2001-2003 Honda TRX500FA Factory Service Manual, Page 140Get this manual
CYLINDER HEADVAlVE The valve cannot be Remove he valve and inspect the valve seat facegroundIf the VcI've The valve seat contact should be within the specified face 's burned Of width and even all around he circumferencebadly ""'OI'Tl Of If It
contact the sear STANDARD: 1.0-1 .1 mrn (0.0390.043 inreplace SERVICE LIMIT: 1.4 mm 0.06 in )
the valve
If th valv seat idt is not within speci fic at io n, rerece the valve seat
J"SEAT WI DTH