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1
(1) Tappet covers
(2) Gasket
(3) Cylinder head left side cover
Remove the timing hole cap (4) with
•
O-ring. 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.
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 (7) 360 clockwise and re-align
the 'T' mark with the index mark.
2
O
4
3
(4) Timing hole cap
(5) 'T' mark
(6) Index mark
(7) Cam sprocket
(8) Special tool
Check the clearance by inserting the feeler
•
gauge (9) between the adjusting screw
(10) and valve stem (11).
Standard clearance
Intake: 0.10 mm
Exhaust: 0.10 mm
Adjust by loosening the lock nut (12) and
•
turning the adjusting screw until there is a
slight drag on the feeler gauge.
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7
6
5
8
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