2004 Kawasaki KVF750 4x4, Service Manual., Page 147Get this manual
5-34 ENGINE TOP END Valves
Valve Seat Inspection
Remove the valve (see Valve Removal)the valve [B] valve seating Check the seat [C]surface [A] between and valve
Coat the valve seat with machinist's dyePush the valve into the guideRotate the valve against the seat with lapping toolPull the valve out, and check the seating pattern on the
valve headIt must be the correct width and even all the way aroundMeasure the outside diameter [D] of the seating pattern on the valve seatIf the outside diameter of the valve seating pattern is too large or too small, repair the seat (see Valve Seat Repair)Valve Seating Surface Outside Diameter Exhaust: 25.2 25.4 mm (0.992 1.000 in Inlet: 29.4 29.5 mm (1.157 1.165 in
The valve stem and guide must be in good condition, or this check will not be valid