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Yamaha VX250A Owner's Manual

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VX250A
OWNER'S MANUAL
U.S.A.Edition
LIT-18626-04-65

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Summary of Contents for Yamaha VX250A

  • Page 1 VX250A OWNER’S MANUAL U.S.A.Edition LIT-18626-04-65...
  • Page 3 NOTE: Yamaha. If you have any question about the A NOTE provides key information to make operation or maintenance of your outboard procedures easier or clearer.

  • Page 4: Table Of Contents

    EMU00003 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

    EMU00004 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 (petrol).........1-11 Engine oil ...........1-11 BATTERY REQUIREMENT ....1-12 PROPELLER SELECTION ....1-12 START-IN-GEAR PROTECTION..1-14...

  • Page 6: Identification Numbers Record

    Record your outboard motor serial number 401012 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 EMU01443 CALIFORNIA AND OTHER STATES This engine conforms U.S. Environmental Protection Agency (EPA) 000599 and/or California Air Resources Board (CARB) regulations 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 cowling.

  • Page 8: Safety Information

    8 This product emits exhaust gases which EMU00917 SAFETY contain carbon monoxide, a colorless, odorless gas which may cause brain INFORMATION damage death when inhaled. Symptoms include nausea, dizziness, 8 Before mounting or operating the out- and drowsiness. Keep cockpit and cabin board motor, read this entire manual.
  • Page 9 8 Be informed about boating safety. Additional publications and information can be obtained from many organiza- tions, including the following: United States Coast Guard Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Affairs U.S. Coast Guard Headquarters Washington, D.C. 20593-0001 Boating Safety Hotline: 1-800-368-5647 National Marine Manufacturers Association (NMMA)

  • Page 10: Important Labels

    6A1-83625-41 000594 WARNING Hot surface under this cover during and after operation. To avoid burns, do not touch finned resistor with bare hands. YAMAHA 65L-83625-40 000577 OIL TANK CAPACITY:10.5 LITERS 11.1 U.S. qt. 9.2 IMP. qt. ENGINE OIL ONLY Pour the engine oil into this oil tank, not gasoline.

  • Page 11: Basic Boating Rules

    Stand-on vessel EMU00015 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 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 Steering Rules are followed: Meeting (you are approaching another ves- sel head-on) Crossing (you are traveling across the other vessel’s path)
  • Page 13 ven vessel has the right-of-way. way until you are clear of it. Likewise, if Sailing vessels should keep clear of another vessel is passing you, you should any fishing vessel. maintain your speed and direction so that the other vessel can steer itself around you. In a narrow channel, a sailing vessel OTHER SPECIAL SITUATIONS should not hamper the safe passage of...
  • Page 14 Remember, markings may vary by geo- graphic location. Always consult local boat- ing authorities before driving your boat in unfamiliar waters. MAIN CHANNEL BUOYS " 1 " " 3 " " 5 " " 7 " " 6 " LIGHTED BUOY (Port Hand)` C "...

  • Page 15: Fueling Instructions

    EMU01550 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 (Petrol)

    Gasohol containing ethanol can be used if ethanol content does not exceed 10% and the fuel meets minimum octane ratings. Gasohol containing methanol is not recommended by Yamaha because it can cause fuel system damage or engine per- formance problems. EMU00858...

  • Page 17: Battery Requirement

    EMU01551 BATTERY REQUIREMENT Do not use a battery that does not meet the specified capacity. If a battery which differs from the specification is used, the electrical system may perform poorly or be overloaded, causing electrical system damage. Choose a battery which meets the following specifications.
  • Page 18 Conversely, a larger-pitch propeller is more suitable for a smaller operating load. Yamaha dealers stock a range of pro- pellers, and can advise you and install a propeller on your outboard that is best suit- ed to your application.

  • Page 19: Start-In-Gear Protection

    EMU01209 START-IN-GEAR PROTECTION Yamaha outboard motors or Yamaha approved remote control units are equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is Neutral. Always select Neutral before starting the engine. 1-14...
  • Page 20 -MEMO-...

