Engine - Yamaha Grizzly550 User Manual

ENGINE REMOVAL ........................................................................................5-1
INSTALLING THE MUFFLER ...................................................................5-2
INSTALLING THE V-BELT COOLING DUCTS......................................... 5-2
INSTALLING THE DRIVE SELECT LEVER UNIT ....................................5-5
INSTALLING THE ENGINE....................................................................... 5-9
CYLINDER HEAD.......................................................................................... 5-10
REMOVING THE CYLINDER HEAD.......................................................5-12
CHECKING THE CYLINDER HEAD .......................................................5-12
CHECKING THE CAMSHAFT SPROCKET............................................5-13
CHECKING THE TAPPET COVERS AND CAMSHAFT
SPROCKET COVER .............................................................................. 5-13
CHECKING THE TIMING CHAIN TENSIONER...................................... 5-13
INSTALLING THE CYLINDER HEAD .....................................................5-14
ROCKER ARMS AND CAMSHAFT ..............................................................5-17
REMOVING THE ROCKER ARMS AND CAMSHAFT............................ 5-18
CHECKING THE CAMSHAFT.................................................................5-18
CHECKING THE DECOMPRESSION SYSTEM..................................... 5-19
CHECKING THE ROCKER ARMS AND ROCKER ARM SHAFTS ........ 5-19
INSTALLING THE CAMSHAFT AND ROCKER ARMS .......................... 5-19
VALVES AND VALVE SPRINGS.................................................................. 5-21
REMOVING THE VALVES...................................................................... 5-22
CHECKING THE VALVES AND VALVE GUIDES ..................................5-22
CHECKING THE VALVE SEATS ............................................................ 5-24
CHECKING THE VALVE SPRINGS........................................................ 5-25
INSTALLING THE VALVES .................................................................... 5-26
CYLINDER AND PISTON.............................................................................. 5-28
REMOVING THE PISTON ...................................................................... 5-29
CHECKING THE CYLINDER AND PISTON ...........................................5-29
CHECKING THE PISTON RINGS........................................................... 5-30
CHECKING THE PISTON PIN ................................................................5-31
INSTALLING THE PISTON AND CYLINDER .........................................5-32
AC MAGNETO AND STARTER CLUTCH ....................................................5-34
REMOVING THE AC MAGNETO ROTOR.............................................. 5-36
REMOVING THE STARTER CLUTCH ...................................................5-36
CHECKING THE STATOR COIL AND CRANKSHAFT
POSITION SENSOR .............................................................................. 5-37
CHECKING THE STARTER CLUTCH ....................................................5-37
CHECKING THE TORQUE LIMITER......................................................5-37
INSTALLING THE STARTER CLUTCH .................................................. 5-37
INSTALLING THE AC MAGNETO .......................................................... 5-38

ENGINE

5
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