E-Z-GO Engine, Shop Rebuild Manual

Page: 36 / 100

ENGINE MEASUREMENTS
Page C-6
Kawasaki Engine Shop Rebuild Manual
To make the 32° grind, fit a 32° cutter to the holder, and slide it
into the valve guide.
1. Grind the seat at a 32° angle until the seat O.D. is
within the specified range.
2. Turn the holder one turn at a time while pressing
down very lightly. Check the seat after each turn.
The 32° cutter removes material very quickly.
3. Check the seat outside diameter frequently to pre-
vent overgrinding.
I. After making the 32° grind, return to the seat O.D.
measurement step above.
J. Lap the valve to the seat, once the seat width and
O.D. are within the ranges specified above.
K. Put a little coarse grinding compound on the face of
the valve in a number of places around the valve
head.
L. Spin the valve against the seat until the grinding com-
pound produces a smooth, matched surface on both
the seat and the valve.
M. Repeat the process with a fine grinding compound.
[A] Lapping Tool
[B] Valve Seat
[C] Valve
N. The seating area should be marked about in the mid-
dle of the valve face.
O. If the seat area is not in the right place on the valve,
check to be sure the valve is the correct part. If it is, it
may have been refaced too much; replace it.
Be sure to remove all grinding compound before assembly
P. When the engine is assembled, be sure to adjust the
valve clearances.