Yamaha 40C Owner's Manual
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Yamaha 40C Owner's Manual

Yamaha 40C Owner's Manual

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40C
50C
OWNER'S MANUAL
U.S.A.Edition
LIT-18626-05-44

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Summary of Contents for Yamaha 40C

  • Page 1 OWNER’S MANUAL U.S.A.Edition LIT-18626-05-44...
  • Page 3 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 4: 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 5: General Information

    EMB00010 Chapter 1 GENERAL INFORMATION IDENTIFICATION NUMBERS RECORD ............1-1 Outboard motor serial number...1-1 Key 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 BATTERY REQUIREMENT ....1-12 PROPELLER SELECTION .......1-13 START-IN-GEAR PROTECTION ....1-14...

  • Page 6: Identification Numbers Record

    Record your outboard motor serial num- 401012 ber in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your out- board motor is stolen. 1 Outboard motor serial number...

  • Page 7: Emission Control Information

    EMU01385 EMISSION CONTROL INFORMATION EMU01386 NORTH AMERICAN MODELS This engine conforms to U.S. Environ- mental Protection Agency (EPA) regula- 000909 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 8: Safety Information

    8 This product emits exhaust gases which EMU00917 SAFETY contain carbon monoxide, a colorless, INFORMATION odorless gas which may cause brain damage or death when inhaled. Symp- toms include nausea, dizziness, and 8 Before mounting or operating the out- drowsiness. Keep cockpit and cabin board motor, read this entire manual.
  • Page 9 8 When a swimmer is in the water near you shift into neutral and shut off the engine. 8 Be informed about boating safety. Addi- tional publications and information can be obtained from many organizations, including the following: United States Coast Guard Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Affairs...

  • Page 10: Important Labels

    EMB30011 IMPORTANT LABELS WARNING LABELS WARNING GBe sure shift control is in neutral before starting engine. (except 2HP) GDo not touch or remove electrical parts when starting or during operation. 202016* GKeep hands,hair,and clothes away from flywheel and other rotating parts while engine is running. 6A1-83625-41...

  • Page 11: Basic Boating Rules

    EMB40010 Stand-on vessel BASIC BOATING RULES The vessel with the right-of-way has the duty to continue its course and speed, (Rules of the road) except to avoid an immediate collision. When you maintain your direction and Just as there are rules which apply when speed, the other vessel will be able to you are driving on streets and high ways, determine how best to avoid you.
  • Page 12 RULES WHEN ENCOUNTERING will clear one another if you continue on your set course and speed. VESSELS There are three main situations which you may encounter with other vessels which could lead to a collision unless the Steer- ing Rules are followed: Meeting (you are approaching another vessel head-on) Crossing (you are travelling across the...
  • Page 13 its course and speed. You must stay out Sailing vessel right-of-way of its way until you are clear of it. Like- Sailing vessels should normally be given wise, if another vessel is passing you, you the right-of-way. The exceptions to this should maintain your speed and direction are: so that the other vessel can steer itself...
  • Page 14 tion. These markers are white with black letters and orange boarders. They signify speed zones, restricted areas, danger areas, and general information. Remember, markings may vary by geo- graphic location. Always consult local boating authorities before driving your boat in unfamiliar waters. MAIN CHANNEL BUOYS "...

  • Page 15: 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 16: Gasoline

    EMU01804 GASOLINE 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 differ- ent brand of gasoline or premium unlead- ed fuel. EMU00027 Gasohol There are two types of gasohol: gasohol containing ethanol and that containing methanol.

  • Page 17: Battery Requirement

    EMU01775 BATTERY REQUIREMENT Do not use a battery that does not meet the specified capacity. If a battery which does not meet specifications is used, the electric system could perform poorly or be overloaded, causing electric system damage. For electric start models, choose a battery which meets the following specifications.

