Crankcase/Crankshaftitransmission/Balancer; Service Information - Honda CRF450R 2009 Service Manual

CRANKCASE/CRANKSHAFTITRANSMISSION/BALANCER
SERVICE INFORMATION
GENERAL
This section covers crankcase separation for service of the crankshaft, transmission and balancer.
The crankcase must be separated to service the crankshaft and transmission. To service these parts, the engine must be
removed from the frame.
The balancer can
be
serviced with the engine installed in the frame.
The following parts must be removed before separating the crankcase.
- Cylinder head (page 9-16)
- Cylinder (page 10· 5)1Piston (page 10-6)
- Clutch (page 11.10)lKickstarter (page 11·22)/Gearshlft linkage (page 11-25)
- Balancer (page 13· 7)
- Flywheel (page 12-7)
- Gear position switch (page 17-19) ('09 model only)
- Engine (page 8-6)
Be careful not to damage the crankcase mating surfaces when servicing.
Clean the oil passages before assembling the crankcase halves.
SPECIFICATIONS
Crankshaft
,
shift fork shaft
ITEM
Side clearance
r----R;dfal clearance
Runoul
bushing
clearance
____
~~"'~~n~ S T ; ~ A NDARD
M
- 28.028
13-3