1. Manuals
  2. Brands
  3. Yamaha Manuals
  4. Outboard Motor
  5. 2A
  6. Owner's manual

Yamaha 2A Owner's Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

2A
3A
5A
OWNER'S MANUAL
U.S.A.Edition
LIT-18626-04-51

Advertisement

Table of Contents
loading

Related Manuals for Yamaha 2A

Summary of Contents for Yamaha 2A

  • Page 1 OWNER’S MANUAL U.S.A.Edition LIT-18626-04-51...

  • Page 3: Operation

    EMU01449 TO THE OWNER Thank you for choosing a Yamaha out- board motor. This Owner’s manual con- A CAUTION indicates special precautions tains information needed for proper oper- that must be taken to avoid damage to ation, maintenance and care. A thorough the outboard motor.

  • Page 5: Table Of Contents

    EMA20010 CONTENTS GENERAL INFORMATION BASIC COMPONENTS OPERATION MAINTENANCE TROUBLE RECOVERY INDEX READ THIS OWNER’S MANUAL CAREFULLY BEFORE OPERATING YOUR OUTBOARD MOTOR.

  • Page 7: General Information

    EMB00010 Chapter 1 GENERAL INFORMATION IDENTIFICATION NUMBERS RECORD..........1-1 Outboard motor serial number ..1-1 EMISSION CONTROL INFORMATION .1-2 SAFETY INFORMATION ......1-3 IMPORTANT LABELS ......1-5 BASIC BOATING RULES .......1-6 FUELING INSTRUCTIONS....1-10 Gasoline ..........1-11 Engine oil ..........1-11 PROPELLER SELECTION .....1-12 START-IN-GEAR PROTECTION...1-13...

  • Page 8: Identification Numbers Record

    EMB10010 IDENTIFICATION NUMBERS RECORD OUTBOARD MOTOR SERIAL NUMBER YAMAHA MOTOR CO., LTD. MADE IN JAPAN PAYS D’ORIGINE JAPON 401011 The outboard motor serial number is stamped on the label attached to the port side of the clamp-bracket. (2-hp model: attached the upper part of the swivel bracket.)

  • Page 9: Emission Control Information

    EMU01385 EMISSION CONTROL INFORMATION EMU01386 NORTH AMERICAN MODELS This engine conforms to U.S. Environ- mental Protection Agency (EPA) regula- tions 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 cowl- ing.

  • Page 10: Safety Information

    EMU00917 8 This product emits exhaust gases SAFETY which contain carbon monoxide, a col- INFORMATION orless, odorless gas which may cause brain damage or death when inhaled. Symptoms include nausea, dizziness, 8 Before mounting or operating the out- and drowsiness. Keep cockpit and board motor, read this entire manual.
  • Page 11 8 When a swimmer is in the water near you shift into neutral and shut off the engine. 8 Be informed about boating safety. Additional publications and informa- tion can be obtained from many orga- nizations, including the following: United States Coast Guard Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Affairs...

  • Page 12: Important Labels

    EMB30010 IMPORTANT LABELS WARNING LABELS 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. 202055* Keep hands,hair,and clothes away from flywheel and other rotating parts while engine is running. 6A1-83625-41 WARNING LEAKING FUEL COULD CAUSE A FIRE.

  • Page 13: Basic Boating Rules

    EMB40010 BASIC BOATING RULES Stand-on Vessel The vessel with the right-of-way has the (Rules of the road) duty to continue its course and speed, except to avoid an immediate collision. Just as there are rules which apply When you maintain your direction and when you are driving on streets and speed, the other vessel will be able to high ways, there are waterway rules...
  • Page 14 RULES WHEN ENCOUNTERING should keep the other vessel on your port (left) side. This rule doesn’t apply if VESSELS both of you will clear one another if you There are three main situations which continue on your set course and speed. you may encounter with other vessels which could lead to a collision unless the Steering Rules are followed:...
  • Page 15 maintain its course and speed. You must 1. When the sailing vessel is overtaking stay out of its way until you are clear of the power-driven vessel, the power- it. Likewise, if another vessel is passing driven vessel has the right-of-way. you, you should maintain your speed 2.
  • Page 16 Remember, markings may vary by geo- graphic location. Always consult local boating authorities before driving your boat in unfamiliar waters. MAIN CHANNEL BUOYS " 1 " " 3 " " 5 " " 7 " " 6 " LIGHTED BUOY (Port Hand)` C "...