  • Page 18: 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 19: Start-In-Gear Protection

    3 Type of propeller (propeller mark) Refer to the section “CHECKING PRO- PELLER” for instructions on propeller 602011 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 20 -MEMO-...

  • Page 21: Basic Components

    EMC00010 Chapter 2 BASIC COMPONENTS MAIN COMPONENTS......2-1 OPERATIONS OF CONTROLS AND OTHER FUNCTIONS ........2-2 Fuel tank ..........2-2 Remote control ........2-3 Power trim/tilt switch ......2-7 Warning indicator.........2-8 Digital tachometer........2-9 Trim tab ..........2-12 Tilt support lever ........2-13 Top cowling lock lever.......2-13 WARNING SYSTEM ......2-14 Overheat warning.......2-14 Oil level warning / oil filter clogging warning .......2-15...

  • Page 22: Main Components

    EMU01206 MAIN COMPONENTS 1 Oil filler access cap 9 Anti-cavitation plate 2 Warning indicator lamp 0 Anode 3 Clamp bracket q Trim angle adjusting rod 4 Battery lead w Tilt support lever 5 Anode e Top cowling 6 Cooling water inlet * r Remote control box 7 Propeller * t Digital tachometer...

  • Page 23: 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) EMC31010 Fuel hose joint This connector is provided for connecting...

  • Page 24: Remote Control

    EMU00096* REMOTE CONTROL Both the shifter and the throttle are actu- ated by the remote control lever. Addi- tionally, the remote control also has the electrical switches. 1 Remote control lever 2 Neutral interlock trigger 3 Neutral throttle lever 701011* 4 Main switch 5 Engine stop lanyard switch 6 Power trim and tilt switch (if equipped)
  • Page 25 EMC50110 Neutral interlock trigger To shift out of Neutral, the neutral inter- lock trigger of the remote control lever must first be pulled up. EMC50210 Neutral throttle lever To open the throttle without shifting into 701036 either Forward or Reverse, place the remote control lever in the Neutral posi- tion and lift the neutral throttle lever.
  • Page 26 EMU01331 Power Trim/Tilt Switch The power trim/tilt adjusts the motor angle in relation to the transom. The power trim/tilt switch is located on the remote control lever grip. Pushing the switch “UP” trims the motor up, then tilts the motor up. Pressing the switch “DN” tilts the motor down and trims the motor 701034 down.
  • Page 27 EMC28210 Engine stop lanyard switch The lock-plate on the end of the lanyard must be attached to the engine stop switch for the engine to run. The lanyard 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 lanyard will pull out the lock plate, stopping ignition to the...

  • Page 28: Power Trim/Tilt Switch

    EMC87011 Throttle friction adjusting screw A friction device in the remote control box provides resistance to movement of the remote control lever. This is adjustable for operator preference. An adjusting screw is located at the front of the remote control box. Resistance Screw 701035...

  • Page 29: Warning Indicator

    Use the power trim/tilt switch located on the bottom engine cowling only when the boat is at a complete stop with the engine off. Attempting to use the cowling-mounted power trim/tilt switch while the boat is moving could increase the risk of falling overboard and could distract the operator, increas- ing the risk of collision with another boat or an obstacle.

  • Page 30: Digital Tachometer

    EMU01614 DIGITAL TACHOMETER This gauge contains the tachometer, trim meter, hour meter, oil level indicator, and the overheat warning indicator. 1 Tachometer 2 Trim meter 3 Hour meter 4 Oil level indicator 001078 5 Overheat warning indicator 6 Set button 7 Mode button NOTE: All segments of the display will light...
  • Page 31 EMU01109 Trim Meter This meter shows the trim angle of your outboard motor. NOTE: 8 Memorize the trim angles that work best for your boat under different condi- tions. Adjust the trim angle to the desired setting by operating the power 001050 trim and tilt switch.
  • Page 32 EMU00138 Oil-Level Indicator This indicator shows the engine oil level. If the oil level falls below the lower limit, the warning indicator will start to blink. Refer to the sections “FILLING OIL” and “OIL LEVEL WARNING” for details. 1 Oil-level indicator 001051 Do not operate the engine without oil.

