Yamaha YXR660FAS Service Manual download pdf (Page 12)

CRANKCASE ................................................................................................4-66

STARTER MOTOR, TIMING CHAIN AND OIL FILTER..........................4-66

CRANKCASE ..........................................................................................4-68

CRANKCASE BEARINGS.......................................................................4-69

SEPARATING THE CRANKCASE..........................................................4-70

CHECKING THE TIMING CHAIN AND GUIDES ....................................4-70

CHECKING THE OIL DELIVERY PIPE...................................................4-70

CHECKING THE RELIEF VALVE ...........................................................4-71

CHECKING THE CRANKCASE ..............................................................4-71

CHECKING THE BEARINGS..................................................................4-71

ASSEMBLING THE CRANKCASE..........................................................4-71

INSTALLING THE SHIFT LEVERS.........................................................4-72

CRANKSHAFT AND OIL PUMP ...................................................................4-73

OIL PUMP ...............................................................................................4-74

REMOVING THE CRANKSHAFT ...........................................................4-75

CHECKING THE OIL PUMP ...................................................................4-75

CHECKING THE RELIEF VALVE ...........................................................4-76

CHECKING THE OIL STRAINER ...........................................................4-76

ASSEMBLING THE OIL PUMP...............................................................4-76

CHECKING THE CRANKSHAFT ............................................................4-77

INSTALLING THE CRANKSHAFT AND BALANCER .............................4-78

TRANSMISSION............................................................................................4-79

DRIVE AXLE ASSEMBLY ....................................................................... 4-80

REMOVING THE TRANSMISSION ........................................................4-81

CHECKING THE SHIFT FORKS.............................................................4-81

CHECKING THE SHIFT DRUM ..............................................................4-82

CHECKING THE DRIVE AXLE ...............................................................4-82

CHECKING THE HIGH WHEEL GEAR AND MIDDLE DRIVE GEAR ....4-82

CHECKING THE SECONDARY SHAFT AND DRIVEN SPROCKET.....4-83

CHECKING THE CHAIN .........................................................................4-83

ASSEMBLING THE SHIFT FORK ASSEMBLY ...................................... 4-84

INSTALLING THE TRANSMISSION .......................................................4-84

MIDDLE GEAR ..............................................................................................4-85

MIDDLE DRIVE SHAFT ..........................................................................4-85

MIDDLE DRIVEN SHAFT........................................................................4-86

REMOVING THE MIDDLE DRIVE SHAFT .............................................4-88

REMOVING THE MIDDLE DRIVEN SHAFT...........................................4-88

CHECKING THE PINION GEARS ..........................................................4-91

SELECTING THE MIDDLE DRIVE AND DRIVEN GEAR SHIMS...........4-92

INSTALLING THE MIDDLE DRIVEN SHAFT .........................................4-95

INSTALLING THE MIDDLE DRIVE SHAFT ............................................4-97

MEASURING THE MIDDLE GEAR BACKLASH.....................................4-98

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Yamaha YXR660FAS Service Manual Page 12