2003-2005 Suzuki LT-A500F Service Manual, Page 74Get this manual

2003-2005 Suzuki LT-A500F Service Manual, Page 74

If the valve seat is pitted or burned, use the 45 cutter to condition the seat some moreNOTE: Cut only the minimum amount
If the contact area is too high on the valve, or if it is too wide, use the 15 cutter to lower and narrow the contact area
The contact area too high and too wide on face of valve FINAL SEAT CUT If the contact area is too low or too narrow, use