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Yamaha F250 LF250 Owner's Manual

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   Summary of Contents for Yamaha F250 LF250

  • Page 1

    OWNER’S MANUAL F250 LF250 U.S.A.Edition LIT-18626-06-80 6P2-28199-12...

  • Page 2

    ZMU01690 Read this owner’s manual carefully before operating your outboard motor.

  • Page 3: To The Owner

    EMU31280 To the owner Thank you for choosing a Yamaha outboard motor. This Owner’s Manual contains infor- mation needed for proper operation, mainte- nance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new Yamaha.

  • Page 4: Table Of Contents

    General information ... 1 Identification numbers record ... 1 Outboard motor serial number ... 1 Key number ... 1 Emission control information ... 1 North American models... 1 Star labels ... 2 Safety information ... 3 Important labels... 4 Warning labels... 4 Basic boating rules (Rules of the road) ...

  • Page 5: Table Of Contents

    Table of contents Operating engine... 31 Feeding fuel... 31 Starting engine ... 31 Warming up engine ... 33 Manual start and electric start models ... 33 Shifting ... 34 Forward (tiller handle and remote control models) ... 34 Reverse (automatic reverse lock and power trim and tilt models) ...

  • Page 6

    Consumer information... 70 Important warranty information for U.S.A. and Canada ... 70 YAMAHA MOTOR CORPORATION, U.S.A. FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY ... 72 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA ... 74 Table of contents...

  • Page 7: General Information, Identification Numbers Record, Outboard Motor Serial Number, Key Number, Emission Control Information

    Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto- len. 1. Outboard motor serial number location...

  • Page 8: Star Labels

    EMU25262 Manufactured date label This label is attached to the clamp bracket or the swivel bracket. 1. Manufactured date label location Manufactured: EMU25272 Star labels Your outboard motor is labeled with a Califor- nia Air Resources Board (CARB) star label. See below for a description of your particular label.

  • Page 9: Safety Information

    General information EMU25300 Three Stars—Ultra Low Emission The three-star label identifies engines that meet the Air Resources Board’s 2008 ex- haust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines. EMU25362 Safety information Before mounting or operating the outboard motor, read this entire manual.

  • Page 10: Important Labels, Warning Labels

    If necessary, verify the necessary replacement proce- dure with the dealer. Never illegally discard (dump) the product. Yamaha recommends consulting the deal- er on discarding the product. Be informed about boating safety. Additional publications and information can be obtained...

  • Page 11: Steering And Sailing Rules And Sound Signals, Rules When Encountering Vessels

    General information EMU25413 Label (counter rotation models) EWM01281 WARNING Use only a counterclockwise rotation pro- peller with this engine. Counterclockwise propellers are marked with a letter “L” after the size indication. The wrong type of propeller could cause the boat to go in an unexpected direction, which could lead to an accident.

  • Page 12: Other Special Situations

    Crossing: (you are traveling across the other vessel’s path) Overtaking: (you are passing or being passed by another vessel) In the following illustration, your boat is in the center. You should give the right-of-way to any vessels shown in white area (you are the Give-Way vessel).

  • Page 13

    General information vessels, the operator should sound a pro- longed blast on the whistle (4 to 6 seconds). If another vessel is around the bend, it too should sound the whistle. Even if no reply is heard, however, the vessel should still pro- ceed around the bend with caution.

  • Page 14: Fueling Instructions

    EMU25540 Fueling instructions EWM00010 WARNING GASOLINE AND ITS VAPORS ARE HIGH- LY FLAMMABLE AND EXPLOSIVE! General information ZMU01708 Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. Stop engine before refueling. Refuel in a well-ventilated area. Refuel portable fuel tanks off the boat.

  • Page 15: Gasoline, Engine Oil

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

  • Page 16: Battery Requirement, Battery Specifications, Propeller Selection

    Yamaha outboard motors are fitted with pro- pellers chosen to perform well over a range of applications, but there may be uses where a propeller with a different pitch would be more appropriate.

  • Page 17: Start-in-gear Protection

    For instructions on propeller removal and in- stallation, see page 57. EMU25770 Start-in-gear protection Yamaha outboard motors or Yamaha-ap- proved remote control units are equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is in neutral.

