Camshaft/Rocker Arm Removal - Honda 2010 CRF250R Service Manual

CYLINDER HEADNALVES
CAMSHAFT/ROCKER ARM REMOVAL
CAMSHAFT
Remove the cylinder head cover (page 8-7).
After
"12
only:
Remove the condenser (page 16-16).
Remove the crankshaft hole cap and O-flng.
Turn the crankshaft clockwise to align the punch mark
C
on the primary drive gear with the index mar1< on the
righ t crankcase cover. PUNCH MARK
8·10
Check the index line on the cam sprocket aligns with
cylinder head top surface
Make sure the piston is al TOC (Top Dead Cenler) on
the compression stroke .
This position can be obtained by confirming that there 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
index mali< on the right crankcase cover again .
Remove the cam chain tensioner lifter bolt and sealing
washer.
Insert the cam chain tensioner holder into the cam
chain tensioner hfter.
Tum the cam chain tensioner holder clockwise fully and
lock the cam chain tensioner lifter by pushing the
handle.
TOOL:
Cam chain tensioner holder
070MG-001 01 00 or
07AMG-001A100
(U.S.A. only)
'10 shown:
Align