Breather Plug Front Fork; Cleaning The Dust Sleeves Of The Telescopic Fork; Changing The Spring Preload Of The Shock Absorber - KTM 125 EXE 2001 Owner's Handbook Manual

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Breather plug front fork

After every 5 hours of use for competitive racing, slacken the breather
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plugs a few turns in order to relieve excess pressure from the inside of
the fork. To do this, place the motorcycle on a stand with the front wheel
lifted off the ground. When riding the motorcycle mainly on street, it will be
enough to have this job performed in the course of the periodical mainten-
ance service.
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XCESSIVE PRESSURE IN THE INTERIOR OF THE FORK CAN CAUSE LEAKS IN THE FORK
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YOUR FORK IS LEAKING IT IS RECOMMENDED TO OPEN THE BREATHER PLUGS BEFORE
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HAVING THE SEALS REPLACED

Cleaning the dust sleeves of the telescopic fork

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The dust-protection bellows
from the fork tube. However, after some time, dirt may also get in behind
the dust-protection bellows. If this dirt is not removed, the oil sealing rings
located behind it may start to leak.
Use a screwdriver to lever the dust-protection bellows from the outer tubes
and slide them downward.
Clean dust-protection bellows, outer tubes, and fork tubes thoroughly, and
oil them thoroughly with silicone spray or engine oil. Then, push dust-pro-
tection bellows into the outer tubes by hand.

Changing the spring preload of the shock absorber *

KTM sets the shock absorber for driver only, weighing approximately 75 kg
(165 lb). If you want to take a passenger with you, of if you weigh consi-
derably more or less than 75 kg (165 lb), you should change the spring pre-
load accordingly. This is easily done.
NOTE:
– Before changing the spring preload note down the basic setting, e.g.
how many coils are visible above the adjusting ring.
– One rotation of the adjusting ring
approximately 1.5 mm.
Use the hook wrenches included in the vehicle tool kit to loosen the counter
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ring . Change spring preload as desired by means of the adjusting ring
and retighten counter ring.
ADJUSTMENT VALUES - SPRING PRELOAD:
Minimum preload...............................................................10 mm
Preload driver only 75 kg BASIC SETTING ..........................23 mm
Preload with passenger.......................................................28 mm
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= spring preload
CAUTION
are to remove dust and coarse dirt particles
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changes the spring preload by
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F
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