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Kawasaki KZ1300-A1 Quick Reference Manual Page 174

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MAINTENANCE--ENGINE
the mating surface.
Replace
the cylinder head if the
mating surface is
badly
damaged.
A.
Straightedge
B.
Thickneu
Gauge
Table H16
Cylinder
Head Warp
Service Limit
0.05 mm
Combustion
chamber
volume measurement
The
combustion
chamber volume should
be
measured
any time that com
pression measurement
results in com-
pression pressures well below or above the standard
.
NOTES:
1.
Another person will be needed to help expel air
bubbles out of the combustion chamber.
2. Prepare a piece of transparent plastic
plate
wh ich has
a flat surface and two holes about
35
mm apart in
its center portion. One hole should be about 6 mm
in diameter, the other about 3 mm in diameter. The
plate must be oil
resistant,
about 120 mm
square,
and at least 3 mm thick.
Plastic
Measuring Plate
(
H 30)
I
I
1
1
I
/
""
"
,
--
--
...
"
, ,
\
,
-
~~out
35
mm
f-
I
\
I
.....
/
.....
"
.....
, /
............
_--"'"
\
\
I
I
I
3.
Obtain a bu rette or syringe which is calibrated at
one-cc or smaller
graduations.
Fill it with th in oil.
Prior
to the combustion chamber volume measure-
ment, clean off any carbon in the combustion chamber,
and remove any gasket flakes
on
the cylinder head
mating
surface.
The standard spark
plug
should
be
in
-
stalled in the chamber to be measured.
NOTE:
The valves must seat well to prevent the oil
from leaking out.
Apply a th in coat of grease to the cylinder head
mating su rface and place the plastic plate over the
cylinder head combustion chamber, fitting its small
hole near the edge of the combustion chamber.
Place
the cy linder head on a level
surface.
Through
the
large
hole,
fill the combustion chamber with light
oil such as 2-stroke oil until the chamber is completely
but not overly filled.
Tilt
the
cylinder head slightly
so that air bubbles come out through the small hole.
The oil should just rise to the bottom edge of the holes
in the plate.
The amount of oil used to fill the chamber is the
combustion chambe
r
volume.
Table H17
Combustion Chamber Volume
Standard
27.1-27.9 cc
If the combustion chamber volume is too small, it
is possible that the cyl inder head was
modified
for
higher compression. Make sure that all carbon
deposits
have been cleaned out of the
chamber.
If the combustion chamber volume is too
large,
it
is
possible
that the valves and valve seats have
been
resurfaced so much that the volume is
increased.
Make
174

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