  • Page 17: Fueling Instructions

    EMU00016 FUELING INSTRUCTIONS GASOLINE AND ITS VAPORS ARE HIGH- LY FLAMMABLE AND EXPLOSIVE! 8 Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. 8 Stop engine before refueling. 8 Refuel in a well-ventilated area. Refuel portable fuel tanks off the boat.

  • Page 18: Gasoline

    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 dif- ferent brand of gasoline or premium unleaded fuel. If unleaded gasoline is not available, then leaded regular gasoline can be used.

  • Page 19: Propeller Selection

    Conversely, a larger-pitch pro- peller is more suitable for a smaller oper- ating load. Yamaha dealers stock a range of pro- pellers, and can advise you and install a propeller on your outboard that is best suited to your application.

  • Page 20: Start-In-Gear Protection

    3 Type of propeller (propeller mark) Refer to the section “CHECKING PRO- PELLER” for instructions on propeller 602025 removal and installation. EMU01209 START-IN-GEAR PROTECTION Yamaha outboard motors or Yamaha approved remote control units equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is Neutral.

  • Page 21: Basic Components

    EMC00010 Chapter 2 BASIC COMPONENTS MAIN COMPONENTS......2-1 OPERATIONS OF CONTROLS AND OTHER FUNCTIONS ......2-4 Fuel tank..........2-4 Gear shift lever ........2-5 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 Throttle friction adjustment....2-9 Steering friction adjustment....2-10 Trim angle adjusting rod ....2-10 Tilt support knob ......2-11...

  • Page 22: Main Components

    EMU01206 MAIN COMPONENTS 101221 101222 0 Fuel cock 1 Air-vent screw q Recoil starter handle 2 Fuel tank cap w Engine stop button 3 Top cowling e Choke knob 4 Anti-cavitation plate r Trim angle adjusting-rod 5 Propeller t Rope attachment 6 Cooling water inlet y Tilt support knob 7 Clamp bracket...
  • Page 23 EMU01206 MAIN COMPONENTS 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...
  • Page 24 EMU01206 MAIN COMPONENTS 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...

  • Page 25: Operations Of Controls And Other Functions

    EMC20010 OPERATIONS OF CONTROLS OTHER FUNCTIONS EMC21012 FUEL TANK If your model was equipped with a portable fuel tank, its function is as fol- lows. 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.

  • Page 26: Gear Shift Lever

    EMC25110 GEAR SHIFT LEVER (for Tiller control model) Turning the gear-shift lever towards you engages the clutch with the forward gear so that the boat moves ahead. 1 Neutral 310021 2 Forward EMC25010 GEAR SHIFT LEVER (for Tiller control model) Turning the gear-shift lever towards you engages the clutch with the forward gear so that the boat moves ahead.

  • Page 27: Engine Stop Button

    EMC27011 ENGINE STOP BUTTON (for Tiller control model) Pushing this button opens the ignition circuit and stops the engine. 308044 EMC40110 THROTTLE CONTROL (for Tiller control model) Pushing the knob upward increases speed. The throttle grip is on the steering han- 217011 dle.

  • Page 28: Choke Knob

    EMC42110 CHOKE KNOB Turning this knob to right (setting it to ON) supplies a rich mixture required to start the engine. 305036 308044* EMC42210 CHOKE KNOB Pulling out this knob (setting it to ON) supplies a rich mixture required to start the engine.

  • Page 29: Tiller Handle

    EMC60010 TILLER HANDLE Moving the tiller handle sideways to adjust the steering direction. 503015 EMC22110 FUEL COCK A fuel cock is provided on top / bottom cowling to open or close the fuel flow CLOSE from the fuel tank. There are two posi- tions (2-hp/3-hp) or three positions (4- hp/5-hp) on this fuel cock.