  • Page 33: Trim Tab

    EMD04011* TRIM TAB The trim tab should be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force. An improperly adjusted trim tab may cause difficult steering. Always test run after the trim tab has been installed or replaced to be sure steering is correct.

  • Page 34: Tilt Support Lever

    EMD60010 TILT SUPPORT LEVER Power trim & tilt/Hydro tilt model To keep the outboard motor in the tilted- up position, lock the tilt support lever to the clamp bracket. 403011 EMD62011 TOP COWLING LOCK LEVER To remove the engine top cowling, turn the lock lever.

  • Page 35: Warning System

    EMD80010 WARNING SYSTEM Do not continue to operate the engine if the warning device has activated. Consult your Yamaha dealer if the problem can- 303012 not be located and corrected. EMD82012* OVERHEAT WARNING This engine has an overheat warning device.

  • Page 36: Oil Level Warning / Oil Filter Clogging Warning

    EMD84012* OIL LEVEL WARNING / OIL FILTER CLOGGING WARNING This engine has an oil level warning sys- tem. If oil level falls below lower limit, the warning device will activate. 303012 ); Included ( ); N/A — Warning device Tiller Remote activation control...

  • Page 37: Operation

    EMF00010 Chapter 3 OPERATION INSTALLATION ........3-1 Mounting the outboard motor....3-2 FILLING FUEL AND ENGINE OIL ....3-4 Filling fuel..........3-4 Filling oil ..........3-5 PRE-OPERATION CHECKS ......3-8 Operation after a long period of storage...........3-9 BREAKING IN ENGINE ......3-10 STARTING ENGINE .......3-12 WARMING UP ENGINE ......3-15 SHIFTING ..........3-16 Forward ..........3-16 Reverse..........3-16...

  • Page 38: Installation

    EMF10010 INSTALLATION Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat or accessories such as transom ladders/depth finder trans- ducers) can create airborne water spray while the boat is cruising. Severe engine damage may result if the motor is operat- ed continuously in the presence of air- borne water spray.

  • Page 39: Mounting The Outboard Motor

    EMF12012 MOUNTING THE OUTBOARD MOTOR Improper mounting of the outboard motor could result in hazardous conditions such as poor handling, loss of control, or fire hazards. Observe the following: 8 The information presented in this sec- tion is intended as reference only. It is possible provide complete...
  • Page 40 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 capac- ity plate, consult the boat manufacturer. EMU01299 Mounting Height To run your boat at optimum efficiency,...

  • Page 41: Filling Fuel And Engine Oil

    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 components.

  • Page 42: Filling Oil

    EMU01800 FILLING OIL This engine uses the oil injection system, which provides superior lubrication by ensuring the proper oil ratio for all operat- ing conditions. No fuel premixing is need- ed (except during break-in). Simply pour gasoline into the fuel tank and oil into the oil tank.
  • Page 43 EMF34110 Procedure Electric start model 1) Turn the oil filler access cap on top of the top cowling counterclockwise and open it. 203014 2) Open the oil tank filler cap by pulling a tab on the cap. 203015 3) Slowly fill the engine oil into the engine oil tank.
  • Page 44 EMD33110 Oil level indicator Electric start model The various oil-level system functions are as follows: Oil level warning Oil level warning indicator lamp indicator Engine oil tank Remarks (Analog tachome- (Digital tachometer) ter/Bottom cowling) Green more than 4 50 cm No refilling necessary.

  • Page 45: 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 46: Operation After A Long Period Of Storage

    212011* tion system should supply oil normal- ly. If no oil is flowing after 10 minutes of idling, consult your Yamaha dealer. Be sure to take the above steps when operating the engine after a long period of storage. Otherwise engine seizure...

