Valve Clearance Inspection; Valve Clearance Adjustment; Valve Clearance - Honda CRF110F Service Manual

VALVE CLEARANCE
INSPECTION
Inspect and adjust
Remove the cylinder head cover (page 8-6).
the valve clearance
while the engine is
cold (be/ow 35' C/
9S' F)
Remove the crankshaft hole cap and liming hole cap
from the left crankcase cover.
Rotate the crankshaft [1J counterclockwise unl illhe
"r
mark [2] on the flywheel is aligned with the index notch
13J on the left crankcase cover.
Make sura the piston is at TDC (Top Dead Center) on
the compression stroke.
Check the valve clearance by inserting a feeler gauge
, - - --,r-- --,
[1) between the valve adjusting screw
121
and valve
stem.
VALVE CLEARANCE :
IN/EX : 0.10
t
0.02 mm (0.004
±
0.001 in)
ADJUSTMENT
Adjust by loosening the lock nut 111 and turning the ,----::::---
adjusting screw (2) until there is a slight drag on the
~
feeler gauge.
TOOLS : [3J
[3) Val ve adjuster B 07908 ·KE90000 or
07908-KE90200 (U .S.A . only)
Apply engine oil to the lock nul.
Hold the adjusting screw and tighten the lock nut to the
specified torque.
TORQUE : 9 N·m (0.9 kgf·m, 6.6Ibf·ft)
After tightening the valve adjuster lock nut, recheck the
valve dearance.
Apply engine oil to a new crankshaft. hole cap a-ring
and timing hole cap D-ring , then install them to the
caps.
Install and tighten the crankshaft hole cap and timing
hole cap to the specified torque.
TORQUE:
Crankshaft hole cap 8 N·m (0.8 kgf·m, 5.9 Ibf-ft)
Timln9 hole cap 10 N·m (1 .0 kgf·m, 7Ibf-ft)
Install the cylinder head cover (page 8·7).
MAINTENANCE
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