  • Page 30: Throttle Friction Adjustment

    EMC64110 THROTTLE FRICTION ADJUSTMENT (for Tiller control model) A friction device provides resistance to movement of the throttle lever. This is adjustable for operator preference. An adjusting screw is located within the 204033 aprons. A friction device in the tiller handle pro- vides resistance to movement of the throttle grip.

  • Page 31: Steering Friction Adjustment

    EMD00010 STEERING FRICTION ADJUSTMENT (for Tiller control model) A friction device provides resistance to steering movement. This is adjustable for operator preference. An adjusting screw/bolt is located on the swivel bracket. To increase the resistance: Turn the adjusting screw/bolt clockwise. To decrease the resistance: Turn the adjusting screw/bolt counter- clockwise.

  • Page 32: Tilt Support Knob

    EMD47010 TILT SUPPORT KNOB To keep the outboard motor in the tilted- up position, push the tilt support knob under the swivel bracket. 403022 EMD48010 TILT SUPPORT BAR The tilt support bar keeps the outboard motor in the tilted up position. 403041 403016 2-11...

  • Page 33: Top Cowling Lock Lever

    EMD63010 TOP COWLING LOCK LEVER To remove the engine top cowling, pull up the front and rear lock levers. Then lift off the cowling. When replacing the cowling, check to be sure it fits properly in the rubber seal. Then lock the cowling again by moving the levers downward.
  • Page 34 -MEMO-...

  • Page 35: Operation

    EMF00010 Chapter 3 OPERATION INSTALLATION ........3-1 Mounting the outboard motor ..3-2 Clamping the outboard motor ..3-4 FILLING FUEL AND ENGINE OIL ..3-5 Filling fuel ...........3-5 Gasoline and oil mixing.....3-6 PRE-OPERATION CHECKS ....3-8 BREAKING IN (RUNNING IN) ENGINE...........3-9 STARTING ENGINE ......3-11 WARMING UP ENGINE .......3-15 SHIFTING..........3-16 Forward ..........3-16...

  • Page 36: Installation

    EMF10010 INSTALLATION Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat or acce- ssories such as transom ladders/depth finder transducers) can create airborne water spray while the boat is cruising. Severe engine damage may result if the motor is operated continuously in the presence of airborne water spray.

  • Page 37: Mounting The Outboard Motor

    EMU00176 MOUNTING THE OUTBOARD MOTOR Improper mounting of the outboard motor could result in hazardous condi- tions such as poor handling, loss of con- trol, or fire hazards. Observe the follow- ing: 8 The information presented in this sec- tion is intended as reference only. It is not possible to provide complete instructions every...
  • Page 38 Overpowering a boat may cause severe instability. Do not install an outboard motor with more horsepower than the maximum rating on the capacity plate of the boat. If the boat does not have a capacity plate, consult the boat manufac- turer.

  • Page 39: Clamping The Outboard Motor

    EMF14010 CLAMPING THE OUTBOARD MOTOR 1) Place the outboard on the transom so that it is positioned as close to the center as possible. Tighten the tran- clamp screws evenly securely. Check the clamp-screws for tightness occasionally during opera- 409011 tion of the motor as they can work loose due to engine vibration.

  • Page 40: Filling Fuel And Engine Oil

    FILLING FUEL AND ENGINE OIL EMF30110 FILLING FUEL 1) Put the outboard in the tilt-down position. Remove the fuel tank cap. 2) Use a funnel if the nozzle on the fuel can or pump is not small enough or 222013 long enough to fit into the mouth of the fuel tank.

  • Page 41: Gasoline (Petrol) And Oil Mixing

    While many additives available may reduce deposits, Yamaha recommends the use of Ring Free Fuel Additive, avail- able from your Yamaha dealer. Ring Free has repeatedly proven its ability to clean combustion deposits from inside the engine, notably the critical piston- ring-land area, and fuel system compo- nents.
  • Page 42 Mixing ratio 25 : 1 12 L 14 L 24 L Gasoline (0.26 US gal, (3.2 US gal, (3.7 US gal, (6.3 US gal, (Petrol) 0.22 Imp gal) 2.6 Imp gal) 3.1 Imp gal) 5.3 Imp gal) 0.04 L 0.48 L 0.56 L 0.96 L Engine oil...

