YM D 3100 Series - Radiator Water Replacement

Disassemble the upper cover of cylinder head. Adjust valve and rocker arm gaps.
When engine is hot:
Intake : 0.25 mm
Exhaust : 0.35 mm
When engine is cold :
Intake : 0.30 mm
Exhaust : 0.40 mm
WARNING : Adjustment of valves by unexperienced personel may cause serious
damages to your engine. !
14
VALVES