  • Page 18: Basic Components, Main Components, Remote Control

    EMU25796 NOTE: * May not be exactly as shown; also may not be included as standard equipment on all models. 1. Top cowling 2. Anti-cavitation plate 3. Trim tab (anode) 4. Propeller* 5. Cooling water inlet 6. Clamp bracket 7. Top cowling lock lever(s) 8.

  • Page 19: Remote Control Lever, Neutral Interlock Trigger, Neutral Throttle Lever

    Basic components 2. Remote control lever 3. Neutral interlock trigger 4. Neutral throttle lever 5. Main switch / choke switch 6. Engine stop lanyard switch 7. Throttle friction adjuster 1. Remote control lever 2. Power trim and tilt switch 3. Free accelerator 4.

  • Page 20: Free Accelerator, Throttle Friction Adjuster

    NOTE: The neutral throttle lever will operate only when the remote control lever is in neutral. The remote control lever will operate only when the neutral throttle lever is in the closed position. 1. Fully open 2. Fully closed EMU26232 Free accelerator To open the throttle without shifting into either forward or reverse, push the free accelerator...

  • Page 21: Engine Stop Lanyard Switch, Main Switch

    Basic components When constant speed is desired, tighten the adjuster to maintain the desired throttle set- ting. EMU25990 Engine stop lanyard switch The lock plate 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.

  • Page 22: Power Trim And Tilt Switch On Remote Control Or Tiller Handle

    With the main switch in the “ sition, the starter motor turns to start the en- gine. When the key is released, it returns automatically to the “ ” (on) position. START EMU26141 Power trim and tilt switch on remote control or tiller handle The power trim and tilt system adjusts the out- board motor angle in relation to the transom.

  • Page 23: Trim Tab With Anode

    Basic components NOTE: For instructions on using the power trim and tilt switch, see page 37. EMU26161 Power trim and tilt switches (twin binnacle type) The power trim and tilt system adjusts the out- board motor angle in relation to the transom. Pushing the switch “...

  • Page 24: And Tilt Or Hydro Tilt Model, Flushing Device

    EMU26340 Tilt support lever for power trim and tilt or hydro tilt model To keep the outboard motor in the tilted up po- sition, lock the tilt support lever to the clamp bracket. EMU26382 Top cowling lock lever (pull up type) To remove the engine top cowling, pull up the lock lever(s) and lift off the cowling.

  • Page 25: Digital Tachometer, Low Oil Pressure Warning Indicator

    Basic components EMU26491 Digital tachometer The tachometer shows the engine speed and has the following functions. NOTE: All segments of the display will light momen- tarily after the main switch is turned on and will return to normal thereafter. 1. Tachometer 2.

  • Page 26: Speedometer (digital Type), Trim Meter (digital Type)

    EMU26600 Speedometer (digital type) This gauge shows the boat speed. 1. Speedometer 2. Fuel gauge 3. Trip meter/clock/voltmeter 4. Warning indicator(s) NOTE: After the main switch is first turned on, all seg- ments of the display come on as a test. After a few seconds, the gauge will change to nor- mal operation.

  • Page 27: Hour Meter (digital Type), Trip Meter, Clock

    Basic components EMU26650 Hour meter (digital type) This meter shows the number of hours the en- gine 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.

  • Page 28: Fuel Gauge, Fuel Warning Indicator, Low Battery Voltage Warning Indicator

    When all segments are showing, the fuel tank is full. ECM00860 CAUTION: The Yamaha fuel tank sensor differs from conventional sensors. Incorrectly setting the selector switch on the gauge will give false readings. Consult your Yamaha deal- er on how to correctly set the selector switch.

  • Page 29: Fuel Management Meter, Fuel Flow Meter

    Basic components EMU26740 Fuel management meter The fuel management meter shows the state of the fuel consumption while the engine is running. 1. Fuel flow meter 2. Fuel consumption meter / Fuel economy meter / Twin engine speed synchronizer 3. Water separator warning indicator (operates only if the sensor has been installed) NOTE: After the main switch is first turned on, all seg-...

  • Page 30: Fuel Consumption Meter, Fuel Economy, Twin-engine Speed Synchronizer

    (winter or summer fuel and amount of addi- tives). The Yamaha digital speedometer and fuel management meter calculates speed, miles traveled, and fuel economy by water movement at the stern of the boat. This dis-...

