Generic Race 50, Service Manual, Page: 168 / 209

167
Measure the outer diameter of the piston.
*Attention: The measuring position and the piston pin form an angle of 90 degree, some 11.5mm below the skirt
of piston.
Allowable limit
：39.9mm.
Inspect the abrasion and wear of the cylinder inner wall.
*Attention: Measure the bore diameter of the cylinder at the upper, middle and lower part when keeping an angle
of 90 degree from the piston pin.
Allowable limit
：
40.05mm.
Measure the clearance of the cylinder and piston and take the maximal value as final one.
Allowable limit
：
0.1mm.
测试计