Honda CRF450R 2006, Owner'S Manual

Page: 64 / 172

Valve Clearance
60
Servicing Your Honda
Camshaft Holder Assembly
1. Install the newly selected shims (1) on the
valve spring retainers (2).
Do not let the shims fall into the crankcase.
NOTICE
(1) shims
(2) valve spring retainers
2. Apply molybdenum disulfide oil (a mixture of
1/2 engine oil and 1/2 molybdenum disulfide
grease (containing more than 3%
molybdenum disulfide additive)) to the
camshaft and outer surface of the each valve
lifters (3).
(1)
(2)
(2)
3. Install the valve lifters into the camshaft
holder assembly (4).
(3) valve lifters
(4) camshaft holder assembly
(4)
(3)
4. Install the camshaft holder assembly onto the
cylinder head with the intake cam lobes (5)
facing up as illustrated below.
Apply the oil to the camshaft holder assembly
bolt threads and seating surface.
Tighen the camshaft holder assembly bolts (6)
to the specified torque:
10 lbf·ft (14 N·m, 1.4 kgf·m)
Tighten the camshaft holder assembly bolts in a
criss-cross pattern in 2 or 3 steps.
(6)
(4)
(5)
Exhaust side
(4) camshaft holder assembly
(5) intake cam lobes
(6) camshaft holder assembly bolts