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Kawasaki Z250 1981 Service Manual Page 31

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•Tighten both chain adjuster
locknuts.
•Tighten the axle
nut
to 9.0
kg·m
(65
ft- lbs)
of
torque.
•Rotate the wheel, measure the vertical movement again
at
the tightest
position, and readjust
if
necessary.
•Tighten the
rear
torque
link
nut
to
3.0 kg·m
(22 ft-lbs)
of torque.
•Adjust
the
rear brake.
BRAKES (Disc
Type)
Front Brake
Disc
and disc
pad
wear is automatically compensated
for
and
has
no
effect
on the brake
lever
ac tion.
There
are
no
parts
that require
ad justment
on
the
front
brake.
However
if
the brake leve-r
has
a
soft
or
"spongy"
feeling,
check
the
brake
fluid level
in
the
master cy
linder
and
bleed
the
air
from the brake
line
(Pg.
146)
.
Rear Brake
Disc
and
disc pad wear
is automatically compensated
for and has no effect
on
brake pedal action. However,
the brake pedal may
occasionally
require adjustment
due to wear of
the
brake pedal pivot, or
in
the case of
disassembly. Excessive
play
must be taken
up to
keep
the braking action
lag
time
to
a minimum, but enough
play must be
left
to ensure a full braking stroke.
I
WARNING
I
A~jus~
the
rear brake pedal ~l.ay
after
..,. - - - - • - adJustmg the brake pedal pos1t1on.
In-
correct adjustment with
insufficient
free play can cause
brake heating, skidding, or loss of control.
NOTE: Check
the
brake
fluid
level in accordance
with
the Periodic Maintenance
Chart
(Pg.
10). Before adjust-
ing
the
brake, be sure
that
all air
is
bled
from
the brake
line
(Pg.
146).
Brake Pedal Position
•When
the brake
pedal
is
in
its
rest
position,
it
should
be
O
~
30
mm lower than
the
top
of
the
footpeg.
·:::,
r---~~-
. ..
.
·.·
.
·~,c
~.~
••
:,,;,.;,-Po")/
A. 0-30
mm
•If it
is too
high; first loosen
the brake push rod lock-
nut, slide down
the
push rod dust
cover,
and shorten
the push
rod to give
the
brake pedal plenty of play.
Then
adjust
the
brake pedal position.
•If
it
is too
low; loosen
the locknut,
turn
the brake
pedal
adjusting
bolt to obtain
the
correct pedal posi·
tion, and then tighten the locknut.
ADJUSTMENT-CHASSIS 25
A. Adjusting Bolt
B. Locknut
•Adjust
the rear brake
pedal
play.
Rear Brake Pedal Play
•The brake pedal should have 8
~
10
mm of
free
play
from
the
rest
position
before the push
rod
contacts
the master
cylinder
piston.
I
WARN I NG
I
lack of free play may
_cause
t~e brake
..,. _ _ _ _._ pads to drag on the disc causing heat
build-up, possible brake
lock-up
and loss of control.
·
•To adjust play, loosen the
push rod
locknut
and
turn
the push
rod.
Tighten the
locknut.
Feel for
restriction
of the push rod's side play to identify when the
push
rod contacts the piston.
A. Push Rod
B.
Locknut
•Check
the rear
brake
light
switch
(Pg. 26).
•Check for brake drag.
•Check braking effectiveness.

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Kz350 1981

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