TUNING THE CHASSIS 11
53
11.9 Adjusting the spring preload of the shock absorber
Caution
Risk of injury Parts of the shock absorber will move around if the shock absorber is detached incorrectly.
The shock absorber is filled with highly compressed nitrogen.
– Please follow the description provided. (Your authorized KTM workshop will be glad to help.)
Info
Before changing the spring preload, make a note of the present setting, e.g., by measuring the spring
length.
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 59)
– Remove the seat. ( p. 70)
– Remove the frame protector. ( p. 72)
– Remove main silencer. ( p. 75)
– Remove the shock absorber. ( p. 68)
– After removing the shock absorber, clean it thoroughly.
402405-10
Main work
–
Loosen screw
1
.
–
Turn adjusting ring
2
until the spring is no longer under ten-
sion.
Hook wrench (90129051000)
Info
If the spring cannot be fully released, the spring must
be removed to accurately measure the spring length.
– Measure the total spring length while the spring is not under
tension.
–
Tension the spring by turning adjusting ring
2
to specified
dimension
A
.
Guideline
Spring preload 7 mm (0.28 in)
Info
Depending on the static sag and/or the rider sag, it may
be necessary to increase or decrease the spring preload.
–
Tighten screw
1
.
Guideline
Screw, shock
absorber adjusting
ring
M5 5 Nm (3.7 lbf ft)
Finishing work
– Install the shock absorber. ( p. 69)
– Install the main silencer. ( p. 75)
– Install the frame protector. ( p. 72)
– Mount the seat. ( p. 71)
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