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- Outboard Motor
- F250
- Owner's Manual
Yamaha F250 Owner's Manual
Summary of F250
Page 1
F250 lf250 owner’s manual lit-18626-07-16 6p2-28199-13 u.S.A.Edition.
Page 2
Zmu01690 read this owner’s manual carefully before operating your outboard motor. U6p213e0.Book page 1 thursday, march 9, 2006 10:20 am.
Page 3
Important manual information 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 ne...
Page 4: Table Of Contents
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...
Page 5: Table Of Contents
Table of contents operating engine........................... 37 priming fuel system .......................... 37 starting engine ................................. 37 warming up engine ....................... 39 electric start models ......................... 39 shifting ..............................
Page 6: Table Of Contents
Table of contents important warranty information if you use your yamaha outside the usa or canada ............. 80 u6p213e0.Book page 3 thursday, march 9, 2006 10:20 am.
Page 7: General Information
General information 1 emu25170 identification numbers record emu25183 outboard motor serial number the outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. Record your outboard motor serial number in the spaces provided to assist you in ordering spare ...
Page 8: General Information
General information 2 emu25262 manufactured date label this label is attached to the clamp bracket or the swivel bracket. 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. Emu25280 one ...
Page 9: General Information
General information 3 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 ● befo...
Page 10: General Information
General information 4 ● know the marine laws and regulations where you will be boating—and obey them. For basic boating rules, see “rules of the road” on page 5. ● stay informed about the weather. Check weather forecasts before boating. Avoid boating in hazardous weather. ● tell someone where you ar...
Page 11: General Information
General information 5 emu25413 label (counter rotation models) warning ewm01281 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 unexpect...
Page 12: General Information
General information 6 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 vess...
Page 13: General Information
General information 7 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. If you nav- igate s...
Page 14: General Information
General information 8 emu25540 fueling instructions warning ewm00010 gasoline and its vapors are high- ly flammable and explosive! ● 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. Refue...
Page 15: General Information
General information 9 ● take care not to spill gasoline. If gaso- line spills, wipe it up immediately with dry rags. ● do not overfill the fuel tank. ● tighten the filler cap securely after refu- eling. ● if you should swallow some gasoline, in- hale a lot of gasoline vapor, or get gaso- line in you...
Page 16: General Information
General information 10 emu25700 battery requirement caution: ecm01060 do not use a battery that does not meet the specified capacity. If a battery which does not meet specifications is used, the elec- tric system could perform poorly or be overloaded, causing electric system dam- age. For electric s...
Page 17: General Information
General information 11 for instructions on propeller removal and in- stallation, see page 61. 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 wh...
Page 18: Basic Components
Basic components 12 emu25799 main components 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. Water sepa...
Page 19: Basic Components
Basic components 13 emu26180 remote control the remote control lever actuates both the shifter and the throttle. The electrical switches are mounted on the remote control box. 1 4 6 3 2 5 zmu05429 1. Tachometer unit (square type)* 2. Tachometer unit (round type)* 3. Speedometer unit (square type)* 4...
Page 20: Basic Components
Basic components 14 emu26190 remote control lever moving the lever forward from the neutral po- sition engages forward gear. Pulling the lever back from neutral engages reverse. The en- gine will continue to run at idle until the lever is moved about 35° (a detent can be felt). Moving the lever fart...
Page 21: Basic Components
Basic components 15 matically to its set position. The remote con- trol will then engage forward and reverse normally. Emu25971 throttle friction adjuster a friction device provides adjustable resis- tance to movement of the throttle grip or the remote control lever, and can be set accord- ing to op...
Page 22: Basic Components
Basic components 16 emu26090 main switch the main switch controls the ignition system; its operation is described below. ● “ ” (off) with the main switch in the “ ” (off) posi- tion, the electrical circuits are off, and the key can be removed. ● “ ” (on) with the main switch in the “ ” (on) position...
Page 23: Basic Components
Basic components 17 emu26151 power trim and tilt switch on bottom engine cowling the power trim and tilt switch is located on the side of the bottom engine cowling. Pressing the switch “ ” (up) trims the outboard motor up, then tilts it up. Pressing the switch “ ” (down) tilts the outboard motor dow...