  • Page 21: Basic Components

    EMU00037 Chapter 2 BASIC COMPONENTS MAIN COMPONENTS......2-1 OPERATIONS OF CONTROLS AND OTHER FUNCTIONS ......2-2 Remote control........2-2 Trim tab ..........2-6 Power trim / tilt switch ......2-7 Digital tachometer ........2-8 Digital speedometer ......2-11 Tilt support lever.........2-14 Top cowling release lever ....2-14 Flushing device ........2-15 WARNING SYSTEM ......2-16 Overheat warning.......2-16 Oil level warning / Oil filter clogging...

  • Page 22: Main Components

    EMU01206 MAIN COMPONENTS YAMAHA SPEED Km/h knot mile TRIP TIME BATT mode 1 Top cowling w Fuel hose 2 Anti-cavitation plate e Battery cable 3 Trim tab (Anode) r Cooling water pilot hole 4 Propeller * t Remote control box (Side mount type)

  • Page 23: Operations Of Controls And Other Functions

    EMU00039 OPERATIONS OF CONTROLS AND OTHER FUNCTIONS EMU00096 REMOTE CONTROL Both the shifter and the throttle are actuated by the remote control lever. In addition, this 000200 control also has the electrical switches. 1 Remote control lever 2 Neutral interlock trigger 3 Neutral throttle lever 4 Main switch 5 Engine stop lanyard switch...
  • Page 24 EMU00099 Neutral Interlock Trigger To shift out of Neutral, the neutral interlock trigger of the remote control lever must first be pulled up. EMU00100 Neutral Throttle Lever To open the throttle without shifting into 000323 either Forward or Reverse, place the remote control lever in the Neutral position and lift the neutral throttle lever.
  • Page 25 EMU00934 Engine Stop Lanyard Switch The lock-plate 1 must be attached to the engine stop lanyard switch for the engine to run. The lanyard 2 should be attached to a secure place on the operator’s clothing, or arm or leg. Should the operator fall over- board or leave the helm, the lanyard will pull out the lock plate, stopping ignition to the engine.
  • 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”...

  • Page 27: Trim Tab

    EMU1552 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 28: Power Trim/Tilt Switch

    EMU01563 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 side of the bottom engine cowling. Pushing the switch “UP” trims the motor up, then tilts the motor up. Pressing the switch “DN”...

  • Page 29: 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 30 EMU01620 Hour Meter This meter shows the number of hours the engine has been run. It can be set to show the total number of hours or the number of hours for the current trip. The display can also be turned on and off. 8 Changing the display format Pressing the MODE button changes the 001087...
  • Page 31 EMU01553 Overheat Warning Indicator If the engine temperature rises too high, the warning indicator will start to blink. Refer to “OVERHEAT WARNING” for details. 1 Overheat warning indicator 001052 Do not continue to operate the engine if a warning device has activated. If neces- sary, refer to the “TROUBLESHOOTING”...

  • Page 32: Digital Speedometer

    EMU00140 DIGITAL SPEEDOMETER This meter contains the speedometer, fuel YAMAHA meter with warning, trip meter, clock and SPEED Km/h voltmeter with warning. knot mile 1 Speedometer TRIP TIME BATT 2 Fuel meter 3 Trip meter/clock/voltmeter mode 4 Warning indicator 000329...
  • Page 33 EMU01274 Trip Meter This meter displays the distance the boat YAMAHA has traveled since the meter was last reset. SPEED Km/h Repeatedly push and release the “mode” knot button until the indicator on the face of the mile meter points to “TRIP”. To reset the trip...
  • Page 34 BATT setting the selector switch on the meter 802032 will give false readings. Consult your Yamaha dealer on how to correctly set the selector switch. NOTE: The fuel reading can be affected by the position of the sensor in the fuel tank and the attitude of the boat in the water.

  • Page 35: Tilt Support Lever

    EMU00157 TILT SUPPORT LEVER To keep the outboard motor in the tilted-up position, lock the tilt support lever to the clamp bracket. 403033 EMU00164 TOP COWLING RELEASE LEVER The top cowling can be removed by operat- ing the cowling release lever. Pulling the front lever unlocks the top cowling for removal.

