4-1
ZHEJIANG KAYO MOTOR CO., LTD.
Valve stem
If stem worn, bent or damaged, replace.
Measure outer diameter. Air intake 4.9mm exhaust 4.9mm
Valve guide pipe
Clean carbon deposit before measure pipe inner diameter with a reamer (5mm, limitation
is 5.03mm).
Clearance between valve stem and pipe
:
Limitation: air intake 0.08mm exhaust 0.10mm
Adjustment
Replace pipe, if the clearance still incorrect, replace valve.