Page 24: Basic Components
Basic components 18 warning ewm00840 an improperly adjusted trim tab could cause difficult steering. Always test run af- ter the trim tab has been installed or re- placed to be sure steering is correct. Be sure you have tightened the bolt after ad- justing the trim tab. If the boat tends to veer the...
Page 25: Basic Components
Basic components 19 emu31420 top cowling lock lever (pull up type) to remove the top cowling, pull up the lock le- ver(s) and lift off the cowling. To install the top cowling, place it in its original position, and then move the lever(s) downward to lock it in place. Note: ● when installing the cowl...
Page 26: Basic Components
Basic components 20 ● the water separator warning indicator will blink. ● the buzzer will sound intermittently only when the gear shift is in neutral. ● if the warning system has activated, stop the engine and consult a yamaha dealer immediately. Emu31410 digital tachometer the tachometer shows the ...
Page 27: Basic Components
Basic components 21 emu26600 speedometer (digital type) this gauge shows the boat speed. 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. Watch the gauge when turning on the main switch ...
Page 28: Basic Components
Basic components 22 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. ● changing the display format pressing the “ ...
Page 29: Basic Components
Basic components 23 note: the clock operates on battery power. Discon- necting the battery will stop the clock. Reset the clock after connecting the battery. Emu26710 fuel gauge the fuel level is indicated by eight segments. When all segments are showing, the fuel tank is full. Caution: ecm00860 the...
Page 30: Basic Components
Basic components 24 emu26740 fuel management meter the fuel management meter shows the state of the fuel consumption while the engine is running. 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 op...
Page 31: Basic Components
Basic components 25 ● the fuel consumption meter and fuel econ- omy meter will indicate the same unit of measurement. Emu26760 fuel consumption meter this gauge displays the total amount of fuel consumed since the gauge was last reset. Press the “ ” (mode) button repeatedly until the indicator on th...
Page 32: Basic Components
Basic components 26 even of the same basic dimensions of the same design, can also cause a slight varia- tion in fuel consumption. Emu26780 twin-engine speed synchronizer this gauge displays the difference in engine speed (r/min) between the port and starboard engines for reference purposes when syn...
Page 33: Basic Components
Basic components 27 emu31680 tachometer unit the tachometer shows the engine revolutions per minute. It has functions of trim meter, ad- justing trolling speed, cooling water/engine temperature display, battery voltage display, total hour/trip hour display, oil pressure dis- play, water detection wa...
Page 34: Basic Components
Basic components 28 preoperation checks place the gear shift lever in neutral and turn the main switch to “ ” (on). After all the dis- plays come on and the total hour display comes on, the gauge will change to normal operation. If the buzzer sounds and the water separator warning indicator blinks, ...
Page 35: Basic Components
Basic components 29 caution: ecm01590 ● do not continue to run the engine if the overheat warning indicator blinks. Seri- ous engine damage will occur. ● do not continue to operate the engine if a warning device has activated. Consult your yamaha dealer if the problem can- not be located and correct...
Page 36: Basic Components
Basic components 30 port soon if the low battery voltage warning device has activated. For charging the bat- tery, consult your yamaha dealer. Emu31610 speed & fuel meter unit this unit shows the boat speed and has the functions of fuel meter, total fuel consumption display, fuel economy display, fu...
Page 37: Basic Components
Basic components 31 note: after the main switch is first turned on, all the displays come on as a test. After a few sec- onds, the gauge will change to normal opera- tion. Note: the speed & fuel meter unit shows various kinds of information according to the setting made with the “ ” (set) and “ ” (m...
Page 38: Basic Components
Basic components 32 emu31630 fuel management meter this meter has functions of fuel flow meter, to- tal consumption display, fuel economy dis- play, and remaining fuel display. Note: after the main switch is first turned on, all the displays come on as a test. After a few sec- onds, the gauge will c...
Page 39: Basic Components
Basic components 33 if the warning system has activated, stop the engine and check the cooling water inlet for clogging. Note: dual engine drive users: should the overheat warning system of one engine activate, the engine will slow down and the buzzer will sound. This will cause the other engine to ...
Page 40: Operation
Operation 34 emu26901 installation caution: ecm00110 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 eng...
Page 41: Operation
Operation 35 emu26930 mounting height (boat bottom) to run your boat at optimum efficiency, the water resistance (drag) of the boat and out- board motor must be made as little as possi- ble. The mounting height of the outboard motor greatly affects the water resistance. If the mounting height is too...