  • Page 43: Pre-Operation Checks

    EMF40012 PRE-OPERATION CHECKS If any item in the pre-operation check is not working properly, have it inspected and repaired before operating the out- board motor. Otherwise, an accident could occur. EMF41110 Fuel 8 Check to be sure you have plenty of fuel for your trip.

  • Page 44: Breaking In (Running In) Engine

    EMF43510 Engine 8 Check the engine and engine mount- ing. 8 Look for loose or damaged fasteners. 8 Check the propeller for damage. Do not start the engine out of water. Overheating and serious engine damage can occur. EMF50012 BREAKING IN (RUNNING IN) ENGINE Your new engine requires a period of break-in (running-in) to allow mating sur-...
  • Page 45 EMU00226 Run the engine under load (in gear with a propeller installed) as follows. 1) First 10 minutes: Run the engine at the lowest possi- ble-speed. A fast idle in neutral is best. 2) Next 50 minutes: Do not exceed half throttle (approxi- mately 3,000 r/min).

  • Page 46: Starting Engine

    EMU00958 STARTING ENGINE 8 Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstruc- tions. Be sure there are no swimmers in the water near you. 8 When the air-vent screw is loosened, gasoline(petrol) vapor will be released.
  • Page 47 2) Set the fuel cock in the “OPEN” posi- tion OPEN OPEN 315021* 3) If you select the separate fuel tank, connect the fuel joints securely and squeeze the primer bulb with the out- let end up until you feel it become firm.
  • Page 48 EMU00987 PROCEDURE FOR TILLER CONTROL MODEL 4) Place the gear shift lever in Neutral position (except for 2-hp). NOTE: The start-in-gear protection device per- mits the engine to be started only when it is in Neutral. 5) Place the throttle control lever/grip in the “START”...
  • Page 49 EMU00988 Manual Start Model 2-hp model: The propeller rotates when- ever the engine is running. Do not move the throttle control lever from the start START position during warm-up. The boat could unexpectedly start to move, which could result in an accident. 6) Place the choke knob in the “START”...

  • Page 50: Warming Up Engine

    Overheating and serious damage could occur. Stop the engine and check to see if the water inlet on the lower casing is blocked. If the prob- lem cannot be found and corrected, con- sult your Yamaha dealer. 3-15...

  • Page 51: Shifting

    EMG20010 SHIFTING Before shifting, make sure there are no swimmers or obstacles in the water near you. To change the boat direction or shifting position from forward to reverse or vice-versa, close the throttle first so that the engine idles (or runs at low speeds). FORWARD When the engine is started, the propeller turns and the boat begins to move for-...

  • Page 52: Reverse

    REVERSE The outboard motor will make a full 360° turn in its bracket (full-pivot system). Simply turn the engine around 180° turn with the steering handle facing to the rear to back up the boat. 310023 1) Place the throttle control grip in the fully closed position.

  • Page 53: Stopping Engine

    EMG38010 STOPPING ENGINE Let it cool off for a few minutes at idle or low speed first. Stopping the engine immediately after operating at high speed is not recommended. EMG40711 PROCEDURE 1) Push and hold the engine stop switch until the engine comes to a complete stop.

  • Page 54: Trimming Outboard Motor

    EMU01412 TRIMMING OUTBOARD MOTOR The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. The correct trim angle will help improve performance and fuel economy while reducing strain on the engine. The correct trim angle depends upon the combination of boat, engine, and propeller.

  • Page 55: Adjusting Trim Angle

    ADJUSTING TRIM ANGLE EMU00951 Manual tilt model There are 4 or 5 holes provided in the clamp bracket to adjust the outboard motor trim angle. 1) Stop the engine. 2) Remove the trim angle adjusting rod 1 from the clamp bracket while tilt- ing the motor up slightly.
  • Page 56 EMU00282 Bow Up When the boat is on plane, a bow-up atti- tude result in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees. When trimmed out, the boat may have more tendency to steer to one side or the other.

