Yamaha YFM660FP Service Manual page 12

CHECKING THE BALANCER DRIVE ................................................. 4-49
INSTALLING THE BALANCER DRIVE GEAR
AND BALANCER DRIVEN GEAR ................................................... 4-49
PRIMARY AND SECONDARY SHEAVES ................................................. 4-51
PRIMARY SHEAVE ............................................................................. 4-53
SECONDARY SHEAVE ...................................................................... 4-54
REMOVING THE PRIMARY AND SECONDARY SHEAVES ............. 4-55
DISASSEMBLING THE SECONDARY SHEAVE ................................ 4-55
CHEKING THE PRIMARY SHEAVE ................................................... 4-56
CHECKING THE SECONDARY SHEAVE .......................................... 4-56
ASSEMBLING THE PRIMARY SHEAVE ............................................ 4-57
ASSEMBLING THE SECONDARY SHEAVE ...................................... 4-57
INSTALLING THE PRIMARY AND SECONDARY SHEAVES ............ 4-59
CLUTCH ...................................................................................................... 4-60
REMOVING THE CLUTCH ................................................................. 4-62
CHECKING THE CLUTCH .................................................................. 4-62
INSTALLING THE CLUTCH ................................................................ 4-63
CRANKCASE .............................................................................................. 4-65
STARTER MOTOR, TIMING CHAIN AND OIL FILTER ...................... 4-65
CRANKCASE ...................................................................................... 4-67
CRANKCASE BEARING ..................................................................... 4-68
SEPARATING THE CRANKCASE ...................................................... 4-69
CHECKING THE TIMING CHAIN AND GUIDE ................................... 4-69
CHECKING THE OIL DELIVERY PIPE ............................................... 4-69
CHECKING THE CRANKCASE .......................................................... 4-70
CHECKING THE BEARINGS .............................................................. 4-70
ASSEMBLING THE CRANKCASE ...................................................... 4-70
INSTALLATING THE SHIFT LEVER ................................................... 4-71
CRANKSHAFT AND OIL PUMP ................................................................ 4-72
OIL PUMP ........................................................................................... 4-73
REMOVING THE CRANKSHAFT ....................................................... 4-74
CHECKING THE OIL PUMP ............................................................... 4-74
CHECKING THE RELIEF VALVE ....................................................... 4-75
CHECKING THE OIL STRAINER ....................................................... 4-75
ASSEMBLING THE OIL PUMP ........................................................... 4-75
CHECKING THE CRANKSHAFT ........................................................ 4-76
INSTALLING THE CRANKSHAFT AND BALANCER ......................... 4-77