  • Page 36: Flushing Device

    When refitting the top cowling: 1) Set the top cowling straight down onto the engine, being careful to avoid catching spark plug leads or other wires. 2) Align the three cowling hooks with the locks on the bottom cowling. 3) Press down on the top of the cowling at the front and both sides of the back 000598 until the three locks click.

  • Page 37: Warning System

    EMU00169 WARNING SYSTEM Do not continue to operate the engine if warning device activated. Consult your Yamaha dealer if the prob- lem cannot be located and corrected. 001053 EMU01476¯ OVERHEAT WARNING This engine has an overheat warning device. If the engine temperature rises too high, the warning device will activate.

  • Page 38: Oil Level Warning / Oil Filter Clogging Warning

    EMU00172 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. ( 1 ); Included (—); N/A Warning device Tiller Remote 001054 activation control...

  • Page 39: Operation

    EMU00174 Chapter 3 OPERATION INSTALLATION ........3-1 Mounting the outboard motor ....3-2 BREAKING IN (RUNNING IN) ENGINE...........3-4 PRE-OPERATION CHECKS ....3-6 Operation after a long period of storage ..........3-8 FILLING FUEL AND ENGINE OIL..3-9 Filling fuel ..........3-9 Filling oil ..........3-10 STARTING ENGINE ......3-13 WARMING UP ENGINE......3-16 SHIFTING..........3-17 Forward ..........3-17...

  • Page 40: Installation

    EMU00175 INSTALLATION Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat or acces- sories 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 41: Mounting The Outboard Motor

    EMU01478 MOUNTING THE OUTBOARD MOTOR 8 Overpowering boat 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 manufacturer.
  • Page 42 Test runs different heights can help determine the optimum mounting height. For further details, consult your Yamaha dealer or boat manufacture to determine the proper mounting height. 8 Refer to the section “TRIMMING OUT- BOARD MOTOR” for instructions on set-...

  • Page 43: Breaking In (Running In) Engine

    EMU01547 BREAKING IN (RUNNING IN) ENGINE Your new engine requires a period of break- in (running-in) to allow mating surfaces of moving parts to wear-in evenly. Correct break-in (running-in) will help ensure proper performance and longer engine life. 8 Failure to follow the break-in (running- in) procedure may result in reduced engine life or even severe engine dam- age.
  • Page 44 5 minutes at a time. Let the engine cool between full-throttle runs. Vary engine speed occasionally. 5) After the first 10 hours: Operate the engine normally. Use straight gasoline (petrol) in the fuel tank; YAMAHA PRECISION BLEND SYSTEM provides proper lubri- cation for normal operation.

  • Page 45: Pre-Operation Checks

    EMU00204 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. Do not start the engine out of water. Overheating and serious engine damage can occur.
  • Page 46 EMU00209 Controls 8 Check throttle, shift, and steering for proper operation before starting the engine. 8 The controls should work smoothly, with- out binding or unusual free play. 8 Look for loose or damaged connections. 8 Check operation of the starter and stop switches when the outboard motor is in the water.

  • Page 47: Operation After A Long Period Of Storage

    3) Watch for oil flowing through the oil feed pipes. After any air in the oil lines has been expelled, the YAMAHA PRE- CISION BLEND SYSTEM should sup- ply oil normally. If no oil has begun flowing after 10 minutes of idling, con- sult your Yamaha dealer.

  • Page 48: Filling Fuel And Engine Oil

    While many additives available may reduce deposits, Yamaha recommends the use of Ring Free Fuel Additive, available from your Yamaha dealer. Ring Free has repeat- edly proven its ability to clean combustion deposits from inside the engine, notably the critical piston-ring-land area, and fuel sys- tem components.

  • Page 49: Filling Oil

    2) Turn the main switch to “ON” to feed oil automatically from the remote oil tank 701024 to the engine oil tank by the YAMAHA PRECISION BLEND SYSTEM. 3) After the engine oil tank has filled, turn the main switch to “OFF” to cancel the...
  • Page 50 When the engine is operated for the first time or stored for a period of time, a min- imum of 5 liters (5.3 US qt, 4.4 Imp qt) of oil should be kept in the remote oil tank. Otherwise, the oil-feed pump chamber will not be filled with oil, and no oil will be supplied.
  • Page 51 EMU01543 Oil Level Indicator The various oil level system functions are as follows: Oil level indi- Oil level indi- Engine oil Remote oil cator (Digital cator (Analog Remarks tank tank tachometer) tachometer) More than More than • No refilling necessary. 300 cm 1,500 cm Green...

