Jianshe JS125-6B Maintenance Manual page 41

PERIODIC INSPECTION AND ADJUSTMENT
4. Turn around the rotor in counter clockwise direction,
and turn the mark
a place, which is in alignment with the mark
dead center of the crankcase cover.
5. Check
Valve clearance
IN (intake): 0.08 0.12 mm
EX (exhaust):0.10 0.14 mm
Below standard value
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Adjustment steps
Loosen the fixed nut
Insert a feeler gauge
Install the valve adjusting tool
Turn the adjuster to a standard value. In order to
avoid it turn round together, the fixed screw cap is
fixed with the adjusting tool and then locked.
Lock torque of the fixed screw cap
Confirm the valve clearance, if it is not in line with
the standard value, adjusts it once more.
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31
of top dead center of the rotor to
Standard valve clearance
adjust
on the adjuster
Valve adjusting tool
0.75kgf.m (7.5 N.m)
of top