Checking The Riding Sag Of The Shock Absorber; Adjusting The Spring Pretension Of The Shock Absorber - KTM 350 SX-F 2018 Owner's Manual

10 TUNING THE CHASSIS
10.9

Checking the riding sag of the shock absorber

10.10

Adjusting the spring pretension of the shock absorber

Caution
Risk of injury Parts of the shock absorber will fly off if the shock absorber is disassembled 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 pretension, make a note of the present setting, e.g., by measuring the length of the spring.
–
Measure distance
–
With another person holding the motorcycle, the rider, wearing full protective cloth-
ing, sits on the seat in a normal sitting position (feet on footrests) and bounces up
and down a few times.
The rear wheel suspension levels out.
–
Another person again measures the distance between the rear axle and
marking SAG on the rear fender using the sag gauge.
–
Note down the value as dimension
Info
The riding sag is the difference between measurements
–
Check the riding sag.
Riding sag (SX‑F EU)
Riding sag (SX‑F US)
Riding sag (XC‑F US)
» If the riding sag differs from the specified measurement:
402417-10
–
Adjust the riding sag.
Preparatory work
–
Raise the motorcycle with a lift stand. (
–
Remove the shock absorber.
–
After removing the shock absorber, clean it thoroughly.
Main work
–
Loosen screw
–
Turn adjusting ring
Hook wrench (90129051000)
–
Measure the overall spring length while the spring is not under tension.
–
Tighten the spring by turning adjusting ring
Guideline
Spring preload (SX‑F EU)
Spring preload (SX‑F US)
Spring preload (XC‑F US)
Info
Depending on the static sag and/or the riding sag, it may be necessary to
increase or decrease the spring pretension.
–
Tighten screw
Guideline
402659-10
Screw, shock absorber adjusting ring
Finishing work
–
Install the shock absorber.
A
of rear wheel unloaded. (
C
.
( p. 34)
( p. 47)
1
.
2 until the spring is no longer under tension.
1
.
( p. 48)
p. 32)
A
and
105 mm (4.13 in)
105 mm (4.13 in)
105 mm (4.13 in)
p. 39)
2 A
to measurement .
10 mm (0.39 in)
5 mm (0.2 in)
10 mm (0.39 in)
M5 5 Nm (3.7 lbf ft)
33
C
.