Honda CRF450R 2009 Service Manual page 257

CYLINDER HEADNALVES
After '09:
CAMSHAFT
STOPPER PIN
~
DECOMPRESSOR PLUNGER
DECOMPRESSOR SPRING
Apply molybdenum oil solution to the decompressor
weight
Ip
7 and q:. 6.5 area and plunger sliding area.
Install the spring onto the decompressor weight but do
not hook the spring end to the decompressor weight
yet.
Install the plunger with its cut-out facing the
decompressor side.
Install the decompressor weight by aligning the lower
side spring end with the camshaft nange and
deoompressor weight end with the plunger cut-out.
Check the plunger operation by moving the
decompressor weight with your finger.
CAMSHAFT BEARING
DECOMPRESSOR WEIGHT
/
PLUNGER
DECOMPRESSOR
WEIGHT
SPRING
SIDE
END
9·15