13.4 Piston
13.4.1 Disassembly
Remove the piston pin retainer.
Attentions: Do not drop the retainer to the crankcase.
Remove the piston pin and to remove the piston.
Check piston, piston pin and piston ring
Remove piston ring
Attentions: do not break or damage piston ring
To remove the carbon deposits in the piston ring groove
Remove piston rings and put them in the bottom of the
cylinder
Attentions:press the piston ring into the cylinder with piston
head
Measure the end gap of piston ring
Allowable limit: 0.05mm
Measure the inside diameter of piston pin hole
Allowable limit: 12.04mm