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Kawasaki Z250 1981 Service Manual Page 125

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Table of Contents
A. Tang
NOTE: Service
fuel level
is defined as
the
vertical
dis-
tance from
the
bottom
edge
of
the
carburetor
body
to
the
surface
of
the fuel in the float
chamber.
Cleaning and replacement
If
dirt gets between the
valve needle
and the
seat,
the
valve
needle.
will not close and fuel will overflow.
Overflow
can
also result
if the needle
and seat become
worn.
If
the
need
le
sticks
closed, no
fuel
will
flow
into
the carburetor.
Remove
the
carbu
retor,
and take
off the float
bowl
and float.
Wash
the bowl
and
float parts
in
a high
flash-point
solvent. Use
carburetor cleaner
if
necessary
to wash the float
bowl and metal
parts.
Blow
out
the
fuel overflow pipe
with
compressed air.
Examine the
float,
and rep
I
ace
if
damaged.
If the
needle is worn
as
shown
in
the diagram, replace
the
needle
and seat
as
a
set.
Valve Needle
Good
ROCKER ARMS, SHAFTS
Rocker arm/shaft wear
Bad
Visually
inspect
where
the
cam and valve stem wear
on
each
arm
.
If
there
is
any
damage or
uneven
wear,
replace the
arm.
MAINTENANCE-ENGINE
119
Measu re
the inside
diameter of each
arm with
a
cyl inder gauge.
If
it
exceeds
the service
limit,
rep lace
the arm.
Measure
the diameter of
each
shaft where the arm
fits
.
If the
diameter
is
less
than the
service limit,
replace
the shaft.
Table H6
Rocker Arm
Inside
Diameter
Standard
Service
Limit
13.000-13.018 mm
13.05
mm
Table
H7
Rocker Shaft Diameter
Standard
12.976-12.994
mm
CAMSHAFT
Cam wear
I
Service
Limi
t
I
12.95
mm
Remove the
camshaft,
and
measure the height of
each cam
with
a micrometer.
If
the
cams are worn
down
past the
service
limit, replace the
camshaft.
Cam Height
Measurement
Cam
Height
Table H8
Cam Height
Standard
Service
Limit
Inlet
40.201-40.341 mm
40.110 mm
Ex.haust
39.83
1-39.971
mm
39.740
mm

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Kz350 1981

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