Adjusting The Spring Preload Of The Shock Absorber; Adjusting The Riding Sag - KTM 250 EXC-F Owner's Manual

11 TUNING THE CHASSIS
11.9

Adjusting the spring preload of the shock absorber

Caution
Danger of accidents Disassembly of pressurized parts can lead to injury.
–
The shock absorber is filled with high density nitrogen. Adhere to 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 length of the spring.
11.10

Adjusting the riding sag

Preparatory work
–
Raise the motorcycle with the lift stand. (
–
Remove shock absorber.
–
After removing the shock absorber, clean it thoroughly.
Main work
–
Loosen screw
–
Turn adjusting ring
Hook wrench (T106S)
–
Measure the overall spring length while the spring is not under tension.
–
Tighten the spring by turning adjusting ring
Guideline
Spring preload
Info
Depending on the static sag and/or the riding sag, it may be necessary to
increase or decrease the spring preload.
–
Tighten screw
Guideline
Screw, shock absorber adjusting ring
401026-10
Finishing work
–
Install the shock absorber.
–
Remove the motorcycle from the lift stand. (
Preparatory work
–
Raise the motorcycle with the lift stand. (
–
Remove shock absorber.
–
After removing the shock absorber, clean it thoroughly.
Main work
–
Choose and mount a suitable spring.
Guideline
Spring rate
Weight of rider: 65... 75 kg (143...
165 lb.)
Weight of rider: 75... 85 kg (165...
187 lb.)
Weight of rider: 85... 95 kg (187...
B00292-10
209 lb.)
Info
The spring rate is shown on the outside of the spring.
Smaller weight differences can be compensated by changing the spring
preload.
( p. 62)
 .

until the spring is no longer under tension.

.
( p. 62)
( p. 62)
p. 49)
 to measurement  .
8 mm (0.31 in)
M5 5 Nm (3.7 lbf ft)
p. 49)
p. 49)
66 N/mm (377 lb/in)
69 N/mm (394 lb/in)
72 N/mm (411 lb/in)
43