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Master Cylinder Assembly Notes; Master Cylinder Inspection (visual Inspection) - Kawasaki KX125 1990 Service Manual

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10-12 BRAKES
Master Cylinder Assembly Notes
-
Assembly is the reverse of
disassembly.
-
Clean
all parts with brake
fluid
or
alcohol, and apply
brake fluid to the inner
surface
of the
cylinder
before
assembly.
CAUTION
Except
for
the
disc pads and disc
,
usa only disc
brake fluid
,
Isopropyl
aIcoho'.
or ethyl
alco~
.
for
cleaning
brake parts
.
00 not usa any other
flukf for
cleaning these part
.
GasoIne,
e
ngine
oil,
or any
other petroteum distllate
wi
cause deterioration of
the
rubber parts.
011
spilled
on
any
part will be
dlfficuh to wash off comjMtely. and
will
eventual-
ty deteriorate the rubber used in the disc
brake.
-Take care not to
damage the
inner
surface
of the
cylinder, or the
piston.
-Tighten the brake lever pivot bolt locknut
securely,
Master
Cylinder
Inspection
(Visual
Inspection)
Disassemble the front and
rear master
cylinders.
Check
that
there are no
scratches,
rust or pitting
on the inside of each master
cylinder
and on the
outside of each
piston.
*
If
a
master
cylinder
or
piston shows any damage,
replace
them.
Inspect the primary
cups
and secondary
cups.
*
If a cup is worn, damaged, softened (rottedl or
swollen, the piston assembly should be
replaced
to
renew
the
cups.
*
If fluid
leakage
is
noted at the
brake
lever, the piston
assembly shou
ld
be
replaced
to renew
the
cup.
Check the dust covers for
damage.
*
If they are damaged, replace
them.
Check that the relief and supply
ports
are not
plugged.
*
If
the
small
relief
port
becomes plugged, the brake
pads will drag
00
the
disc.
Blow the
ports
clean
with
compressed
air.
Check the piston return
springs
for any
damage.
*
If
a
spring
is
damaged,
replace
the
piston
assembly.
Check the O-ring in the rear master cylinder for
damage.
*
If a CHing
is
damaged, replace
it
Front and
Rear
Master
C~
1.
Reservoir
2.
Diaphragm
3.
Relief
Port
4.
Supply Port
5.
Cylinder
6.
Return Spring
7.
Primary
Cup
8.
Piston
9.
Secondary Cup
10.
Washer
11
.
Circlip
12.
Oust
Cover
13.
Brake
lever
14.
Push
Rod

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