SANYANG INDUSTRY CO. XS125-K Service Manual page 19

2.INSPECTION/ADJUSTMENT
VALVE CLEARANCE
NOTE:
Inspect and adjust the valve clearance while the
engine is cold.
Remove the timing inspection hole cap and crankshaft
hole cap.
Rotate the generator rotor counterclockwise and align
the " T" mark on the generator rotor with the index mark
in the left crankcase
(piston must be at T.D.C.of the compression
stroke).
Inspect the intake and exhaust valve clearance by
inserting a feeler gauge between the adjusting screw
and valve stem,valve clearance:
Intake: 0.10mm
Exhaust: 0.15mm
Adjust by loosening the lock nut and turning the
adjusting screw until there is a slight drag in the feeler
gauge.
NOTE:
Inspect the valve clearance again after tightened the
lock nut.
LOCK NUT
ALIGN
MARK
ALIGN
MARK
ADJUSTING
SCREW
2-7