  • Page 57: Cruising In Shallow Water

    EMG70011 CRUISING IN SHALLOW WATER The outboard motor can be tilted up par- tially to allow operation in shallow water. 8 Place the gear shift in the Neutral posi- tion before using the shallow water cruising system. 8 Run the boat at the lowest possible speed when using the shallow water cruising system.
  • Page 58 EMU00963 PROCEDURE 1) Place the gear shift lever in Neutral and face the motor forward. 2) Slightly tilt up the engine until the tilt-support bar is turned to the locked position automatically to support the engine. 403015 3) When bringing the engine to the home position, slightly tilt up the engine and slowly tilt the engine down pulling up the lever of the tilt...

  • Page 59: Tilting Up/Down

    EMU00284 TILTING UP/DOWN If the engine will be stopped for some time, or if the boat is moored in shallows, the engine should be tilted up to protect the propeller and casing from damage by collision with obstructions, and also to reduce salt corrosion.
  • Page 60 EMU00962 PROCEDURE FOR TILTING UP 1) Tighten the air vent screw. If the fuel connector is provided on the motor, remove the fuel line con- nection from the motor. 222012 2) Put the fuel cock lever in the closed position. CLOSE CLOSE 315016...
  • Page 61 4) Hold the rear of the top cowling with one hand and fully tilt the engine up. 5) Push the tilt support knob into the clamp bracket. 403022 5) The tilt support bar turns to the locked position automatically. 403016 EMU00298 PROCEDURE FOR TILTING DOWN 1) Slightly tilt up the engine.

  • Page 62: Cruising In Other Conditions

    EMH60010 CRUISING IN OTHER CONDITIONS CRUISING IN SALT WATER After operating in salt water, wash out the cooling-water passages with fresh water to prevent them from becoming clogged-up with salt deposits. NOTE: Refer to cooling system flushing instruc- tions in “TRANSPORTING AND STORING OUTBOARD MOTOR”.

  • Page 63: Maintenance

    EMK00010 Chapter 4 MAINTENANCE SPECIFICATION DATA......4-1 TRANSPORTING AND STORING OUTBOARD MOTOR ......4-3 Trailering outboard motor....4-3 Storing outboard motor.....4-4 PERIODIC MAINTENANCE ....4-8 Replacement parts ......4-8 Maintenance chart......4-9 Cleaning and adjusting spark plug............4-10 Checking fuel system .......4-12 Inspecting and replacing fuel filter ...........4-13 Adjusting idling speed .....4-14 Checking wiring and connectors..4-15 Exhaust leakage........4-15...

  • Page 64: Specification Data

    EMR50302* SPECIFICATION DATA Model Unit 2MHA Item DIMENSIONS Overall Length mm (in.) 607 (23.9) Overall Height mm (in.) 916 (36.1)/— Overall Width mm (in.) 214 (8.4) Transom height mm (in.) 417 (16.4)/— Weight kg (lb.) 10 (22.0)/— PERFORMANCE Full throttle operating range r/min 4,000 ~ 5,000 Maximum output...
  • Page 65 3MHA 5MHA 628 (24.7) 677 (26.7) 997 (39.3)/— 1,011 (39.8)/1,138 (44.8) 289 (11.4) 322 (12.7) 441 (17.4)/— 444 (17.5)/571 (22.5) 16.5 (36.3)/— 21 (46.2)/21.5 (47.3) 4,500~5,500 4,500~5,500 2.2 (3) at 5,000 r/min. 3.7 (5) at 5,000 r/min. 1,150~1,250 1,100~1,200 2-stroke, L1 2-stroke, L1 70 (4.27) 103 (6.3)

  • Page 66: Transporting And Storing Outboard Motor

    EMU01369 TRANSPORTING AND STORING OUTBOARD MOTOR Leaking fuel is a fire hazard. When trans- porting and storing the outboard motor, close the air vent screw and fuel cock to prevent fuel from leaking. TRAILERING OUTBOARD MOTOR The motor should be trailered and stored in the normal running position.

