Changing The Spring Preloading Of The Shock Absorber; Pivot Bearing; Check Chain Tension - KTM 125SX Owner's Handbook Manual

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16
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A
1
B

Changing the spring preloading of the shock absorber

The spring preload can be changed by turning the adjusting ring
purpose, you should dismount the shock absorber and clean it thoroughly.
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
approximately 1,75 mm (0,07 in).
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Loosen the clamping screw
vehicle tool set to turn the adjusting ring as desired. Turning it counter-
clockwise will reduce the preload, turning it clockwise will increase the
preload.
After readjusting the clamping screw
ADJUSTMENT VALUES - SPRING PRELOAD
minimum preload . . . . . . . . . . . . . . . . . 4 mm (0,15 in)
STANDARD PRELOAD . . . . . . . . . . . . . 6 mm (0,24 in)
maximum preload . . . . . . . . . . . . . . . . . 10 mm (0,4 in)

Pivot bearing

The pivot bearing 3 for PDS suspension struts at the swinging fork is
Teflon-coated and must not be lubricated with either grease or other lubri-
cants. Grease and other lubricants cause the Teflon coat to dissolve, whe-
reby the bearing's lifecycle will be reduced dramatically.
When cleaning your bike with a high-pressure cleaner, do not aim the high-
pressure spray directly at the pivot bearing.

Check chain tension

To check the chain tension, park the motorcycle.
Press chain upward at the end of the chain sliding component. The distance
between chain and swing arm should be approx. 15 mm (0.6 in). In the
course of this procedure, the upper chain portion A must be taut (see dra-
wing).
If necessary, correct chain tension.
WARNING
– I
F CHAIN TENSION IS TOO GREAT
( ,
CHAIN CHAIN WHEELS AND REAR WHEEL BEARINGS
,
CESSARY STRESS RESULTING IN PREMATURE WEAR AND EVEN CHAIN BREAKAGE
– T
OO MUCH SLACK IN THE CHAIN
JUMPING OFF THE CHAIN WHEELS
THE REAR WHEEL OR DAMAGE THE ENGINE
– I
N EITHER CASE THE OPERATOR IS LIKELY TO LOSE CONTROL OF THE MOTORCYCLE
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changes the spring pretension by
and use the hook wrench contained in the
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, tighten it to 8 Nm (6 ft.lb)
A
,
PARTS WITHIN THE SECONDARY TRANSMISSION
)
WILL BE SUBJECTED TO UNNE
, ,
ON THE OTHER HAND CAN RESULT IN THE CHAIN
. I ,
F THIS HAPPENS THE CHAIN COULD ALSO BLOCK
.
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. For this
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.
.