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Chain Wear; General Informations About Ktm Disc Brakes; Adjusting Of Free Travel At The Hand Brake Lever - KTM 1998 125sx Owner's Manual

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Chain wear

In order to check the chain wear, regard the following indications:
15 KG
Shift the gear into idling and pull the upper chain strand with approx. 10-15 Kilo-
gramm (33 lb) upwards (see figure). Now one can measure a space of 18 chain
33 lb
reels at the lower chain strand. The chain should be replaced at the latest when a
space of 272 mm (10.70 in) is measured. Chains do not always wear off evenly,
therefore repeat the measurement at different places on the chain.
NOTE:
If you mount a new chain, the sprockets should also be replaced. New chains wear
faster if used on old used sprockets.
max. 272 mm
1 2 3
16 17 18
15
General information about KTM disc brakes
BRAKE CALIPERS:
The brake calipers of this series use a „floating" mount. This means that the brake
calipers are not solidly attached to the caliper support, which enables them to
„float" for maximum braking contact.
DOT
DOT
BRAKE PADS:
5.1
5
The motorcycles are delivered with organic brake pads and have also been type-
coded with these pads. Said pads are suitable for almost the entire range of applica-
tion of these motorcycles.
It is only for competitive racing in extremely dirty conditions (e.g., water in combi-
nation with sand and mud) that we recommend brake pads that have sintered
linings. However, take notice of the fact that brake pads with sintered linings have
not been type-coded! Besides, they may cause greater wear on the brake discs.
BRAKE FLUID RESERVOIRS:
The brake fluid reservoirs on front and rear wheel brakes have been designed in
such a way that even if the brake pads are worn it is not necessary to top up the
brake fluid. If the brake fluid level drops below the minimum level either the brake
system has a leak or the brake pads are completely worn.
In this case, consult an authorized KTM dealer immediately.
BRAKE FLUID:
KTM fills the brake system with "Shell Advance Brake DOT 5.1", one of the best
brake fluids currently available. We recommend that you continue to use it. DOT
5.1 brake fluid is based on glycol ether and of an amber color. If you do not have
any DOT 5.1 for refilling, you may use DOT 4 brake fluid. However, you should
replace it as soon as possible by DOT 5.1.

Adjusting of free travel at the hand brake lever

Free travel at the hand brake lever may be readjusted by using adjustment screw
1
1
. In this way, the position of the point of pressure (i.e., the resistance you feel on
the hand brake lever when the brake pads are pressed against the brake disc) can
be adjusted for any hand size.
!
!
CAUTION
A
,
3
(0.1
). O
T THE HAND BRAKE LEVER
FREE TRAVEL MUST AT LEAST BE
MM
IN
NLY THEN
(
MAY THE PISTON IN THE HAND BRAKE CYLINDER BE MOVED
TO BE RECOGNIZED BY THE
min. 3 mm
). I
,
GREATER RESISTANCE OF THE HAND BRAKE LEVER
F THIS FREE TRAVEL IS NOT PROVIDED
,
-
PRESSURE WILL BUILD UP IN THE BRAKING SYSTEM
AND THE FRONT
WHEEL BRAKE MAY FAIL
.
DUE TO OVERHEATING

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