Yamaha FT50C Service Manual page 51

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
Replacing the engine oil ............................................................................3-4
Checking the timing belt ............................................................................3-5
Checking the valve clearance.................................................................... 3-5
Checking the spark plugs ..........................................................................3-7
Checking the thermostat............................................................................3-8
Checking the cooling water passage.........................................................3-8
Control system ............................................................................................... 3-9
Checking the throttle cable operation ........................................................3-9
Checking the gearshift operation............................................................... 3-9
Checking the engine idle speed ..............................................................3-10
Checking the ignition timing..................................................................... 3-11
Power trim and tilt unit ................................................................................ 3-11
Checking the power trim and tilt operation .............................................. 3-11
Checking the power trim and tilt fluid level .............................................. 3-12
Lower unit ..................................................................................................... 3-12
Checking the gear oil level ...................................................................... 3-12
Replacing the gear oil.............................................................................. 3-13
Checking the lower unit (for air leakage) ................................................. 3-14
Checking the propeller............................................................................. 3-14
General..........................................................................................................3-14
Checking the anodes............................................................................... 3-14
Checking the battery................................................................................ 3-15
Lubrication ...............................................................................................3-16
62Y5A11
Periodic checks and adjustments
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3
4
5
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7
8
9