  • Page 52: Starting Engine

    EMU01197 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...
  • Page 53 EMU00247 PROCEDURE FOR REMOTE CONTROL MODEL 4) Place the remote control lever in the Neutral position. NOTE: The start-in-gear protection device prevents the engine from starting except when in Neutral. 701015 5) Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg.
  • Page 54 EMU00949 Electric Start Model START 7) Turn the main switch to “START”, and hold it for a maximum of 5 seconds. 8) Immediately after the engine starts, release the main switch to return it to “ON”. 8 Do not turn the main switch to 000978 “START”...

  • Page 55: Warming Up Engine

    Overheating and serious dam- age could occur. Stop the engine and check to see if the water inlet on the 309013 lower casing is blocked. If the problem cannot be found and corrected, consult your Yamaha dealer. 3-16...

  • Page 56: Shifting

    EMU00261 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 57: Stopping Engine

    EMU00273 STOPPING ENGINE Let it cool off for a few minutes at idle or low speed first. Stopping the engine immediate- ly after operating at high speed is not rec- ommended. EMU01199 1) Turn the main switch to “OFF”. 2) If there is a fuel joint or a fuel cock on the boat, disconnect the fuel line or close the fuel cock after stopping the START...

  • Page 58: 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 econo- my while reducing strain on the engine. The correct trim angle depends upon the combi- nation of boat, engine, and propeller.

  • Page 59: 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 posi- tion for the first time.
  • Page 60 EMU01558 Bow Up 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. When trimmed out, the boat may have more tendency to steer to one side or the other.

  • Page 61: Tilting Up/Down

    EMU01200 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 colli- sion with obstructions, and also to reduce salt corrosion.
  • Page 62 EMU01548 PROCEDURE FOR TILTING UP Power trim/tilt models 1) If there is a fuel joint or a fuel cock on the boat, disconnect the fuel line or close the fuel cock. 2) Push the power trim/tilt switch “UP” until the outboard has tilted up com- pletely.

  • Page 63: Cruising In Other Conditions

    EMU00303 PROCEDURE FOR TILTING DOWN Power trim/tilt model 1) Push the power trim/tilt switch “UP” until the engine is supported by the tilt rod. 2) Release the tilt-support lever. 3) Push the power trim/tilt switch “DN” (Down) to lower the engine to the 411045 desired position.
  • Page 64 -MEMO-...

  • Page 65: Maintenance

    EMU00317 Chapter 4 MAINTENANCE SPECIFICATION DATA......4-1 TRANSPORTING AND STORING OUTBOARD MOTOR ......4-2 Trailering outboard motor.....4-2 Storing outboard motor ......4-3 PERIODIC MAINTENANCE....4-8 Replacement parts .......4-8 Maintenance chart........4-9 Greasing..........4-10 Cleaning and adjusting spark plug ..4-11 Checking fuel system ......4-13 Inspecting fuel filter ......4-14 Adjusting idling speed ......4-16 Checking water in engine oil tank ..4-17 Replacing fuse ........4-17...

  • Page 66: Specification Data

    L (US qt, Imp qt) 1.2 (1.3, 1.1) 10.5 (11.1, 9.2)/18.0 (19.1, 15.9) (remote oil tank) L (US qt, Imp qt) Lubrication YAMAHA PRECISION BLEND SYSTEM – Fuel/oil ratio 9 Recommended gearcase oil Hypoid gear oil (SAE90) (US oz, Imp oz) Gear oil quantity 1,150 (38.9, 40.5)