  • Page 47: Breaking In Engine

    EMU01776 BREAKING IN ENGINE Your new engine requires a period of break-in to allow mating surfaces of mov- ing parts to wear in evenly. Correct break- in will help ensure proper performance and longer engine life. 8 Failure to follow the break-in procedure could result in reduced engine life or even severe engine damage.
  • Page 48 EMU01784 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 49: Starting Engine

    EMU01147 STARTING ENGINE 8 Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the 902053 water near you. 8 When the air vent screw is loosened, gasoline (petrol) vapor will be released.
  • Page 50 EMF65010 PROCEDURE FOR REMOTE CONTROL MODEL 4) Place the remote control lever in the Neutral position. NOTE: 8 The start-in-gear protection device pre- vents the engine from starting except when in Neutral. 701015 8 It is not necessary to open the free accelerator lever or Neutral throttle lever while starting.
  • Page 51 EMF63910 Electric start model 7) Turn the main switch to “START”, and START hold it for a maximum of 5 seconds. 8) Immediately the engine starts, release the main switch to return it to “ON”. 8 Do not turn the main switch to “START”...

  • Page 52: Warming Up Engine

    EMG00210 WARMING UP ENGINE 1) Before beginning operation, allow the engine to warm up at idling speed for 3 minutes. (Failure to do this will shorten engine life.) 2) Check for a steady flow of water from 309014 the cooling-water pilot hole. A continuous flow of water from the pilot hole shows that the water pump is pumping water through the cooling pas-...

  • Page 53: Shifting

    EMG20111 SHIFTING Before shifting, make sure there are no swimmers or obstacles in the water near you. To change the shifting position from for- ward to reverse or vice-versa, close the throttle first so that the engine idles (or runs at low speeds). EMU00264 FORWARD Pull up the neutral interlock trigger (if...

  • Page 54: 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. EMG35310 PROCEDURE START Main switch equipped model 1) Turn the main switch to “OFF”. NOTE: The engine can also be stopped by pulling the lanyard from the engine stop...

  • Page 55: 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.

  • Page 56: Adjusting Trim Angle

    ADJUSTING TRIM ANGLE EMU01401 Power Trim/Tilt Model 8 Be sure all people are clear of the out- board motor when adjusting trim/tilt angle, also be careful not to pinch any body parts between the drive unit and clamp bracket. 8 Use caution when trying a trim position for the first time.
  • Page 57 EMU19160 Trim angle settings and boat handling When the boat is on plane, a bow-up atti- tude results in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees.

  • Page 58: Tilting Up/Down

    NOTE: Depending on the type of boat, the out- board motor trim angle may have little effect on the trim of the boat when oper- ating. EMH10110 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...
  • Page 59 Leaking fuel is a fire hazard. Disconnect the fuel line if the engine will be tilted for more than a few minutes. Otherwise, fuel may leak. (If the fuel connector is provid- ed on the motor.) EMG63210 PROCEDURE FOR TILTING UP Power trim and tilt model 1) Remove the fuel-line connection from the motor.

  • Page 60: Cruising In Other Conditions

    3) Turn the tilt-support lever toward engine bracket support engine. After tilting the engine, be sure to sup- port it with the tilt-support lever. Other- wise, the engine could fall back down suddenly if oil in the power trim and tilt unit should lose pressure.

  • Page 61: Maintenance

    EMK00010 Chapter 4 MAINTENANCE SPECIFICATIONS ........4-1 TRANSPORTING AND STORING OUTBOARD MOTOR .......4-3 Trailering outboard motor....4-3 Storing outboard motor ......4-4 PERIODIC MAINTENANCE......4-9 Replacement parts .......4-9 Maintenance chart......4-10 Greasing ..........4-11 Cleaning and adjusting spark plug...4-12 Checking top cowling ......4-13 Checking fuel system......4-14 Cleaning fuel filter ......4-15 Inspecting idling speed......4-16 Checking water in engine oil tank ..4-17...

