2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 142Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 142

Grinding Valve Seats NOTE: If the valve seat is beyond servicing, the cylinder head must be replaced 1Insert an exhaust valve
Repeat procedure on the remaining exhaust valveCC139D Valve SeatGuide Servicing Flow Chart 2Insert an intake valve seat pilot
shaft into one of the intake valve guidesSlide the intake valve seat grinding tool onto the pilot shaft; then using light
pressure on driver handle and deep socket, grind the intake valve seat until within specificationsNOTE: Repeat procedure
on the remaining intake valve Lapping Valves NOTE: Do not grind the valvesIf valve is damaged, it must be replaced ATV-0107