  • Page 67: Transporting And Storing Outboard Motor

    For further details, consult your Yamaha dealer. 001207 8 Never get under the lower unit while it is tilted, even if a motor support bar is used.
  • Page 68 It is advisable to have your outboard ser- viced by an authorized Yamaha dealer prior to storage. However, the following proce- dures can be performed by you, the owner, with a minimum of tools.
  • Page 69 2) Install a flushing attachment to the lower unit. (A flushing attachment is 903021 available from a Yamaha dealer). 3) Run the engine at a fast idle for 10-15 minutes while supplying water. 4) Just prior to turning off the engine,...
  • Page 70 EMU01567 Lubrication 1) Remove the spark plug(s). Spray “Yamaha Stor-Rite Engine Fogging Oil” into each cylinder for 5 seconds. Grease the spark plug threads and reinstall the spark plug(s) and torque to proper specification. (Refer to the sec- tion “CLEANING AND ADJUSTING SPARK PLUG”...
  • Page 71 Also, do not spray near the silencer and oxygen sensor cover or into the engine. Otherwise, the oxygen sen- sor for Electronic Fuel Injection system could be damaged. 3) Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax” (Part No. ACC-11000-15-02).
  • Page 72 EMU01545 Battery Care Battery electrolyte is poisonous and dangerous, causing severe burns, etc. It contains 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 magne- sia, beaten egg, or vegetable oil.

  • Page 73: Periodic Maintenance

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

  • Page 74: Maintenance Chart

    Frequency of maintenance operations may be adjusted according to the operating condi- tions, 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 75: Greasing

    EMU00366 GREASING Yamaha marine grease (Water resistant grease) 000596 4-10...

  • Page 76: Cleaning And Adjusting Spark Plug

    Do not attempt to diagnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You should periodical- ly remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.
  • Page 77 Spark plug gap: Refer to “SPECIFICATIONS”, page 4-1. When fitting the plug, always clean the gas- ket 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.

  • Page 78: Checking Fuel System

    Check the fuel line for leaks, cracks, or mal- functions. If any problem is found, it should be repaired immediately by Yamaha dealer or other qualified mechanic. Checkpoints 8 Fuel system parts leakage.

  • Page 79: Inspecting Fuel Filter

    8 If you have any question about proper- ly doing this procedure, consult your Yamaha dealer. 8 Do not perform this procedure on a hot or running engine. Allow the engine to cool.
  • Page 80 EMU01308 NOTE: If any water is in the fuel, the float 7 will rise. If so, remove the cup and drain the water. 1) Loosen and remove the locking tab bolt and tab 1. Slightly loosen the filter cup ring nut 2. 207051 2) Remove the filter cup 3, catching any spilled fuel in a rag.

  • Page 81: Adjusting Idling Speed

    Correct idling-speed adjustment is only pos- sible if the engine is fully warmed-up. If not warmed up fully, the speed setting will tend to be too high. If you have difficulty obtain- ing the specified idle, consult a Yamaha dealer or other qualified mechanic. 4-16...

  • Page 82: Checking Water In Engine Oil Tank

    CHECKING WATER IN ENGINE OIL TANK There is a trap at the bottom of the engine oil tank. If water or foreign matter is visible in this trap, consult a Yamaha dealer. 1 Trap 2 Engine oil tank 213021 EMU01567...

  • Page 83: Checking Wiring And Connectors

    EMU00383 CHECKING WIRING AND CONNECTORS 1) Check that each grounding wire is properly secured. 2) Check that each connector is engaged securely. EMU00384 EXHAUST LEAKAGE 000627 Start the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head and crank case.

  • Page 84: Checking Power Trim And Tilt System

    8) Operate the motor to tilt down. Check that the tilt rod and trim rods operate smoothly. NOTE: If any operation is abnormal, consult a Yamaha dealer. Recommended fluid: 411045 Yamaha power trim & tilt fluid or ATF (DEXRON- 4-19...

  • Page 85: Checking Propeller

    EMU00388 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 86 Otherwise, the propeller could come off during operation and be lost. 1) Apply Yamaha Marine grease Corrosion resistant grease to the pro- peller shaft. 2) Install the thrust washer and propeller on the propeller shaft. 3) Install the spacer and washer. Tighten the propeller nut to the specified torque.

