"'
•
Trouble
Fork h8rd to r
otate
Hand
leba r shock absorber
at
fau lt (fails to be
tight
en-
ed)
Fluid
of
rear suspension
shock
absorber
is
leaking
Excessive wobbling
of
rear
suspension; knocks
at
full extension
Cause
I. Wing nut of handlebar
shock abso
rb
er
is
ol-erligh!en-
ed
2.
Friction wnshers
of
hand-
l
eb
ar
sho
ck
8bsorber arc da-
maged (scored)
3.
St
eering column bearings
overtightenerl
I . Friction 11·ashers
of
sl!ock
absorber arc
greasy
or dirty
a)
reser\·oir nut loosened;
b)
sealing ri
ng
broken;
c) rod damaged or worn;
d) gland damaged or worn;
e) gland cocked
spring
broken and
the nut deformed)
(gland
wa
rp
ed,
a) damping fluid lacking;
h)
low viscosity of
damping
fluid;
c) piston upper valve
seals
loosel
y;
Continued
Symptoms and
fault
lr<1cing
I
Remedy
--.----
2.
Dismantle handlebur
shock absorber and examine
it
3.
Adjust the
fo
rk
for pro-
per rotation by
chang
ing !he
tightening
of
bearings
I.
Di
smat1tlc shock absor-
ber and examine 1\"ashers
a)
oil
leaking
from under
the nut;
b) oil
leaking
from
under
th
e nut;
c)
fluid
flowing along the
rod;
d) fluid
flowing along the
rod;
e) fluid
flowing
along
the
rod
I. Slacken !he wing nut by
turning
it
counterclockwise
2.
Trim or replace fric!ion
washNs
3.
Loosett the tightening of
bearings
I. Clean the friction wash-
ers, make
sure
that
!he surfa-
ces arc not warped
a)
!igh!en
up
reservoir nut;
b) replace the t·ing ,,·ith a
ne\v one;
c)
replace the rod;
d)
replace
th
e gland;
e) check the component
parts, replace faulty ones,
if
any
a)
check the
amount
of
fluid; add,
if
necessary;
b)
fill up with
suita
ble
fluid;
c) overhaul and
wash !he
shock absorber, grind the \'al-
ve and piston end face,
if
ne-
cessary;
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