1995-2003 Honda Foreman TRX400FW TRX400 TRX 400 400FW Service Manual, Page 127Get this manual
CYliNDER HEAD CYLINDER PISTON PISTON INSPECTION
R Iny c;a,bon dIposils from Ihe plSlon "nllll'_' uli"1l'" old plSlon ,inll as showrl
T''''l)OlIrity 'nmilihe piston ,inllS 10 thei' p'oper position with Th' mlrt t.ciftg upM"Mlre the plllon rlng to-riftg II'DOVI dU'I'- WIth the 1"11' pusn.d InlO the lI'ooves
SERVICE UMITS: TOj): 0.09 mm 10.00 In) Second: 0.09 mm 10.001nl