Honda CRF450R 2009 Service Manual page 252

CYLINDER HEADNALVES
CAMSHAFT/ROCKER ARM REMOVAL
CAMSHAFT
9-10
Remove the cylinder head cover (page 9-7).
Arter
'12: Remove the condenser (page 17-22).
Remove the crankshaft hole cap and a-ring .
Tum the crankshaft clockwise to align the punch mark
on the primary drive gear with the·
t::."
mark on the right
crankcase
cover.
Check that the index line on the cam sprocket aligns
with cut-out of
the
camshaft holder.
Make sure the piston is al TDC (Top Dead Center) on
the compression stroke.
This position can
be
obtained by confirming thallhere is
slack in the rocker arm .
If there is no slack, it is because the piston is moving
through the exhaust stroke to TDC.
Rotate the crankshaft clockwise one full turn , and
match up the punch mark on the primary drive gear with
"S
mark on the right crankcase cover again. PUNCH MARK
Remove the cam chain tensioner lifter bolt and sealing
washer.
Insert the cam chain tensioner holder into the cam
chain tensioner lifter.
Turn the cam chain tensioner holder clockwise fully and
lock the cam chain tensioner lifter
by
pushing the
handle.
TOOL :
Cam chain tensloner holder
070MG-001
01 00 or
07AMG-001A100
(U.S.A. only)
HOLDER