  • Page 62: Specifications

    EMK10011* SPECIFICATIONS Model Unit 40TRC Item DIMENSIONS 8Overall Length mm (in.) 646 (25.4) 8Overall Width mm (in.) 360 (14.2) 8Overall Height mm (in.) 1,319 (51.9) 8Transom height mm (in.) 533 (21.0) 8Weight* kg (lb.) 86 (190) PERFORMANCE 8Full throttle operating range r/min 4,500–5,500 8Maximum output...
  • Page 63 50TRC — — 670 (26.4) 360 (14.2) 1,319 (51.9) 533 (21.0) 86 (190) 4,500–5,500 36.8 (50) at 5,000 r/min 750–850 2-stroke, L 698 (42.6) 67.0 × 66.0 (2.6 × 2.6) C.D.I system B8HS-10 0.9–1.0 (0.035–0.039) Remote control Electric start 12-6 Prime start system Forward-Neutral-Reverse 1.85 (24/13)

  • Page 64: 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 65 “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...
  • Page 66 EMK22511 Flushing Cooling System and Fogging Engine Cooling system flushing is essential to prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fog- ging of the engine is mandatory to pre- vent expensive engine damage due to rust.
  • Page 67 2) Install a flushing attachment to the lower unit. (Flushing attachment available from your Yamaha dealer). Avoid running the outboard at high speed while on the flushing attachment, or overheating could occur. 605014 8 Do not touch or remove electrical parts when starting or during operation.
  • Page 68 EMK26112 Lubrication 1) Remove the spark plugs, and spray a 10 second spray of “Yamaha Stor- Rite Engine Fogging Oil” into each cylinder. Grease spark plug threads and reinstall the spark plugs and torque to proper specification. (Refer to “CLEANING AND ADJUST- ING SPARK PLUG”.)
  • Page 69 EMK29010 Battery Care Battery electrolyte is poisonous and dan- gerous, causing severe burns, etc. It con- tains sulfuric acid. Avoid contact with skin, eyes, or clothing. Antidote: EXTERNAL; Flush with water. INTERNAL; Drink large quantities of water or milk. Follow with milk of mag- nesia, beaten egg, or vegetable oil.

  • Page 70: Periodic Maintenance

    Be sure to turn off the engine when you perform maintenance unless otherwise specified. If the owner is not familiar with machine servicing, this work should be done by a Yamaha dealer or other quali- fied mechanic. Maintenance, replacement, or repair of the emission control devices and systems may be performed by any marine engine repair establishment or individual.

  • Page 71: Maintenance Chart

    Refer to the sections in this chapter for explanations of each owner-specific action. The mark (G) 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...

  • Page 72: Greasing

    EMU00366 GREASING Yamaha marine grease (Water resistant grease) 4-11...

  • 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: Checking Top Cowling

    1 Spark plug gap 2 Spark plug I.D. mark (NGK) 903022 EMU16350 CHECKING TOP COWLING Check the fitting of the top cowling by pushing it with both hands. If the fitting is loose have it repaired by a Yamaha dealer. 4-13...

  • Page 75: Checking Fuel System

    EMK38010 CHECKING FUEL SYSTEM Gasoline (petrol) and its vapors are highly flammable and explosive. 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 Yama- ha dealer or other qualified mechanic.

  • Page 76: Cleaning Fuel Filter

    3 to make sure they are in good con- dition. Replace them if necessary. If any water is found in the fuel, the Yamaha portable fuel tank or other fuel tanks should be checked and cleaned. 4) Reinstall the filter element in the cup.

  • Page 77: Inspecting Idling Speed

    5) Attach the filter assembly to the bracket so that the fuel hoses are attached to the filter assembly. 6) Run the engine and check the filter and lines for leaks. EMU09912 INSPECTING IDLING SPEED 8 Do not touch or remove electrical parts when starting or during operation.

