Honda CRF250R 2005 Owner's Manual page 65

6. Apply grease to the set rings and install it
onto the camshaft holders (10).
Install the cam shaft holders onto the cylinder
head with the intake cam lobes (12) facing up
as illustrated below.
Apply the oil to the camshaft holder bolt
threads and seating surface.
Tighten the camshaft holder bolts (11) to the
specified torque:
12 lbf·ft (16 N·m, 1.6 kgf·m)
Tighten the camshaft holder bolts in a criss-cross
pattern in 2 or 3 steps.
(11)
(12)
(10) camshaft holders
(11) camshaft holder bolts
(12) intake cam lobes
7. Remove the stopper tool (13) from the cam
chain tensioner lifter.
(10)
(13) stopper tool
8. Install the new sealing washer (14) and cam
chain tensioner lifter cover bolt (15).
(11)
(14) sealing washer
(15) cam chain tensioner lifter cover bolt
(13)
(15)
(14)
Valve Clearance
9. Rotate the camshaft by rotating the crankshaft
clockwise several times.
10. Insert the feeler gauge (16) between the intake
valve lifter and cam lobe.
If the feeler gauge cannot be inserted, the
shim is caught between the valve lifter and
the valve retainer. Remove the camshaft
holders, place the shim correctly, and reinstall
the camshaft holders.
Valve Clearances:
IN: 0.005 ± 0.001 in (0.12 ± 0.03 mm)
EX: 0.011 ± 0.001 in (0.28 ± 0.03 mm)
(16)
(16) feeler gauge
Servicing Your Honda
(16)
(cont'd)
61