2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 327Get this manual
Quality of the image is intentionally reduced!
Valve SeatGuide Servicing Flow Chart
Grinding Valve Seats
NOTE: If the valve seat is beyond servicing, the cylinder head must be replaced
2 Lubricate each valve stem with light oil;