Yamaha F50F Service Manual page 90

POWR
Special service tools .....................................................................................5-1
Power unit....................................................................................................... 5-3
Checking the compression pressure .........................................................5-3
Checking the oil pressure ..........................................................................5-3
Checking the valve clearance.................................................................... 5-4
Removing the power unit.........................................................................5-14
Removing the timing belt and sprockets.................................................. 5-15
Checking the timing belt and sprockets...................................................5-16
Installing the timing belt and sprockets....................................................5-17
Cylinder head ...............................................................................................5-19
Removing the cylinder head .................................................................... 5-23
Checking the valve springs...................................................................... 5-24
Checking the valves ................................................................................ 5-24
Checking the valve guides....................................................................... 5-25
Replacing the valve guides...................................................................... 5-25
Checking the valve seat ..........................................................................5-26
Refacing the valve seat ...........................................................................5-27
Checking the rocker arms and rocker arm shaft...................................... 5-29
Checking the camshaft ............................................................................5-29
Checking the cylinder head ..................................................................... 5-30
Checking the oil pump ............................................................................. 5-31
Installing the valves ................................................................................. 5-31
Installing the camshaft............................................................................. 5-32
Installing the rocker arm shaft assembly ................................................. 5-32
Installing the oil pump.............................................................................. 5-33
Installing the cylinder head ...................................................................... 5-34
Exhaust cover ..............................................................................................5-35
Power unit
6C13G11