Yamaha F150A Service Manual page 84

POWR
Special service tools .....................................................................................5-1
Power unit....................................................................................................... 5-3
Checking the compression pressure .......................................................5-11
Checking the oil pressure ........................................................................5-11
Checking the oil pressure sensor ............................................................ 5-12
Checking the valve clearance.................................................................. 5-12
Replacing the timing belt .........................................................................5-16
Removing the power unit.........................................................................5-18
Removing the oil filter .............................................................................. 5-20
Removing the timing belt and sprockets.................................................. 5-20
Checking the timing belt and sprockets...................................................5-21
Installing the sprockets and timing belt....................................................5-21
Cylinder head ...............................................................................................5-23
Removing the cylinder head .................................................................... 5-28
Checking the valve springs...................................................................... 5-28
Checking the valves ................................................................................ 5-29
Checking the valve guides....................................................................... 5-29
Replacing the valve guides...................................................................... 5-30
Checking the valve seat ..........................................................................5-31
Refacing the valve seat ...........................................................................5-31
Checking the camshaft ............................................................................5-33
Checking the cylinder head ..................................................................... 5-34
Installing the valves ................................................................................. 5-34
Installing the cylinder head ...................................................................... 5-35
Removing the exhaust cover ................................................................... 5-37
Checking the pressure control valve .......................................................5-37
Installing the pressure control valve ........................................................ 5-37
Power unit
63P3F11