  • Page 78: Checking Water In Engine Oil Tank

    A translucent water drain hose is connect- ed from the bottom of the oil tank to the filler neck. If water or foreign matter col- lects in this hose, consult a Yamaha deal- 213012 1 Drain hose 2 Filler neck side...

  • Page 79: Replacing Fuse

    This could cause electrical system damage and a fire hazard. NOTE: If the new fuse blows again immediately, consult a Yamaha dealer. 1 Fuse holder 2 Fuse (20A) 205015* EMK78010 CHECKING WIRING AND...

  • Page 80: Checking Power Trim And Tilt System

    5) Operate the motor to trim and tilt down. Check that the trim and tilt rod operates smoothly. NOTE: If any operation is abnormal, consult a Yamaha dealer. Recommended fluid; Yamaha power trim & tilt fluid or ATF (DEXRON- 4-19...

  • Page 81: Checking Propeller

    EML08011* CHECKING PROPELLER You could be seriously injured if the engine accidentally starts while you are near the propeller. 8 Before inspecting, removing installing the propeller, remove the 210012 spark plug caps from the spark plugs. Also, put the shift control in Neutral, put the main switch in the “OFF”...
  • Page 82 2 Propeller 3 Spacer 4 Washer 5 Propeller nut 6 Cotter pin Installation 1) Apply Yamaha Marine grease (water- resistant grease) to the propeller- 602041 shaft. 2) Slide the propeller over the propeller- shaft. Be sure to install the thrust washer...

  • Page 83: Changing Gear Oil

    Inspect the used oil after it has been drained. If the oil is milky, water is get- 000565 ting into the gear-case which can cause gear damage. Consult a Yamaha dealer for repair of the lower unit seals. NOTE: For disposal of used oil consult your Yamaha dealer.

  • Page 84: Cleaning Fuel Tank

    Gasoline (petrol) is highly flammable, and its vapors are flammable and explosive. 8 If you have any question about properly 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 85: Inspecting And Replacing Anode(S)

    Yamaha outboard motors are protected from corrosion by sacrificial anodes. Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a Yamaha dealer for replacement of external anodes. 604012 Do not paint anodes, as this would ren- der them ineffective.

  • Page 86: Checking Battery

    EMU04041 CHECKING BATTERY (for Electric start models) Battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poi- sonous and highly caustic. Always follow these preventive mea- sures: 8 Avoid bodily contact with electrolytic fluid as it can cause severe burns or permanent eye injury.
  • Page 87 3) If the battery will be stored for longer than a month, check the specific grav- ity of the fluid at least once a month and recharge the battery when it is low. NOTE: Consult a Yamaha dealer when charging or re-charging batteries. 4-26...
  • Page 88 EMU01279 Connecting the Battery Mount the battery holder securely in a dry, well-ventilated, vibration-free loca- tion in the boat. Install a fully charged battery in the holder. 8 Make sure the main switch (on applica- ble models) is “OFF” before working on the battery.

  • Page 89: 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. EML44010 COATING THE BOAT BOTTOM A clean hull improves boat performance.
  • Page 90 -MEMO-...

  • Page 91: Trouble Recovery

    EMN00010 Chapter 5 TROUBLE RECOVERY TROUBLESHOOTING ......5-1 TEMPORARY ACTION IN EMERGENCY ..........5-5 Impact damage........5-5 Power trim/tilt will not operate ...5-5 Starter will not operate ......5-6 Engine fails to operate ......5-8 Treatment of submerged motor..5-10...