Page 42: Operation
Operation 36 emu31800 fuel ● check to be sure you have plenty of fuel for your trip. ● make sure there are no fuel leaks or gaso- line fumes. ● check fuel line connections to be sure they are tight. ● check the water in the fuel filter with the wa- ter separator warning device. Place the gear shift ...
Page 43: Operation
Operation 37 changing in recent years in response to con- cerns about pollution and resulting emissions regulations. One of the most obvious changes has been the elimination of lead from most fu- els. As gasoline has changed, the amount of addi- tives such as aromatics and oxygenates has increased. ...
Page 44: Operation
Operation 38 2. 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. Warning ewm00120 ● attach the engine stop switch lanyard to a secure place on your clothing, or you...
Page 45: Operation
Operation 39 emu27670 warming up engine emu30031 electric start models 1. After starting the engine, allow it to idle for 3 minutes to warm up. Failure to do so will shorten engine life. 2. Be sure the low oil pressure warning indi- cator remains off after starting the en- gine. 3. Check for a stead...
Page 46: Operation
Operation 40 back to neutral. If this occurs, stop the en- gine, shift to neutral, then restart the en- gine and allow it to warm up. To shift out of neutral 1. Pull the neutral interlock trigger up (if equipped). 2. Move the remote control lever firmly and crisply forward (for forward gear) or back...
Page 47: Operation
Operation 41 2. Remove the key if the boat will be left un- attended. Note: the engine can also be stopped by pulling the lanyard and removing the clip from the engine stop switch, then turning the main switch to “ ” (off). Emu27861 trimming outboard motor the trim angle of the outboard motor helps ...
Page 48: Operation
Operation 42 adjust the outboard motor trim angle using the power trim and tilt switch. To raise the bow (trim-out), press the switch “ ” (up). To lower the bow (trim-in), press the switch “ ” (down). Make test runs with the trim set to different an- gles to find the position that works best for you...
Page 49: Operation
Operation 43 bow down too much trim-in causes the boat to “plow” through the water, decreasing fuel economy and making it hard to increase speed. Operat- ing with excessive trim-in at higher speeds also makes the boat unstable. Resistance at the bow is greatly increased, heightening the danger of “b...
Page 50: Operation
Operation 44 4. Push the tilt support knob into the clamp bracket or pull the tilt support lever toward you to support the engine. Warning ewm00260 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...
Page 51: Operation
Operation 45 emu28055 procedure for tilting down (power trim and tilt models / power tilt models) 1. Push the power trim and tilt switch / pow- er tilt switch “ ” (up) until the outboard motor is supported by the tilt rod and the tilt support lever / tilt support knob be- comes free. 2. Release the ...
Page 52: Operation
Operation 46 warning ewm00660 ● place the gear shift in neutral before set- ting up for shallow water cruising. ● return the outboard motor to its normal position as soon as the boat is back in deeper water. Caution: ecm01490 ● if the engine speed is suddenly in- creased when the outboard motor is p...
Page 53: Maintenance
Maintenance 47 emu31480 specifications note: “(al)” stated in the specification data below represents the numerical value for the alumi- num propeller installed. Likewise, “(sus)” represents the value for stainless steel propeller installed and “(pl)” for plastic propeller installed. Emu28218 dimens...
Page 54: Maintenance
Maintenance 48 gear oil quantity: f250tr 918.0 cm³ (31.04 us oz) (32.38 imp.Oz) lf250tr 803.0 cm³ (27.15 us oz) (28.32 imp.Oz) tightening torque for engine: spark plug: 25.0 nm (18.4 ft-lb) (2.55 kgf-m) propeller nut: 55.0 nm (40.6 ft-lb) (5.61 kgf-m) engine oil drain bolt: 28.0 nm (20.7 ft-lb) (2.8...
Page 55: Maintenance
Maintenance 49 emu28303 procedure emu31920 conditioning and stabilizing fuel fill the fuel tank with fresh fuel and add one ounce of “yamaha fuel conditioner and sta- bilizer” (part no. Lub-fuelc-12-00) to each gallon of fuel. Note: the use of “yamaha fuel conditioner and stabilizer” eliminates the ...
