Honda CRF450R 2009 Service Manual page 344

CRANKCASE/CRANKSHAFTITRANSMISSIONIBALANCER
13·16
INSPECTION
OIL PUMP SHAFT NEEDLE BEARING
Check the oil pump shaft needle bearings for wear or , - "
damage, replace them
if
necessary (page 13-26).
Also check Ihallhe needle bearings fil tightly in the left
crankcase.
TRANSMISSION NEEDLE BEARING
Check the C1 gear needle bearing for damage.
Replace the needle bearing if necessary.
GEAR
LEFT CRANKCASE
Check the gear dogs, dog holders and teeth for damage , - - - - - - - - - - - - - - - - - - - ,
or excessive wear.