1986-1988 Honda TRX 200SX Fourtrax Service Manual, Page 74Get this manual
CYLINDER PISTON Insert each pis on ring squa rely into the cylinde and measure the ring end gap
Push the rings into th cylind er wi the tO of the pis on to be sure they are squarely in the cylinde r
SERVICE LIMITpsecond.50 mm (0 .020 in )
Measure th diame ter of ile iston 10 mm from the bottom and 90! to the pis ton pin hole
SERVIC LIMIT: 64.90 mm 12 .55 in )
Ca lcu late the piston-to-cylinder learance!Refer to page 7-2 fo cylinder bore inspect ion