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Table of Contents
150 MAINTENANCE-CHASSIS
shafts are damaged, replace
the
shafts and
the caliper
holder.
Brake line damage
The
high
pressure inside
the
brake line can
cause
flu
id to
leak or the hose
to
burst
if
the line is
not
properly
maintained.
Bend and
twist the
rubber hose while examining
it.
Replace
it if
any cracks
or
bu
lges
are
noticed.
Disc wear, warp
Besides wearing down, the disc may warp. A warped
disc
will
cause the brake
pads
to
drag on the disc and
wil
l
wear down
both the
pads and disc
quickly.
Dragging
will
also
cause overheating and poor
braking
efficiency.
Poor
braking
can also be caused by oil on
the
disc. Oil
on the disc must
be
cleaned off with trichloroethylene
or a
high
flash-point
solvent. Do
not
use one which will
leave
an oily residue.
lack
up the
motorcycle
so
that the front wheel
is
off
the
ground,
and turn the handlebar
fu
lly
to one
side.
Set
up
a dial gauge against the
front
disc as
illustrated,
and measure disc runout.
Remove
the
jack, set the motorcycle
up
on
its center stand, and
then measure
the
rear
disc
runout.
If
runout
exceeds
the service
I imit,
replace
the
disc.
Table J14
Disc Runout (Front, Rear)
Standard
Service Limit
under
0.15 mm
0.3 mm
Measure
the
thickness of each disc
at
the point
where it has
worn
the most. Replace
the
disc
if
it has
worn past
the service
limit.
Table J15
Disc Thickness
Standard
Service Limit
4.8-5.1 mm
4.5 mm
STEERING STEM
l. Flat Washer
9.
Lower
Inner
Race
2. Stem Head Bolt
10.
Upper Inner Race
3.
Stem Head Clamp Bolt
11. Bearing Ball
4. Stem
Locknut
12. Frame Head Pipt
5. Stem Cap
13. Bearing Ball
6. Upper Outer Race
14.
Stem
Head
7.
Steering Stern
15. Stem Base
8. Lower Outer Race
16.
Clamp
Bolt
Table J16
Bearing
Ball
Specifications
Size
Quantity
1/4"
19
x
2
Steering stem warp
Examine the steering stern, and
replace
it
if
it is bent.
Bearing wear, damage
Wipe the bearings clean of grease and dirt, and ex-
amine the
races
and
balls.
If the balls or
races
are worn,
or if either
race is
dented, replace
both
races and all the
balls for
that
bearing
as
a set.
Bearing lubrication
In accordance with the Periodic Maintenance Chart
(Pg.
10),
and
whenever the steering stem is disassem-
bled, the steering stern
bearings
should
be
relubricated.
Wipe all the old grease off the races and balls, washing
them in
a
high
flash-point
solvent
if
necessary.
Replace
the bearing
parts
if
they
show wear or damage. Apply
grease
liberally
to the upper and
lower races,
and stick
the
bearing
balls in place with grease.

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   Also See for Kawasaki Z250 1981

This manual is also suitable for:

Kz350 1981

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