Yamaha WR450F Owner's Service Manual page 227

GENERATOR AND STARTER CLUTCH.......................................................6-63
REMOVING THE GENERATOR ..............................................................6-65
CHECKING THE STARTER CLUTCH .....................................................6-65
INSTALLING THE STARTER CLUTCH ...................................................6-66
INSTALLING THE GENERATOR.............................................................6-67
CRANKCASE .................................................................................................6-69
DISASSEMBLING THE CRANKCASE.....................................................6-72
REMOVING THE CRANKCASE BEARING .............................................6-72
CHECKING THE TIMING CHAIN, TIMING CHAIN GUIDE, OIL
STRAINER ..............................................................................................6-72
CHECKING THE CRANKCASE ...............................................................6-72
INSTALLING THE OIL SEAL ...................................................................6-73
ASSEMBLING THE CRANKCASE...........................................................6-73
CRANKSHAFT ASSEMBLY AND BALANCER SHAFT ...............................6-74
REMOVING THE BALANCER SHAFT.....................................................6-75
REMOVING THE CRANKSHAFT ASSEMBLY ........................................6-75
CHECKING THE CRANKSHAFT ASSEMBLY.........................................6-75
INSTALLING THE CRANKSHAFT ASSEMBLY.......................................6-76
TRANSMISSION.............................................................................................6-77
REMOVING THE TRANSMISSION .........................................................6-78
CHECKING THE SHIFT FORKS..............................................................6-78
CHECKING THE SHIFT DRUM ASSEMBLY...........................................6-79
CHECKING THE TRANSMISSION ..........................................................6-79
INSTALLING THE TRANSMISSION ........................................................6-79