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Changing The Spring Preloading Of The Shock Absorber; Lubricate Rear Suspension Linkage; Checking Rubber Ring On The Wp Rear Shock Absorber - KTM 400 SX Owner's Handbook Manual

1998
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min. 2,5 mm

Changing the spring preloading of the shock absorber

KTM sets the shock absorber for a driver only, weighing approximately 75 kg
(165 lb). If you want to take a passenger with you, of if you weigh considerably
more or less than 75 kg (165 lb), you should change the spring preloading
accordingly. This is easily done.
NOTE:
– Before changing the spring preload note down the basic setting, e.g. how many
threads are visible above the adjusting ring.
– One rotation of the adjusting ring
mately 1,75 mm (0,07 in).
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Loosen the locking ring
with the hook spanner from the tool set. Change the
spring preload with the adjusting ring
BASIC SETTING – SPRING PRELOAD
SX: 17 mm (0.7 in) / SC, EGS: 23 mm (0,9 in)

Lubricate rear suspension linkage

The bearings in the link lever must be greased in regular intervals. For this pur-
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pose, a lubricating nipple
is mounted on the link lever.
!
A
FTER EACH TIME THE MOTORCYCLE IS WASHED
THE LUBRICATING NIPPLE TO PUSH ANY WATER OUT OF THE BEARINGS

Checking rubber ring on the WP rear shock absorber

A rubber ring mounted on the rear shock absorber serves as a vibration damper.
This ring gets pressed together with time and loses its shock absorbing quality.
Measure the distance between the two discs at various points around their cir-
cumferences. The space should be at least 2.5 mm (0,1 in) wide. Have the rubber
ring replaced by an KTM dealer when compaction due to wear has exceeded this
lower limit.
!
N
OT REPLACING THE RUBBER RING IN TIME CAN RESULT IN DAMAGE TO THE REAR SHOCK
.
ABSORBER
T
HE DAMPING UNIT OF THE SHOCK ABSORBER IS FILLED WITH HIGH COMPRESSED NITROGEN
N
EVER TRY TO TAKE THE SHOCK ABSORBER APART OR TO DO ANY MAINTENANCE WORK
. S
YOURSELF
EVERE INJURIES COULD BE THE RESULT
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changes the spring pretension by approxi-
2
and re-tighten the locking ring.
CAUTION
,
IT IS ESPECIALY IMPORTANT TO GREASE
.
CAUTION
WARNING
.
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17
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.

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