1998-2004 Honda Foreman 450 factory service manual, Page 142Get this manual
CYLINDER HEADCYLINDERPISTON VALVEVALVE GUIDE Inspect each valve for bending, burning or abnormal stem wearCheck valve movement in the guide, measure and record each valve stem 0.0 SERVICE LIMITS: IN: 5.45 mm (0.215 in) EX: 5.43 mm (0.214 in)
d Ream he guides to remove any carboneposits before checking clearancesInsert he reamer from the rocker arm side of the head and always rotate the reamer clockwiseTOOL:
Valve guide reamer,
07984-2000001 or 07984-2000000 (U.S.Aonly)
Measure and record each valve guide 1.0SERVICE LIMIT: INEX: 5.525 mm (0.2175 in) Subtract each valve stem 0.0from the corresponding guide 1.0to obtain the stem-to-guide clearanceSERVICE LIMITS: IN: 0.12 mm (0.005 in) EX: 0.14 mm (0.006 in)