  • Page 87: Changing Gear Oil

    Inspect the used oil after it has been drained. If the oil is milky, water is get- 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 88: Inspecting And Replacing Anode(S)

    7) Insert and tighten the oil drain plug. EMU01462 INSPECTING AND REPLACING ANODE(S) Yamaha outboard motors are protected from corrosion by sacrificial anodes. Check the anodes periodically. Remove scales from the surfaces of the anodes. For inspection and replacement of anodes, consult a Yamaha dealer.

  • Page 89: Checking Battery

    EMU00404 CHECKING BATTERY (for Electric start models) Battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poisonous and highly caustic. Always follow these preventive mea- 901015 sures: 8 Avoid bodily contact with electrolytic fluid as it can cause severe burns or permanent eye injury.
  • Page 90 8 A poorly maintained battery will quick- ly deteriorate. 8 Ordinary tap-water contains minerals harmful to a battery, and should not be used for topping-up. 1) Check the electrolyte level at least once a month. Fill to the manufacturer’s rec- ommended level when necessary.
  • Page 91 3 Large red lead for starting battery 4 Small red lead for accessory battery charging (optional part) 5 Large black lead 6 Negative connecting cable (optional part) NOTE: If a battery selector switch is desired, con- sult your YAMAHA dealer about correct wiring. 000360 4-26...

  • Page 92: Checking Bolts And Nuts

    EMU01280 Disconnecting the Battery Disconnect the BLACK lead from the NEGA- TIVE (-) terminal first. Then disconnect the RED lead from the POSITIVE (+) terminal. EMU00408 CHECKING BOLTS AND NUTS 1) Check that bolts securing the cylinder head and engine and the nut securing the flywheel are tightened with their specified tightening torque.

  • Page 93: Cleaning Cooling-Water Passages

    EMU01172 CLEANING COOLING-WATER PASSAGES Flushing device equipped model Perform this procedure right after operation for the most thorough flushing. 1) After shutting off the engine, unscrew the garden-hose connector 2 from the fitting 1 on the bottom cowling. 2) Screw the garden-hose connector 2 onto a garden hose 3 which is con- nected to a fresh-water supply.

  • Page 94: Motor Exterior

    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. A touch-up paint is available from a Yamaha dealer. EMU00413 COATING THE BOAT BOTTOM A clean hull improves boat performance.

  • Page 95: Trouble Recovery

    EMU00414 Chapter 5 TROUBLE RECOVERY TROUBLESHOOTING ......5-1 TEMPORARY ACTION IN EMERGENCY .........5-5 Impact damage ........5-5 Power tilt will not operate .....5-5 Starter will not operate ......5-6 Engine fails to operate ......5-8 Low oil level warning activates...5-10 Top cowling does not unlock....5-11 Treatment of submerged motor..5-12...

  • Page 96: 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 possible 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 97 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 98 6. Oil filter clogged. 6. Have serviced by a Yamaha dealer. 7. Oil feed/injection pump malfunctions. 7. Have serviced by a Yamaha dealer. 8. Load on boat improperly distributed. 8. Distribute load to place boat on an even plane.
  • Page 99 20. Inspect spark plug and replace it with recommended type. 1. Propeller damaged. 1. Have propeller repaired or replaced. 2. Propeller shaft damaged. 2. Have serviced by a Yamaha dealer. 3. Weeds or other foreign matter tangled 3. Remove and clean propeller. F. Engine vibrates on propeller.

  • Page 100: Temporary Action In Emergency

    607011 3) Whether damage is found or not, return to the nearest harbor slowly and care- fully. 4) Have a Yamaha dealer inspect the out- board motor before operating it again. EMU00419 POWER TILT WILL NOT OPERATE If the engine cannot be tilted up or down...

  • Page 101: Starter Will Not Operate

    EMU01561 STARTER WILL NOT OPERATE If the starter mechanism does not operate (engine cannot be cranked with the starter), the engine can be manually started with an emergency starter rope. However, the engine can not be manually started if the battery voltage is low. If the battery is discharged to 9 volts or below, the electrical fuel pump will not operate.
  • Page 102 EMU01309 Emergency Starting Engine 1) Remove the top cowling. 000595 2) Remove the flywheel cover. 3) Prepare the engine for starting. See “STARTING ENGINE” for procedures. Be sure the engine is in Neutral and that the lanyard is attached to the engine stop switch.

