Valve Clearance
4. Loosen the cam sprocket bolt (4).
Rotate the primary drive gear bolt (crankshaft)
clockwise one turn and remove the other
sprocket bolt. Rotate the primary drive gear
bolt (crankshaft) clockwise one turn again and
remove the other sprocket bolt.
5. Remove the cam sprocket (5) and then attach
a piece of wire to the cam chain (6) to prevent
it from falling into the crankcase.
Do not let the bolts, sprocket and cam chain fall
into the crankcase.
NOTICE
(4) cam sprocket bolts
(5) cam sprocket
(6) cam chain
6. Make sure the piston is at TDC (Top Dead
Centre) on the compression storoke. Loosen
the camshaft holder bolts (7) in a crisscross
pattern in 2 or 3 steps.
7. Remove the camshaft holder bolts and
camshaft holder assembly (8).
The intake valve lifter and intake valve shim
may be sticking in the camshaft holder
assembly.
Keep the intake valve lifters and shims so as to
allow identification of the originally installed
location such as intake or exhaust, right or left.
(7) camshaft holder bolts
(8) camshaft holder assembly
8. Remove the intake valve lifters (9) and shims
(10).
Do not let the valve lifters and shims fall into the
crankcase.
NOTICE
(6)
(4)
(5)
(7)
(8)
(9)
(10)
(9) intake valve lifters
(10) shims
70
Servicing Your Honda
061-085.qxd 06.6.1 11:00 ページ70
Summary of Contents for CRF450X
Page 3: ...Honda CRF450X OWNER S MANUAL COMPETITION HANDBOOK Contents qxd 06 6 1 10 56 ページ2 ...
Page 12: ...6 Motorcycle Safety 001 030 qxd 06 6 1 10 57 ページ6 ...
Page 18: ...12 Before Riding 001 030 qxd 06 6 1 10 57 ページ12 ...
Page 28: ...22 Basic Operating Instructions 001 030 qxd 06 6 1 10 57 ページ22 ...
Page 156: ...150 Taking Care of Unexpected 142 168 qxd 06 6 1 11 08 ページ150 ...
Page 169: ...Technical Information 163 Wiring Diagram 142 168 qxd 06 6 1 11 08 ページ163 ...