  • Page 31: Water Separator Warning Indicator, Warning System

    Warning system ECM00090 CAUTION: Do not continue to operate the engine if a warning device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. ZMU01754 EMU26823 Overheat warning (twin engines) This engine has an overheat warning device.

  • Page 32: Low Oil Pressure Warning

    Check the oil level and add oil as needed. If the oil level is correct and the warning device does not switch off, consult your Yamaha dealer. ZMU01828 START START...

  • Page 33

    Basic components ECM00100 CAUTION: Do not continue to run the engine if the low oil pressure warning indicator is on. Serious engine damage could occur.

  • Page 34: Operation, Installation, Mounting The Outboard Motor

    EMU26901 Installation ECM00110 CAUTION: Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or 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 35: Breaking In Engine, Procedure For 4-stroke Models

    Test runs at different heights can help determine the optimum mounting height. Consult your Yamaha dealer or boat manufacturer for further information on determining the prop- er mounting height. For instructions on setting the trim angle of the outboard motor, see page 35.

  • Page 36: Preoperation Checks, Fuel, Controls, Engine, Checking The Engine Oil Level, Filling Fuel

    Make sure there are no fuel leaks or gaso- line fumes. Check fuel line connections to be sure they are tight (if equipped Yamaha fuel tank or boat tank). Be sure the fuel tank is positioned on a se- cure, flat surface, and that the fuel line is not...

  • Page 37: Ring Free Fuel Additive, Operating Engine, Feeding Fuel, Starting Engine

    Performance drops and engine wear increases dramatical- While many additives available may reduce deposits, Yamaha recommends the use of Ring Free Fuel Additive, available from your Yamaha dealer. Ring Free Fuel Additive has repeatedly proven its ability to clean com-...

  • Page 38

    NOTE: The start-in-gear protection device prevents the engine from starting except when in neu- tral. Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg. Then install the lock plate on the other end of the lanyard into the en- gine stop switch.

  • Page 39: Warming Up Engine, Manual Start And Electric Start Models

    Otherwise serious en- gine damage could occur. Check the oil level and add oil if necessary. Consult your Yamaha dealer if the cause for the low oil pressure warning indicator can- not be found. A continuous flow of water from the pilot...

  • Page 40: Shifting, Forward (tiller Handle And Remote Control Models)

    Consult your Yamaha dealer if the problem cannot be located and corrected. If the cooling passage is frozen, it may take awhile for water to start flowing out of the pilot hole. EMU27740 Shifting EWM00180 WARNING Before shifting, make sure there are no swimmers or obstacles in the water near you.

  • Page 41: Stopping Engine, Procedure, Trimming Outboard Motor

    Operation Remote control models Pull up the neutral interlock trigger (if equipped) and move the remote control lever quickly and firmly from neutral to reverse. EMU27820 Stopping engine Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stop- ping the engine immediately after operating at high speed is not recommended.

  • Page 42: Adjusting Trim Angle

    engine, and propeller. Correct trim is also af- fected by variables such as the load in the boat, sea conditions, and running speed. EWM00740 WARNING Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make steer- ing the boat more difficult.

  • Page 43: Adjusting Boat Trim, Tilting Up And Down

    Operation EMU27911 Adjusting boat trim When the boat is on plane, a bow-up attitude results in less drag, greater stability and effi- ciency. This is generally when the keel line of the boat is up about 3 to 5 degrees. With the bow up, the boat may have a greater tenden- cy to steer to one side or the other.

  • Page 44: Procedure For Tilting Up

    connect the fuel line if the outboard mo- tor is equipped with a fuel joint. Otherwise fuel may leak. ECM00990 CAUTION: Before tilting the outboard motor, follow the procedure under “Stopping engine” in this chapter. Never tilt the outboard motor while the engine is running. Se- vere damage from overheating can re- sult.

  • Page 45: Procedure For Tilting Down

    Operation EWM00260 WARNING After tilting the outboard motor, be sure to support it with the tilt support knob or tilt support lever. Otherwise the outboard mo- tor could fall back down suddenly if oil in the power trim and tilt unit loses pressure. Models equipped with trim rods: Once the outboard motor is supported with the tilt support lever, press the power trim and...

  • Page 46: Cruising In Shallow Water, Power Trim And Tilt Models Power Tilt Models

    EMU28060 Cruising in shallow water The outboard motor can be tilted up partially to allow operation in shallow water. EMU30710 Power trim and tilt models / power tilt models The outboard motor can be tilted up partially to allow operation in shallow water. EWM00660 WARNING Place the gear shift in neutral before set-...