  • Page 103: Engine Fails To Operate

    EMU01562 ENGINE FAILS TO OPERATE If the engine speed becomes erratic or the engine stops unexpectedly, or if the engine does not start, the following emergency cir- cuit procedure may allow you to return to port for repairs. Before using this procedure, be sure to check the “TROUBLESHOOTING”...
  • Page 104 If the engine fails to start, use the following procedure. 1) Adjust the trim angle so that the engine is vertical or trimmed in. 000621 2) Disconnect the Yellow/White emer- gency connector to bypass the ignition timing advance circuit of the microcom- puter.

  • Page 105: Low Oil Level Warning Activates

    EMU01565 LOW OIL LEVEL WARNING ACTIVATES If the oil level is allowed to drop too low, the red segment will appear on the oil level indi- cator, the buzzer will sound, and engine speed will be limited to about 2,000 r/min. If this happens, a reserve amount of oil can be pumped from the remote oil tank 3 to 218014*...

  • Page 106: Top Cowling Does Not Unlock

    NOTE: 8 Reserve oil capacity is maximum 1,500 (1.6 US qt, 1.31 Imp qt). 8 The oil feed pump will not operate if the engine is tilted more than 35°. Put the engine in the down position before oper- ating the emergency switch. EMU00445 TOP COWLING DOES NOT UNLOCK If the top cowling stays locked when the...

  • Page 107: Treatment Of Submerged Motor

    If the outboard motor is submerged, imme- diately take it a Yamaha dealer. Otherwise, some corrosion may begin almost immedi- ately. If you cannot immediately take the outboard motor to a Yamaha dealer, follow the proce- 107012 dure below in order to minimize engine damage. EMU00449 1) Thoroughly wash away mud, salt, sea- weed, etc.
  • Page 108 -MEMO-...

  • Page 109: Index

    EMU00450 Chapter 6 INDEX INDEX............6-1...

  • Page 110: Engine

    EMU00451 Engine oil..........1-11 INDEX Engine stop lanyard switch......2-4 Exhaust leakage ........4-18 Adjusting idling speed......4-16 Filling fuel ..........3-9 Adjusting trim angle .......3-20 Filling fuel and engine oil ......3-9 Filling fuel tank.........4-3 Filling oil..........3-10 Basic boating rules ........1-6 Flushing cooling system Battery care ..........4-7 Battery requirement .......1-12 and fogging engine ........4-4 Bow down ..........3-21...
  • Page 111 Tilt support lever ........2-14 Tilting up/down ........3-22 Neutral interlock trigger ......2-3 Top cowling does not unlock ....5-11 Neutral throttle lever ........2-3 Top cowling release lever......2-14 Oil level indicator ......2-9, 3-12 Trailering outboard motor ......4-2 Oil level warning / Oil filter clogging Transporting and storing outboard warning ..........2-17 motor ............4-2...
  • Page 112 Warranty Registration card found inside the cover of the Owner's Manual. Mail it to the distribu- tor for the country in which you live (see step 6 for the correct address). If your Yamaha is not properly registered, a warranty repair could be unnecessarily delayed while registration records are checked.
  • Page 113 Yamaha needs warranty service while in Canada, or your Canadian purchased 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 114 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 115 Charges for removal of the motor from a boat and transporting the motor to and from an authorized Yamaha outboard dealer are excluded from warranty coverage.
  • Page 116 CUSTOMER SERVICE If your machine requires warranty service, you must take it to any authorized Yamaha outboard dealer within the continental United States. Be sure to bring your warranty registration identification or other valid proof of the original date of purchase. If a question or problem arises regard- ing warranty, first contact the owner of the dealership.
  • Page 117 Yamaha outside the U.S.A. or Canada, please contact an authorized 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 pur- chase, which is important evidence the repairing dealer will need to be sure your Yamaha is covered by warranty.
  • Page 118 Printed in Japan April 2001—0.5 × 1 ! 69L-28199-11 (250CETO) Printed on recycled paper...

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