1986-1988 Honda TRX 200SX Fourtrax Service Manual, Page 73Get this manual
CYLINDERPISTON Inspect the top of the cylinder fo warpage
SERVICE LIMIT.10 mm (0 .004 In)
REMOVAL
Remove the piston pm clip ith pliers
Do not let th lips fall into th cra kcase
Press the piston pm ou of the pis ton and remove he piston
Remove the piston rings