  • Page 47: Cruising In Other Conditions

    For cooling system flushing instructions, see page 43. Cruising in turbid water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (not available for some models) if you use the outboard motor in turbid (muddy) water condi-...

  • Page 48: Maintenance, Specifications

    EMU28217 Specifications Dimension: Overall length: 892 mm (35.1 in) Overall width: 634 mm (25.0 in) Overall height X: 1829 mm (72.0 in) Overall height U: 1956 mm (77.0 in) Transom height X: 643 mm (25.3 in) Transom height U: 770 mm (30.3 in) Weight (without propeller) X: 274.0 kg (604 lb) Weight (without propeller) U:...

  • Page 49: Transporting And Storing Outboard Motor, Storing Outboard Motor

    It is advisable to have your outboard motor ser- viced by an authorized Yamaha dealer prior to storage. However, you, the owner, with a min- imum of tools, can perform the following pro- cedures.

  • Page 50: Procedure

    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 51: Cleaning And Anticorrosion Measures, Battery Care

    Spray the outboard motor exterior with “Yamaha Silicone Protectant” (Part No. LUB-SILCNE-13-00). Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax” (Part No. ACC-11000-15-02). EMU28430 Battery care EWM00330 WARNING Battery electrolytic fluid is dangerous;...

  • Page 52: Flushing Power Unit

    Batteries vary among manufacturers. There- fore the following procedures may not always apply. Consult your battery manufacturer’s in- structions. Procedure Disconnect and remove the battery from the boat. Always disconnect the black negative cable first to prevent the risk of shorting.

  • Page 53: Cleaning The Outboard Motor, Checking Painted Surface Of Motor, Periodic Maintenance, Replacement Parts

    If you or the owner is not famil- iar with machine servicing, this work should be done by your Yamaha dealer or other qualified mechanic. Maintenance, replacement, or repair of the emission control devices and systems may be performed by any marine engine repair establishment or individual.

  • Page 54: Maintenance Chart

    When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer. Item Inspection / replace- Anode(s) (external) ment...

  • Page 55: Maintenance Chart (additional)

    Maintenance Item Throttle link / throttle cable / throttle pick-up Inspection / adjustment timing Inspection / replace- Water pump ment Engine oil Inspection / change Oil filter (cartridge) Change Cleaning / adjustment / Spark plug(s) replacement Inspection / replace- Timing belt ment EMU28874 Maintenance chart (additional)

  • Page 56: Greasing

    Maintenance EMU28931 Greasing Yamaha marine grease (Water resistant grease)

  • Page 57: Cleaning And Adjusting Spark Plug

    Do not attempt to di- agnose 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 58: Checking Fuel System

    Improper repairs can make the outboard unsafe to operate. Check the fuel lines for leaks, crack, or mal- function. If a problem is found, your Yamaha dealer or other qualified mechanic should re- pair it immediately. Checkpoints...

  • Page 59: Inspecting Fuel Filter, Cleaning Fuel Filter

    O-ring to make sure they are in good condition. Replace them if neces- sary. If any water is found in the fuel, the Yamaha portable fuel tank or other fuel tanks should be checked and cleaned. Reinstall the filter element in the cup.

  • Page 60: Changing Engine Oil

    EMU29084 Changing engine oil EWM00760 WARNING Avoid draining the engine oil immediate- ly after stopping the engine. The oil is hot and should be handled with care to avoid burns. Be sure the outboard motor is securely fastened to the transom or a stable stand.

  • Page 61

    Con- tinued operation with a problem could cause severe engine damage. Consult your Yamaha dealer if the problem cannot be located and corrected. Turn off the engine and wait 3 minutes. Recheck the oil level using the dipstick to be sure the level falls between the upper and lower marks.

  • Page 62: Checking Wiring And Connectors, Exhaust Leakage, Water Leakage, Engine Oil Leakage

    EMU29140 Engine oil leakage Check for oil leaks on the around the engine. Maintenance NOTE: If any leaks are found, consult your Yamaha dealer. EMU29153 Checking power trim and tilt system EWM00430 WARNING Never get under the lower unit while it is tilted, even when the tilt support lever is locked.

