E-Z-GO Engine, Shop Rebuild Manual, Page: 34 / 100

ENGINE MEASUREMENTS
Page C-4
Kawasaki Engine Shop Rebuild Manual
VALVES
Inspect Valve Clearance
A. Refer to the Specifications table in Section A.
Adjust Valve Clearance
A. Refer to the Specifications table in Section A.
Inspect Valve Seat
A. Remove the valve. See Remove Valve Mechanism in
Section A.
B.
Check the valve seating surface [A] between the
valve [B] and valve seat [C].
C. Coat the valve seat with machinist’s dye.
D. Push the valve into the guide.
E. Rotate the valve against the seat with a lapping tool.
F. Pull the valve out, and check the seating pattern on
the valve head. It must be the correct width and even
all the way around.
The valve stem and guide must be in good condition, or this
check will not be valid.
G. If the valve seating pattern is not correct, repair the
seat.
H. Measure the outside diameter [D] of the seating pat-
tern on the valve seat.
I. If the outside diameter of the valve seating pattern is
too large or too small, repair the seat.
Valve Seating Surface Outside Diameter
Inlet 32.8 mm (1.29 in.)
Exhaust 27.6 mm (1.09 in.)
J. Measure the seat width [E] of the portion where there
is no build-up carbon (white portion) of the valve seat
with a vernier caliper.
•
Good [F]
•
Too Wide [G]
•
Too Narrow [H]
•
Uneven [J]
K. If the width is too wide, too narrow or uneven, repair
the seat (see Repair Valve Seat).
Valve Seating Surface Width Standard
Inlet 1.1 ~ 1.7 mm (0.043 ~ 0.067 in.)
Exhaust 1.0 ~ 1.5 mm (0.039 ~ 0.059 in.)
Repair Valve Seat
A. Follow the manufacturer’s instructions for use of valve
seat cutters.
Special Tools
Valve Seat Cutter, 45° - 35
E-Z-GO Part No. 608666
Valve Seat Cutter, 32° - 38.5
E-Z-GO Part No. 608668
Valve Seat Cutter, 45° - 32
E-Z-GO Part No. 608665
Valve Seat Cutter, 32° - 35
E-Z-GO Part No. 608667
Valve Seat Cutter Holder, 7
E-Z-GO Part No. 608669
Valve Seat Cutter Holder Bar
E-Z-GO Part No. 608670