Yamaha 2004 YXR660 Service Manual page 7

VALVES AND VALVE SPRINGS.................................................................. 4-25
REMOVING THE VALVES AND VALVE SPRINGS ...............................4-26
CHECKING THE VALVES AND VALVE SPRINGS ................................4-27
INSTALLING THE VALVES AND VALVE SPRINGS ..............................4-31
CYLINDER AND PISTON.............................................................................. 4-33
REMOVING THE PISTON ...................................................................... 4-34
CHECKING THE CYLINDER AND PISTON ...........................................4-34
CHECKING THE PISTON RINGS........................................................... 4-36
CHECKING THE PISTON PIN ................................................................4-37
INSTALLING THE PISTON ..................................................................... 4-37
INSTALLING THE CYLINDER ................................................................4-39
ENGINE COOLING FAN AND A.C. MAGNETO...........................................4-40
REMOVING THE A.C. MAGNETO.......................................................... 4-43
CHECKING THE A.C. MAGNETO .......................................................... 4-43
CHECKING THE STARTER CLUTCH ....................................................4-44
CHECKING THE ENGINE COOLING FAN............................................. 4-45
INSTALLING THE A.C. MAGNETO ........................................................ 4-45
BALANCER GEARS AND OIL PUMP GEARS ............................................4-48
REMOVING THE BALANCER DRIVE GEAR
AND BALANCER DRIVEN GEAR........................................................... 4-50
CHECKING THE OIL PUMP DRIVE GEAR
AND OIL PUMP DRIVEN GEAR ............................................................. 4-50
CHECKING THE BALANCER DRIVE GEAR
AND BALANCER DRIVEN GEAR........................................................... 4-50
INSTALLING THE BALANCER DRIVE GEAR
AND BALANCER DRIVEN GEAR........................................................... 4-51
PRIMARY AND SECONDARY SHEAVES....................................................4-52
PRIMARY SHEAVE................................................................................. 4-54
SECONDARY SHEAVE ..........................................................................4-55
REMOVING THE PRIMARY AND SECONDARY SHEAVES ................. 4-56
DISASSEMBLING THE SECONDARY SHEAVE.................................... 4-56
CHECKING THE PRIMARY SHEAVE ....................................................4-57
CHECKING THE SECONDARY SHEAVE .............................................. 4-57
ASSEMBLING THE PRIMARY SHEAVE ................................................ 4-58
ASSEMBLING THE SECONDARY SHEAVE..........................................4-58
INSTALLING THE PRIMARY AND SECONDARY SHEAVES................ 4-60
CLUTCH ........................................................................................................4-61
REMOVING THE CLUTCH ..................................................................... 4-63
CHECKING THE CLUTCH...................................................................... 4-63
INSTALLING THE CLUTCH.................................................................... 4-64