  • Page 63: Checking Propeller

    Activate the trim-up switch until the tilt rod is fully extended. Unlock the tilt support lever. Tilt the outboard motor down. Check that the tilt rod and trim rods operate smooth- NOTE: Consult your Yamaha dealer if any operation is abnormal. EMU29171 Checking propeller EWM00321 WARNING...

  • Page 64: Installing The Propeller, Removing The Propeller

    Check the splines / shear pin for wear or damage. Check for fish line tangled around the pro- peller shaft. Check the propeller shaft oil seal for dam- age. NOTE: If the shear pin equipped: it is designed to break if the propeller hits a hard underwater obstacle to help protect the propeller and drive mechanism.

  • Page 65: Changing Gear Oil

    Consult a Yamaha dealer for re- pair of the lower unit seals. NOTE: For disposal of used oil consult your Yamaha dealer. With the outboard motor in a vertical po- sition, and using a flexible or pressurized filling device, inject the gear oil into the gear oil drain screw hole.

  • Page 66: Inspecting And Replacing Anode(s), Checking Battery

    Do not paint anodes, as this would render them ineffective. NOTE: Inspect ground leads attached to external an- odes on equipped models. Consult a Yamaha dealer for inspection and replacement of inter- nal anodes attached to the power unit. Maintenance...

  • Page 67: Connecting The Battery

    If the battery will be stored for longer than a month, check the specific gravity 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. EMU30730 Connecting the battery EWM00570...

  • Page 68: Disconnecting The Battery, Checking Top Cowling

    5. Large black lead 6. Negative connecting cable 7. Power for accessories NOTE: If connecting an accessory battery, consult your Yamaha dealer about correct wiring. EMU29370 Disconnecting the battery Disconnect the BLACK cable from the NEGA- TIVE (-) terminal first. Then disconnect the RED cable from the POSITIVE (+) terminal.

  • Page 69: Coating The Boat Bottom

    Maintenance EMU29400 Coating the boat bottom A clean hull improves boat performance. The boat bottom should be kept as clean of marine growth as possible. If necessary, the boat bot- tom can be coated with an anti-fouling paint approved for your area to inhibit marine growth.

  • Page 70: Trouble Recovery, Troubleshooting

    A. Check for cause of electric overload and repair. Replace fuse with one of correct am- perage. Q. Are starter components faulty? A. Have serviced by a Yamaha dealer. Q. Is shift lever in gear? A. Shift to neutral. Engine will not start (starter operates).

  • Page 71

    Q. Is fuel filter clogged? A. Clean or replace filter. Q. Have ignition parts failed? A. Have serviced by a Yamaha dealer. Q. Has warning system activated? A. Find and correct cause of warning. Q. Is spark plug gap incorrect? A.

  • Page 72

    A. Distribute load to place boat on an even plane. Q. Is water pump or thermostat faulty? A. Have serviced by a Yamaha dealer. Q. Is there excess water in fuel filter cup? A. Drain filter cup. Engine power loss.

  • Page 73: Temporary Action In Emergency, Impact Damage, Running Single Engine

    A. Remove and clean propeller. Q. Is motor mounting bolt loose? A. Tighten bolt. Q. Is steering pivot loose or damaged? A. Tighten or have serviced by a Yamaha dealer. EMU29432 Temporary action in emergency EMU29440 Impact damage...

  • Page 74: Replacing Fuse

    This could cause electric system damage and a fire hazard. NOTE: Consult your Yamaha dealer if the new fuse immediately blows again. Trouble Recovery 1. Electrical cover 2. Fuse puller 3.

  • Page 75: Power Trim And Tilt / Power Tilt Will Not Operate, Treatment Of Submerged Motor, Procedure

    EMU29760 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immediate- If you cannot immediately take the outboard motor to a Yamaha dealer, follow the proce- dure below in order to minimize engine dam- age.

  • Page 76: Consumer Information, Important Warranty Information For U.s.a. And Canada

    Consumer information EMU29811 Important warranty information for U.S.A. and Canada...

  • Page 77

    Consumer information...

  • Page 78: Motor Three-year Limited Warranty


  • Page 79

    Consumer information...

  • Page 80: Your Yamaha Outside The Usa Or Canada


  • Page 81

    YAMAHA MOTOR CORPORATION, USA Printed in Japan May 2005–2.4 × 1 CR Printed on recycled paper...

This manual also for:

F250d, Lf250d, F250, Lf250

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