Yamaha YXR70FX Service Manual page 12

PRIMARY AND SECONDARY SHEAVES....................................................4-55
PRIMARY SHEAVE................................................................................. 4-57
SECONDARY SHEAVE ..........................................................................4-58
REMOVING THE PRIMARY AND SECONDARY SHEAVES ................. 4-59
DISASSEMBLING THE SECONDARY SHEAVE.................................... 4-59
CHECKING THE PRIMARY SHEAVE ....................................................4-60
CHECKING THE SECONDARY SHEAVE .............................................. 4-60
ASSEMBLING THE PRIMARY SHEAVE ................................................ 4-61
ASSEMBLING THE SECONDARY SHEAVE..........................................4-62
INSTALLING THE PRIMARY AND SECONDARY SHEAVES................ 4-64
CLUTCH ........................................................................................................4-65
REMOVING THE CLUTCH ..................................................................... 4-67
CHECKING THE CLUTCH...................................................................... 4-68
INSTALLING THE CLUTCH.................................................................... 4-69
CRANKCASE ................................................................................................4-70
TIMING CHAIN AND OIL FILTER ........................................................... 4-70
CRANKCASE .......................................................................................... 4-72
CRANKCASE BEARINGS....................................................................... 4-73
SEPARATING THE CRANKCASE.......................................................... 4-74
CHECKING THE TIMING CHAIN AND GUIDE....................................... 4-74
CHECKING THE RELIEF VALVE ........................................................... 4-74
CHECKING THE BEARINGS.................................................................. 4-75
CHECKING THE CRANKCASE ..............................................................4-75
ASSEMBLING THE CRANKCASE.......................................................... 4-75
INSTALLING THE SHIFT LEVER ........................................................... 4-76
CRANKSHAFT AND OIL PUMP ................................................................... 4-77
OIL PUMP ...............................................................................................4-78
REMOVING THE CRANKSHAFT ........................................................... 4-79
CHECKING THE OIL PUMP ................................................................... 4-79
CHECKING THE OIL STRAINER ........................................................... 4-80
CHECKING THE CRANKSHAFT ............................................................ 4-80
ASSEMBLING THE OIL PUMP...............................................................4-81
INSTALLING THE CRANKSHAFT .......................................................... 4-81
TRANSMISSION............................................................................................ 4-83
DRIVE AXLE ........................................................................................... 4-85
REMOVING THE TRANSMISSION ........................................................ 4-87
CHECKING THE SHIFT FORKS............................................................. 4-87
CHECKING THE SHIFT DRUM ..............................................................4-88
CHECKING THE TRANSMISSION ......................................................... 4-88
CHECKING THE SECONDARY SHAFT................................................. 4-89
ASSEMBLING THE SHIFT FORK ASSEMBLY ...................................... 4-89
INSTALLING THE TRANSMISSION .......................................................4-89