1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 142Get this manual
CYLINDER HEAD1CVUNDE,RPISTON Inspect the top of the cyl in der for wa rpa ge
SIERVICE UM1T: 010 mm IOJ)o4 inl'
Do not damage tile
piston rings GClring
removal
Remove the piston rings
Remove any carbon deposits rom the piston ring groovesusing an old pi,ston ri ng as shown