basically the same as theInternational Rules of the Road. The rulespresented in the following section are