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148 MAINTENANCE-CHASSIS
Table J12
Master Cylinder Parts
Cylinder Inside Diameter
Piston Outside Diameter
Front
Primary Cup Diameter
Secondary Cup
Diameter
Spring Free Length
Cylinder Inside Diameter
Piston Outside Diameter
Rear
~Primary Cup Diameter
Secondary Cup
Diameter
Spring Free
Length
it. When
inserting
the cup into the
cylinder,
see that
it
is slightly
larger than the
cylinder (standard values
given
in the
table).
If fluid leakage is noted at
the
brake lever or
pedal,
the cups should be
replaced.
(The secondary cup
is
part to
the
piston assembly.
Replace the piston if the secondary cup
requires
replacement}.
A.
Primary Cup
C. Piston
B. Secondary Cup
•Check
that
the spring is
not
damaged and
is not shorter
than the service limit.
•Replace the dust
seal
if damaged.
Caliper parts wear
Inspect the
pads for wear. If either of the left and
right
pads
is
worn down
th
rough
the stepped portion,
or thickness of
it
is
less
than 1 mm,
replace
both pads
as a
set
Standard
Service Limit
14.000~14.063
mm
14.08 mm
13.957~13.984 mm
13.90 mm
14.2~14.6 mm
14.0
mm
14.65~15.15 mm
14.50mm
42.8~46.8 mm
40.7 mm
14.000~14.043
mm
14.08mm
- - ·
13.957~13.984 mm
13.90 mm
14.6.s·~
1
5.15 mm
14.5mm
14.65~15.15 mm
14.5 mm
48.7-52.7 mm
46.3 mm
If any grease or
oil
spills on
the
pads, wash it off with
trichloroethylene
or a
high
flash-point solvent. Do
not
use one which will leave an oily residue.
If the oil
cannot be thoroughly clean off,
replace
the pads.
The
fluid
seal around the piston maintains
the
prop-
er pad/disc clearance.
If
th is
seal is
not satisfactory,
pad wear will increase, and constant pad drag on
the
disc
will
raise
brake
and
brake
flu
id
temperature.
Replace
the
fluid seals
under
any of the following
conditions:
(a}
fluid
leakage
around the pad; (b) brakes
overheat; (c} there is a
large
difference
in
left
and right
pa9 wear;
(d) the
seal is stuck to the piston. If
th'e flu
id
seal
is
replaced, replace the
dust
seal as well. Also, re-
place
all seals
every other
time
the pads are changed.
A.
Stepped Portion
Rear
Disc
Brake Pad
Usable Range
i
1

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   Also See for Kawasaki Z250 1981

This manual is also suitable for:

Kz350 1981

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