1984 Official Honda TRX200 Shop Manual, Page 80Get this manual
r::ii] HONDA CYll NDE PISTON
Insert each piston ring squarely into th cy linder an measure the ring end gapNOTEPush the rings into the cyl inder with the top of the piston to be sure they ar squarely in the cyl inderSERVICE LIMIT: TOPSECOND0.50 mm (0.02 in)
Measure the diameter of th piston 10 mm from the bottom an 90 to th piston pin hole Calcu late the pistonto cyl inde clearance Refer to page 72 for cylinder bore inspectionSERVICE LIMIT64.90 mm (2.555 in)