2004 Bombardier Quest/Traxter Series Shop Manual, Page 141Get this manual
Subsection 08
Section 03 ENGINE QUEST (CYLINDER AND CYLINDER HEAD)
Valve Face and Seat
V01C1HA R610motr127A
1Valve seat 2Exhaust valve contaminated area 3Valve face (contact surface to valve seat)
AValve face contact width BValve seat contact width