  • Page 67: Storing Outboard Motor

    102015 EMU00328 STORING OUTBOARD MOTOR When storing your Yamaha outboard for prolonged periods of time, (2 months or longer), several important procedures must be performed to prevent expensive damage. This is especially important for...
  • Page 68 “Yamaha Fuel Conditioner and Stabilizer” (Part No. LUB-FUELC-12- 00) to each gallon of fuel. NOTE: The use of “Yamaha Fuel Conditioner and Stabilizer” eliminates the need to drain the fuel system. Consult your Yamaha dealer or other qualified mechanic if the fuel system is to be drained instead.
  • Page 69 4) Run the engine at a fast idle for 10~15 minutes. 5) Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine Fogging Oil” (Part No. LUB- STRRT-12-00) alternately into each carburetor. When properly done, the engine will smoke excessively and almost stall.
  • Page 70 EMK26010 Lubrication 1) Remove the spark plugs, and spray a 10 second spray of Yamaha Stor-Rite Engine Fogging Oil into each cylin- der. Grease the spark plug threads and reinstall the spark plugs and torque to proper specification. (Refer to the Periodic Maintenance section, “Cleanning and adjusting...

  • Page 71: Periodic Maintenance

    If the owner is not familiar with machine servicing, this work should be done by a Yamaha dealer or other quali- fied mechanic. A service manual is available for purchase through a Yamaha dealer for owners who...

  • Page 72: Maintenance Chart

    Frequency of maintenance operations may be adjusted according to the operating con- ditions, but the following table gives general guidelines. The mark ( ) indicates the check-ups which you may carry out yourself. The mark ( 1 ) indicates work to be carried out by your Yamaha dealer. Initial Every Interval...

  • Page 73: Cleaning And Adjusting Spark Plug

    Do not attempt to diagnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.
  • Page 74 When fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the spark plug to the correct torque. Spark plug torque: Refer to “SPECIFICATIONS”, page 4-1. NOTE: If a torque-wrench is not available when you are fitting a spark plug, a good esti- mate of the correct torque is 1/4 to 1/2 a...

  • Page 75: Checking Fuel System

    Keep away from sparks, cigarettes, flames or other sources of ignition. Check the fuel line for leaks, cracks, or malfunctions. If any problem is found, it should be repaired immediately by Yamaha dealer other qualified mechanic. Checking points 8 Fuel system parts leakage.

  • Page 76: Inspecting And Replacing Fuel Filter

    Check the fuel filter periodically. The fuel filter is a one-piece, disposable type. If foreign matter is found in the fil- ter, replace it. For replacement of the 207034 fuel filter, consult a Yamaha dealer. 4-13...

  • Page 77: Adjusting Idling Speed

    EMU01002 ADJUSTING IDLING SPEED 8 Do not touch or remove electrical parts when starting or during operation. 8 Keep hands, hair and clothes away from flywheel and other rotating parts while engine is running. 8 2-hp model: Do not move the throttle control lever from the start position during warm-up.

  • Page 78: Checking Wiring And Connectors

    If not warmed up fully, the speed setting will tend to be too high. If you have diffi- culty obtaining the specified idle, consult a Yamaha dealer or other qualified mechanic. EMK78010 CHECKING WIRING AND...

  • Page 79: Greasing

    EMU00366 GREASING Yamaha marine grease (Water resistant grease) 103081 4-16...
  • Page 80 EMU00366 GREASING Yamaha marine grease (Water resistant grease) 103082 4-17...
  • Page 81 EMU00366 GREASING Yamaha marine grease (Water resistant grease) 103091 4-18...

