Yamaha F25C Service Manual page 31

CHK
ADJ
Special service tools .....................................................................................3-1
Maintenance interval chart............................................................................3-2
Top cowling .................................................................................................... 3-3
Checking the top cowling...........................................................................3-3
Fuel system .................................................................................................... 3-3
Checking the fuel joint and fuel hoses (fuel joint-to-carburetor) ................ 3-3
Checking the fuel filter ............................................................................... 3-3
Power unit....................................................................................................... 3-4
Checking the engine oil .............................................................................3-4
Changing the engine oil.............................................................................3-4
Replacing the oil filter ................................................................................ 3-5
Checking the timing belt ............................................................................3-5
Checking the spark plugs ..........................................................................3-6
Checking the thermostat............................................................................3-6
Checking the cooling water passage.........................................................3-7
Control system ............................................................................................... 3-7
Adjusting the throttle link ...........................................................................3-7
Adjusting the throttle cables (tiller handle model)...................................... 3-8
Adjusting the throttle cable (remote control model) ...................................3-8
Checking the gear shift operation (tiller handle model) ............................. 3-9
Checking the gear shift operation (remote control model).........................3-9
Checking the start-in-gear protection ........................................................3-9
Checking the engine idle speed ..............................................................3-10
Checking the ignition timing..................................................................... 3-10
Bracket ..........................................................................................................3-11
Checking the tilt operation ....................................................................... 3-11
Lower unit ..................................................................................................... 3-11
Checking the gear oil level ...................................................................... 3-11
Changing the gear oil .............................................................................. 3-12
Checking the lower unit for air leakage ...................................................3-12
Checking the propeller............................................................................. 3-12
General..........................................................................................................3-13
Checking the anodes............................................................................... 3-13
Lubricating the outboard motor................................................................3-13
6D55F11
Periodic checks and adjustments
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5
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7
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9