1999-2000 Bombardier Traxter ATV Factory Service Manual, Page 61Get this manual
Section 03 ENGINE Subsection 06 (CYLINDER AND HEAD)
Installation
For installation, reverse the removal procedure
Measure valve seat width, using caliperVALVE SEAT CONTACT WIDTH mm (in) SERVICE LIMIT Exhaust Intake mm (0.078 in) 1.8 mm (0.07 in)
Removal
Remove valve spring no4Push the valve stem then pull valve out of valve guide
Inspection
Valve Inspect valve surface, check for abnormal stem wear and bendingIf so, replace by new oneValve Stem and Valve Guide Clearance Check valve stem and valve guide for wear or friction surfaces, if so, replace partsMeasure valve stem and valve guide in three places, using micrometer and small hole gaugeNOTE: Clean valve guide to remove carbon deposits before measuringVALVE STEM DIAMETER mm (in) SERVICE LIMIT Exhaust Intake 6.95 mm (0.274 in)
If valve seat contact width is too wide, too narrow or has spots, the seat must be ground or cylinder head replaced