2004 Arctic Cat ATVs factory service and repair manual, Page 212Get this manual
Valve SeatIGuide 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 specificationsIRepeat procedure on the remaining intake valve,
45' Grind
Tool Purpose
45' Cutter
seatong area smooth and round
Tool Purpse
vernier Calipers Check seat outs,d d,ame,er aga,nst spec,l,cat,o" Results
Purpose
45- Grind cutter Increase o",s,de dameterof seat area sDec,f,cat,o"
Machinist's dye on seat 15' Grind Purpose