Honda Motorcycle Service Manual page 36

MAINTENANCE
The valve clearance adjustment is correct when the specified
feeler gauge fits snugly, but the next size larger feeler gauge
will not fit in.
NOTE
1
.
On motorcvcles that have a decomoression mechanism
1
which lifts the valve when starring the engine, the ad-
justment for decompression must be carried out first in
order to provide an accurate valve clearance inspection.
Valve clearance inspection on engines with common, screw-
type adjusters is measured by inserting a feeler gauge directly
between the end of valve stem and the adjusting screw.
In the case of one-sided ball-joint type engines, the clearance
is measured by inserting the feeier gauge between the rocker
arm and the cam.
In the case of valve lifters in direct push-type engines, the
clearance between the cam lobe and lifter or shim is measured
with a feeler gauge.
If adjustment is needed, loosen the lock nut and the adjusting
screw and insert the proper dimension feeler gauge. Proper in-
take and exhaust valve clearance specifications are given in
the Model Specific manual.
Turn the adjusting screw and adjust the clearance until the in-
serted feeler gauge can only be pulled out with a little
difficulty.
Leaving the feeler gauge inserted, and being careful not to turn
the adjusting screw, tighten the lock nut to the designated
torque.
CAUTION
/
.
An improperly tightened lock nut may loosen and cause
1
. . . -
engine damage.
,
.
Be sure to use any special tools specified for valve adjustment.
1
Date of Issue : March.
1995
2-10
0
HONOA MOTOR CO..LTD.