  • Page 82: Checking Propeller; Shear Pin And Cotter Pin

    EML06011* CHECKING PROPELLER; SHEAR PIN AND COTTER PIN You could be seriously injured if the engine accidentally starts while you are near the propeller. 8 Before inspecting, removing 210012 installing the propeller, remove the spark plug caps from the spark plugs. Also, put the shift control in Neutral, put the main switch in the “OFF”...
  • Page 83 3) Remove the shear-pin. 1 Shear pin 2 Propeller 3 Cotter pin Installation 602061 1) Apply Yamaha marine grease (water- resistant grease) to the propeller- shaft. 2) Insert the shear-pin into the hole in the propeller-shaft. 3) Align the shear-pin with the groove in the propeller-boss, and slide the propeller over the propeller-shaft.
  • Page 84 Removal 1) Using the pliers provided, straighten the cotter-pin and pull it out. 2) Remove the propeller nut. 3) Remove the propeller. 1 Thrust washer 4 Propeller nut 2 Propeller 5 Cotter pin 3 Washer Installation 602056 1) Apply Marine grease (water-resistant grease) to the propeller-shaft.

  • Page 85: Changing Gear Oil

    2 Oil drain-plug Inspect the used oil after it has been drained. If the oil is milky, water is get- ting into the gearcase which can cause gear damage. Consult a Yamaha dealer for repair of the lower unit seals. 601036 4-22...

  • Page 86: Cleaning Fuel Tank

    8 If you have any question about prop- erly doing this procedure, consult your Yamaha dealer. 8 Keep away from sparks, cigarettes, flames or other sources of ignition when cleaning the fuel tank.

  • Page 87: Inspecting And Replacing Anode

    Reinstall the fuel hose joint assembly and tighten the screws firmly. EML24010 INSPECTING AND REPLACING ANODE Yamaha outboard motor is protected from corrosion by sacrificial anode. Check the anode periodically. Remove the scales from surfaces of the anode. For the replacement of the anode, con- sult a Yamaha dealer.

  • Page 88: Checking Bolts And Nuts

    Check the motor for scratches, nicks, or flaking paint. Areas with damaged paint are more likely to corrode. If necessary, clean and paint the areas. Consult a Yamaha dealer for touch-up paint. EMP60000 COATING THE BOAT BOTTOM A clean hull improves boat performance.

  • Page 89: Trouble Recovery

    EMN00010 Chapter 5 TROUBLE RECOVERY TROUBLESHOOTING ....5-1 TEMPORARY ACTION IN EMERGENCY........5-5 Impact damage......5-5 Starter will not operate....5-6 Treatment of submerged motor...........5-9...

  • Page 90: Troubleshooting

    A problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. The troubleshooting chart describes basic checks and possi- ble remedies. (This chart covers all Yamaha outboard motors. Therefore, some items may not apply to your model.) If your outboard motor requires repair, bring it to a Yamaha dealer.
  • Page 91 3. Fill tank with clean, fresh fuel. 4. Fuel filter clogged. 4. Clean or replace filter. 5. Failed ignition parts. 5. Have serviced by a Yamaha dealer. 6. Spark plug gap incorrect. 6. Inspect and adjust as specified. 7. Poor connections or damaged 7.
  • Page 92 12. Check wires for wear or breaks. 12. Poor connections or damaged Tighten all loose connections. ignition wiring. Replace worn or broken wires. 13. Have serviced by a Yamaha 13. Failed ignition parts. dealer. 14. Check and replace oil with 14. Specified engine oil not used.
  • Page 93 Possible Cause Remedy 1. Propeller damaged. 1. Have propeller repaired or replaced. 2. Propeller shaft damaged. 2. Have serviced by a Yamaha dealer. D. Engine vibrates 3. Weeds or other foreign matter 3. Remove and clean propeller. excessively. tangled on propeller.

  • Page 94: Temporary Action In Emergency

    Also, inspect the boat damage . 3) However damage is found or not 607011 found, go back to a nearest harbor slowly and carefully. 4) Have a Yamaha dealer inspection of the outboard motor, before operating it again.