Page 56: Maintenance
Maintenance 50 ● avoid bodily contact with electrolytic fluid as it can cause severe burns or per- manent eye injury. ● wear protective eye gear when handling or working near batteries. Antidote (external): ● skin - flush with water. ● eyes - flush with water for 15 minutes and get immediate medical...
Page 57: Maintenance
Maintenance 51 2. Screw the garden hose adapter onto a garden hose, which is connected to a fresh water supply, and then connect it to the garden hose connector. 3. With the engine off, turn on the water tap and let the water flush through the cool- ing passages for about 15 minutes. Turn off the wa...
Page 58: Maintenance
Maintenance 52 a service manual is available for purchase through your yamaha dealer for owners who have the mechanical skills, tools, and other equipment necessary to perform mainte- nance not covered by this owner’s manual. Emu28510 replacement parts if replacement parts are necessary, use only ge...
Page 59: Maintenance
Maintenance 53 emu28874 maintenance chart (additional) idling speed inspection pcv (pressure con- trol valve) inspection power trim and tilt unit inspection propeller and cotter pin inspection / replace- ment shift link / shift cable inspection / adjustment thermostat inspection / replace- ment thro...
Page 60: Maintenance
Maintenance 54 emu28931 greasing yamaha marine grease (water resistant grease) emu30771 cleaning and adjusting spark plug warning ewm00560 when removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosion ...
Page 61: Maintenance
Maintenance 55 caution: ecm01510 ● do not use any tools to remove or install the spark plug cap, otherwise the igni- tion coil coupler may get damaged. The spark plug cap may be difficult to re- move because the rubber seal on the end of the cap fits tightly. To remove the spark plug cap, simply twi...
Page 62: Maintenance
Maintenance 56 5. When fitting the plug, wipe off any dirt from the threads, and then screw it in to the correct torque. Note: if a torque-wrench is not available when you are fitting a spark plug, a good estimate of the correct torque is 1/4 to 1/2 turn past finger- tight. Have the spark plug adjus...
Page 63: Maintenance
Maintenance 57 caution: ecm01240 change the engine oil after the first 10 hours of operation, and every 100 hours or at 6-month intervals thereafter. Otherwise the engine will wear quickly. Note: change the engine oil when the oil is still warm. The engine oil can be extracted with an oil changer (r...
Page 64: Maintenance
Maintenance 58 7. Start the engine and make sure that the low oil pressure warning indicator re- mains off. Also, make sure that there are no oil leaks. Caution: ecm01620 if the low oil pressure warning indicator comes on or if there are oil leaks, stop the engine and find the cause. Continued op- e...
Page 65: Maintenance
Maintenance 59 2. Tilt the outboard motor 5–10 degrees up, then turn it entirely to the starboard side until the drain screw is directly below. 3. Prepare a suitable container that holds a larger amount than the engine oil capaci- ty. Loosen and remove the drain screw while holding the container und...
Page 66: Maintenance
Maintenance 60 emu29153 checking power trim and tilt system warning ewm00430 ● never get under the lower unit while it is tilted, even when the tilt support lever is locked. Severe injury could occur if the outboard motor accidentally falls. ● make sure no one is under the outboard motor before perf...
Page 67: Maintenance
Maintenance 61 emu29171 checking propeller warning ewm00321 you could be seriously injured if the en- gine accidentally starts when you are near the propeller. ● before inspecting, removing, or install- ing the propeller, remove the spark plug caps from the spark plugs. Also, place the shift control...
Page 68: Maintenance
Maintenance 62 emu30660 removing the propeller emu29194 spline models 1. Straighten the cotter pin and pull it out us- ing a pair of pliers. 2. Remove the propeller nut, washer, and spacer (if equipped). 3. Remove the propeller and thrust washer. Emu30670 installing the propeller emu29242 spline mod...
Page 69: Maintenance
Maintenance 63 emu31910 changing gear oil warning ewm00800 ● be sure the outboard motor is securely fastened to the transom or a stable stand. You could be severely injured if the outboard motor falls on you. ● never get under the lower unit while it is tilted, even when the tilt support lever or kn...
Page 70: Maintenance
Maintenance 64 note: for disposal of used oil, consult your yamaha dealer. 6. 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. 7. Put a new gasket on the oil level plug. When the oil begins t...
