Specifications

G. Check cylinder and piston:
1.Check the wearing and damage condition on the contact surface of the cylinder and piston.
2.Clean out the carbon on the cylinder exhausting port.
3.Cylinder bore measurement:
(1)Measure each point (A)(B)(C) orderly, and in X.Y. axis to find the smallest value.
(2)Limit of use: 50cc-change it when over 40.050mm
Be careful not to scratch the inner
Surface of cylinder.