  • Page 95: Starter Will Not Operate

    EMN30010 STARTER WILL NOT OPERATE If the starter mechanism does not oper- ate (engine cannot be cranked with the starter), the engine can be started with an emergency starter rope. 8 Use this procedure only in an emer- gency and only to return to port for repairs.
  • Page 96 Procedure 1) Remove the spark plug cap cover by removing two screws. 2) Remove the aprons by removing eight screws. 3) Remove the starter mechanism by removing three bolts. 4) Prepare the engine for starting. See STARTING ENGINE for procedures. 5) To start the engine with the emer- gency starter rope, insert the knotted end of the rope into the notch in the...
  • Page 97 Procedure 1) Remove the top cowling. 2) Remove the starter by removing the bolts. 3) Disconnect the start-in-gear protec- tion cable from the starter. 4) Prepare the engine for starting. See STARTING ENGINE for procedures. Be sure the engine is in Neutral. 208021 5) To start the engine with emergency starter rope, insert the knotted end of...

  • Page 98: Treatment Of Submerged Motor

    EMN50011 TREATMENT OF SUBMERGED MOTOR If the outboard motor is submerged, immediately take it a Yamaha dealer. Otherwise, some corrosion may begin almost immediately. cannot immediately take the outboard motor to a Yamaha dealer, follow the procedure 107012 bellow for taking care to minimize engine damage.

  • Page 99: Index

    EMP00010 Chapter 6 INDEX INDEX ..........6-1...

  • Page 100: Record

    EMP10010 INDEX Gasoline (petrol) and oil mixing...3-6 Gasoline (petrol) ........1-11 Gear shift lever........2-5 Adjusting idling speed ......4-14 Greasing ..........4-16 Adjusting trim angle......3-20 Air vent screw ........2-4 Identification numbers record ....1-1 Impact damage ........5-5 Basic Boating rules ........1-6 Important labels........1-5 Breaking in (running in) engine....3-9 Index ............6-1 Inspecting and replacing anode ..4-24 Changing gear oil ........4-22...
  • Page 101 Temporary action in emergency ..5-5 Throttle control ........2-6 Throttle friction adjustment ....2-9 Throttle indicator ........2-6 Tiller handle ...........2-8 Tilt support bar ........2-11 Tilt support knob........2-11 Tilting up/down........3-24 Top cowling lock lever ......2-12 Trailering outboard motor ....4-3 Transporting and storing outboard motor ............4-3 Treatment of submerged motor...5-9 Trim angle adjusting rod.....2-10...
  • Page 102 1. Be sure your new Yamaha is registered for warranty. Your boat dealer should do this at the time of sale. Make sure your dealer gives you a copy of the completed Yamaha regis- tration card for your records.
  • Page 103 5. Your warranty applies specifically to repairs made in the country of purchase. If your U.S.-purchased Yamaha needs warranty service while in Canada, or your Canadian pur- chased Yamaha needs service while in the United States, Yamaha will assist the local dealer whenever possible. However, some products available in one country may not be sold or serviced in the other.
  • Page 104 Owner’s Manual. The owner of the outboard motor shall give notice to an authorized Yamaha marine dealer of any and all apparent defects within ten (10) days of discovery and make the motor available at that time for inspection and repairs at the dealer’s place of business.
  • Page 105 TRANSFER OF WARRANTY. Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having the motor inspected by an authorized Yamaha outboard dealer and requesting the dealer to submit a change of registration to Yamaha Motor Corporation, U.S.A.
  • Page 106 The federal government requires each manufacturer of a motor vehicle to maintain a complete, up-to-date list of all first purchasers against the possibility of a safety-related defect and recall. This list is complied from the purchase registrations sent to Yamaha Motor Corporation, U.S.A.
  • Page 107 Yamaha outside the U.S.A. or Canada, please contact an autho- rized Yamaha dealer in your country. Keep a copy of your sales contract or invoice for the purchase of your Yamaha and present it if you need warranty repairs. This document should show the date of purchase, which is important evidence the repairing dealer will need to be sure your Yamaha is covered by warranty.
  • Page 110 Printed in Japan March 2001—0.5 6A1-28199-1L (2BMH/3AMH/5CMH) Printed on recycled paper...

This manual is also suitable for:

3a5a

Table of Contents