1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 85Get this manual
CYLINDERPISTON
PISTON REMOVAL
Stuff shop towel into the crankcaseRemove Ihe piston pin ips with needle nose pliers
Do not let the clips fall into the crankcase
Press the piston in out of the pistonRemove he piston
PISTON PIN CLIP
PISTON PI STON RI NG INSPE CT ION
Measure the piston ring la-groove clearance ,
SERVICE LIMITS :