Yamaha F50A - Periodic Checks and Adjustments; Special Service Tools; Maintenance Interval Chart; Top Cowling

62Y3A11
CHK
ADJ
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Periodic checks and adjustments
Special service tools .....................................................................................3-1
Maintenance interval chart............................................................................3-3
Top cowling ....................................................................................................3-4
Checking the top cowling...........................................................................3-4
Fuel system ....................................................................................................3-4
Checking the fuel joint and fuel hoses (fuel joint-to-carburetor) ................3-4
Checking the fuel filter ...............................................................................3-5
Power unit.......................................................................................................3-5
Checking the engine oil .............................................................................3-5
Replacing the engine oil ............................................................................3-5
Checking the timing belt ............................................................................3-7
Replacing the timing belt ...........................................................................3-7
Checking the valve clearance..................................................................3-10
Checking the spark plugs ........................................................................3-11
Checking the thermostat..........................................................................3-12
Checking the cooling water passage.......................................................3-13
Control system.............................................................................................3-13
Checking the throttle cable operation......................................................3-13
Checking the gearshift operation.............................................................3-14
Checking the engine idle speed ..............................................................3-15
Checking the ignition timing.....................................................................3-15
Power trim and tilt unit ................................................................................3-16
Checking the power trim and tilt operation ..............................................3-16
Checking the power trim and tilt fluid level ..............................................3-16
Lower unit.....................................................................................................3-17
Checking the gear oil level ......................................................................3-17
Replacing the gear oil..............................................................................3-17
Checking the lower unit (for air leakage) .................................................3-19
Checking the propeller.............................................................................3-19
General..........................................................................................................3-19
Checking the anodes...............................................................................3-19
Checking the battery................................................................................3-20
Lubrication ...............................................................................................3-21