36
(4) Timing hole cap (5) 'T' mark (6) Index mark
(7) Cam sprocket (8) Special tool
4
6
7
8
on the left crankcase cover. In this position
the piston will either be on the compression
or exhaust stroke. The adjustment must be
made when the piston is at Top Dead
Center and both the inlet and exhaust valves
are closed. This condition can be
determined by moving the rocker arms. If
they are free, it is an indication that the
valves are closed and the piston is in
compression stroke. If they are tight, the
valves are open, rotate the cam sprocket
O
(7) 360 clockwise and re-align the 'T'
mark with the index mark.
Standard clearance
Intake: 0.10 mm
• Check the clearance by inserting the feeler
gauge (9) between the adjusting screw
(10) and valve stem (11).
Exhaust: 0.10 mm
(9) Feeler gauge (10) Adjusting screw
(11) Valve stem (12) Lock nut
•
After tightening the lock nut, check again
the clearance.
•
Install all parts in the reverse order of
disassembly.
•
Adjust by loosening the lock nut (12) and
turning the adjusting screw until there is a
slight drag on the feeler gauge.
Before inserting the feeler gauge, smear a bit
of engine oil on the feeler gauge to avoid
damage to the feeler gauge.
NOTE
CLUTCH LEVER FREE PLAY
Adjustment
Clutch adjustment may be required if the
vehicle stalls when shifting into gear or tends
to creep or if the clutch slips, causing
acceleration to lag behind engine speed.
Normal clutch lever free play (1) is 10-20 mm
at the lever (2).
12
10
9
11
5
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