2005 Kawasaki KAF620 Mule 3010 Trans 4x4 Service Manual, Page 113Get this manual
5-12 ENGINE TOP END Valves
Seat Cutter Operating Cares 1The valve seat cutter [A] is designed only for valve seat repairTherefore the cutter must not be used for other purposes2Do not drop or hit the valve seat cutter, or the diamond particles may fall off3Do not fail to apply engine oil to the valve seat cutter before grinding the seat surfaceAlso wash off ground particles sticking to the cutter with washing oilSpecial ToolsValve Seat Cutter Holder, 6: 57001-1360 [B] Valve Seat Cutter Holder Bar: 57001-1128 [C]