Honda CBR650F Service Manual page 243

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CRANKCASE/TRANSMISSION
SERVICE INFORMATION
CRANKCASE/TRANSMISSION
GENERAL
• The crankcase must be separated to service the following:
– Transmission
– Crankshaft (page 14-4)
– Piston/connecting rod/cylinder (page 14-13)
• The following components must be removed before separating the crankcase:
– Engine (page 15-4)
– Clutch (page 11-6)
– Gearshift linkage (page 11-18)
– Starter clutch (page 11-13)
– Flywheel (page 12-5)
– Cylinder head (page 10-10)
– Oil pan (page 9-4)
– Oil pump (page 9-4)
– Oil cooler (page 9-8)
– Starter motor (page 6-5)
– Water pump (page 8-10)
– EOP switch (page 21-14)
– VS sensor (page 4-38)
– Neutral switch (page 21-18)
• Be careful not to damage the crankcase mating surfaces when servicing.
• Prior to assembling the crankcase halves, apply sealant to their mating surfaces. Wipe off excess sealant thoroughly.
TROUBLESHOOTING
Hard to shift
• Improper clutch operation
• Improper engine oil viscosity
• Bent shift fork
• Bent shift fork shaft
• Bent shift fork claw
• Damaged shift drum guide groove
• Bent gearshift spindle (page 11-19)
Transmission jumps out of gear
• Worn gear dogs
• Worn gear shifter groove
• Bent shift fork shaft
• Broken shift drum stopper arm (page 11-19)
• Broken shift drum stopper arm return spring (page 11-19)
• Worn or bent shift forks
• Broken gearshift spindle return spring (page 11-19)
Excessive engine noise
• Worn or damaged transmission gear
• Worn or damaged transmission bearings
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