36
Ÿ Remove the timing hole cap (4). Rotate the
cam sprocket (7) clockwise using the
special tool (8) until the ‘T’ mark (5) on the
flywheel coincides with the index mark (6)
on the left crankcase cover. In this position,
the piston will either be on the compression
or exhaust stroke.
6
5
4
(4) Timing hole cap (5) 'T' mark
(6) Index mark
7
8
(7) Cam sprocket (8) Special tool
The adjustment must be made when the
piston is at top dead center and both the inlet
and exhaust valves are closed.
Intake : 0.10 mm
tight, the valves are open, rotate the cam
O
sprocket (7) 360 clockwise and realign the
'T' mark with the index mark.
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
Standard clearance (cold condition)
Ÿ Check the clearance by inserting the feeler
gauge (9) between the adjusting screw
(10) and valve stem.
Exhaust: 0.12 mm
9
10
11
(9) Feeler gauge (10) Adjusting screw
(11) Lock nut
•
Adjust by loosening the lock nut (11) and
turning the adjusting screw (10) until there
is a slight drag on the feeler gauge (9).
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