Powr - Yamaha FT50C Service Manual

POWR

Special service tools .....................................................................................5-1
Power unit....................................................................................................... 5-3
Checking the compression pressure .......................................................5-13
Checking the oil pressure ........................................................................5-13
Removing the power unit.........................................................................5-13
Timing belt and sprockets...........................................................................5-16
Removing the timing belt and sprockets.................................................. 5-17
Checking the timing belt and sprockets...................................................5-18
Installing the sprockets and timing belt....................................................5-18
Cylinder head ...............................................................................................5-21
Removing the cylinder head .................................................................... 5-24
Checking the valve springs...................................................................... 5-25
Checking the valves ................................................................................ 5-25
Checking the valve guides....................................................................... 5-26
Replacing the valve guides...................................................................... 5-26
Checking the valve seat ..........................................................................5-27
Refacing the valve seat ...........................................................................5-28
Checking the rocker arms and rocker arm shaft...................................... 5-30
Checking the camshaft ............................................................................5-30
Checking the cylinder head ..................................................................... 5-31
Checking the oil pump ............................................................................. 5-31
Installing the valves ................................................................................. 5-32
Installing the camshaft............................................................................. 5-33
Installing the rocker arm assembly .......................................................... 5-33
Installing the cylinder head ...................................................................... 5-34
Power unit
62Y5A11