  • Page 92: 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 93 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. Warning system activated. 6. Find and correct cause of warning. 7. Spark plug gap incorrect.
  • Page 94 5. Engine oil contaminated or 5. Replace oil with fresh, specified sounds or deteriorated. type. indicator lamp 6. Oil filter clogged. 6. Have serviced by a Yamaha lights. dealer. 7. Oil feed/injection pump 7. Have serviced by a Yamaha malfunctions. dealer.
  • Page 95 13. Check wires for wear or breaks. ignition wiring. Tighten all loose connections. Replace worn or broken wires. 14. Failed ignition parts. 14. Have serviced by a Yamaha dealer. 15. Specified engine oil not used. 15. Check and replace oil with specified type.

  • Page 96: Temporary Action In Emergency

    607011 3) Whether damage is found or not, return to the nearest harbor slowly and carefully. 4) Have a Yamaha dealer inspect the outboard motor before operating it again. EMG65110 POWER TRIM / TILT WILL NOT...

  • Page 97: Starter Will Not Operate

    EMN30310 STARTER WILL NOT OPERATE If the starter mechanism does not operate (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 98 Procedure 1) Remove the top cowling. 2) Remove the starter/flywheel cover by removing the bolts. NOTE: On a model equipped with the start-in- gear protection device (cable), disconnect the cable from the starter. 208026 3) Prepare the engine for starting. See “STARTING ENGINE”...

  • Page 99: Engine Fails To Operate

    EMN32411 ENGINE FAILS TO OPERATE Cold engine fails to start (for Prime start model) If a cold engine fails to start, use the fol- lowing procedure. 1) Adjust the trim angle so that the drive shaft is at right angles to the water surface or is trimmed in.
  • Page 100 5) Set the MAIN SWITCH to “ON”. 6) Set the MAIN SWITCH to “START”. NOTE: START When the starter mechanism malfunctions, refer to “STARTER WILL NOT OPERATE”. 8 Do not turn the main switch to 701022 “START”when the engine is running. 8 Do not keep the starter-motor turning for more than 5 seconds with the main switch in the “START”...

  • Page 101: Treatment Of Submerged Motor

    107013 starter or emergency starter rope. 5) Take the outboard motor to a Yamaha dealer as soon as possible. Do not attempt to run the motor until it has been completely inspected.
  • Page 102 -MEMO-...

  • Page 103: Index

    EMP00010 Chapter 6 INDEX INDEX............6-1...
  • Page 104 EMP10010 Engine oil ..........1-11 INDEX Engine stop lanyard switch.....2-6 Exhaust leakage ........4-18 Adjusting trim angle......3-19 Filling fuel ..........3-4 Air vent screw...........2-2 Filling fuel tank .........4-4 Filling fuel and engine oil......3-4 Basic boating rules ........1-6 Filling oil............3-5 Battery care..........4-8 Flushing cooling system and fogging Battery requirement ......1-12 engine............4-5 Breaking in engine .........3-10...
  • Page 105 Tilting up/down ........3-21 Neutral interlock trigger ......2-4 Top cowling lock lever ......2-13 Neutral throttle lever .......2-4 Trailering outboard motor ......4-3 Transporting and storing outboard Oil level indicator......2-11, 3-7 motor............4-3 Oil level warning/oil filter clogging Treatment of submerged motor ..5-10 warning ...........2-15 Trim angle settings and boat Operation after a long period of handling ..........3-20...
  • Page 106 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 107 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 108 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 109 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 110 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 111 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 112 Printed in Japan April 2003-0.5 × 1 ! 63B-28199-1B (40VETO, 50HETO) Printed on recycled paper...
  • Page 113 (A l’usage du concessionnaire) MODÉLE ET NO. DE SÉRIE DU MOTEUR HORS-BORD (sur l’étiquette d’identification de la presse de fixation) YAMAHA DEALER NUMBER NO. DU CONCESSIONNAIRE YAMAHA DEALER NAME YAMAHA MOTOR CO., LTD. NOM DU MADE IN JAPAN CONCESSIONNAIRE PAYS D'ORIGINE JAPON USAGE...
  • Page 114 PLACE POSTAGE HERE ATTN: WARRANTY DEPARTMENT...

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