Page 71: Maintenance
Maintenance 65 emu29320 checking battery (for electric start models) warning ewm00330 battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poi- sonous and highly caustic. Always follow these preventive measures: ● avoid bodily contact with electrolytic fluid as it can ...
Page 72: Maintenance
Maintenance 66 2. Always keep the battery in a good state of charge. Installing a voltmeter will help you monitor your battery. If you will not use the boat for a month or more, remove the battery from the boat and store it in a cool, dark place. Completely recharge the battery before using it. 3. I...
Page 73: Maintenance
Maintenance 67 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. Emu31351 checking top cowling ...
Page 74: Trouble Recovery
Trouble recovery 68 emu29424 troubleshooting a problem in the fuel, compression, or ignition systems can cause poor starting, loss of pow- er, or other problems. This section describes basic checks and possible remedies, and cov- ers all yamaha outboard motors. Therefore some items may not apply to ...
Page 75: Trouble Recovery
Trouble recovery 69 a. Check for pinched or kinked fuel line or oth- er obstructions in fuel system. Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Have ignition parts failed? A. Have serviced by a yamaha dealer. Q. Ha...
Page 76: Trouble Recovery
Trouble recovery 70 q. Is load on boat improperly distributed? 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. Q. Is propeller damaged? ...
Page 77: Trouble Recovery
Trouble recovery 71 a. Connect correctly. Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with rec- ommended type. Q. Is high pressure fuel pump drive belt bro- ken? A. Have serviced by a yamaha dealer. Q. Is engine not responding properly to shift lever position? A. H...
Page 78: Trouble Recovery
Trouble recovery 72 emu29471 replacing fuse if a fuse has blown, remove the electrical cov- er, open the fuse holder and remove the fuse with a fuse puller (if equipped). Replace it with a spare one of the proper amperage. Warning ewm00630 be sure to use the specified fuse. An in- correct fuse or a ...
Page 79: Trouble Recovery
Trouble recovery 73 emu29522 power trim and tilt / power tilt will not operate if the engine cannot be tilted up or down with the power trim and tilt / the power tilt because of a discharged battery or a failure with the power trim and tilt unit / the power tilt unit, the engine can be tilted manual...
Page 80: Trouble Recovery
Trouble recovery 74 4. Disconnect the water detection switch coupler. Caution: ecm01570 be careful not to get any water on the wa- ter detection switch coupler, otherwise a malfunction could occur. 5. Unscrew the filter cup from the filter hous- ing. Note: be careful not to twist the water detection...
Page 81: Trouble Recovery
Trouble recovery 75 9. Fasten the water detection switch lead with the holder. 10. Install the top cowling. 11. Start the engine and make sure that the water separator warning indicator re- mains off. Note: have a yamaha dealer inspect the outboard motor after returning to port. Emu29760 treatment o...
Page 82: Consumer Information
Consumer information 76 emu29811 important warranty information for u.S.A. And canada u6p213e0.Book page 76 thursday, march 9, 2006 10:20 am.
Page 83: Consumer Information
Consumer information 77 u6p213e0.Book page 77 thursday, march 9, 2006 10:20 am.
Page 84: Consumer Information
Consumer information 78 emu29830 yamaha motor corporation, u.S.A. Four-stroke outboard motor three-year limited warranty u6p213e0.Book page 78 thursday, march 9, 2006 10:20 am.
Page 85: Consumer Information
Consumer information 79 u6p213e0.Book page 79 thursday, march 9, 2006 10:20 am.
Page 86: Consumer Information
Consumer information 80 emu29841 important warranty information if you use your yamaha outside the usa or canada u6p213e0.Book page 80 thursday, march 9, 2006 10:20 am.
Page 87
U6p213e0.Book page 81 thursday, march 9, 2006 10:20 am.
Page 88
March 2006–3.5 × 1 cr printed in japan printed on recycled paper yamaha motor corporation, usa.
Page 89
Yamaha motor co., ltd. Made in japan pays d'origine japon outboard motor w arranty registra tion enregistrement de la garantie du mo teur hors-bord please complete and mail this card. This information is necessary to accurately register your unit for warranty . V euillez signer ci-dessous pour attes...
Page 90
Place post age here a ttn: w a rr ant y dep a rtment warranty card 2/27/02 11:47 am page 2.