Checking The Riding Sag Of The Shock Absorber; Adjusting The Spring Preload Of The Shock Absorber - KTM 250 EXC-F EU Owenrs Manual

MAINTENANCE WORK ON CHASSIS AND ENGINE

Checking the riding sag of the shock absorber

13.10

Adjusting the spring preload of the shock absorber

13.11
Danger
Danger of accidents The shock absorber is under high pressure.
–
The shock absorber is filled with highly compressed nitrogen, so never dismantle the shock absorber or carry out any main-
tenance on it yourself.
Info
Before changing the spring preload, make a note of the present setting, e.g., by measuring the length of the spring.
2 2
1 1
A A
–
Measure distance
–
With another person holding the motorcycle, sit on the saddle with full protective
clothing in a normal sitting position (feet on footrests) and bounce up and down a
few times until the rear suspension levels out.
0 0 A A
–
The other person now has to measure the distance between the rear axle and a
fixed point.
–
Make a note of the value as measurement
Info
The riding sag is the difference between measurements
–
Check the riding sag.
Riding sag (EXC‑F, EXC‑F SIX DAYS,
XCF-W)
C C
Riding sag (250 XC-F USA)
Riding sag (250 SX-F EU)
Riding sag (250 SX-F USA)
» If the riding sag differs from the specified measurement:
–
400222-10
Adjust the riding sag.
x
–
Remove shock absorber.
–
After removing the shock absorber, clean it thoroughly.
–
Loosen screw
–
Turn adjusting ring
Combination wrench (50329080000)
Hook wrench (T106S)
–
Measure the overall spring length when not under tension.
–
Tighten the spring by turning adjusting ring
Guideline
Spring preload (EXC‑F,
EXC‑F SIX DAYS, XCF-W)
Spring preload (250 XC-F USA)
Spring preload (250 SX-F EU)
Spring preload (250 SX-F USA)
Info
Depending on the static sag and/or the riding sag, it may be necessary to
increase or decrease the spring preload.
–
Tighten screw
400216-10
Guideline
Screw, shock absorber adjusting ring
–
Install the shock absorber.
of rear wheel unloaded. (


( p. 42)
x
( p. 42)
x
.

until the spring is no longer under tension.

.

x ( p. 42)
p. 40)
.
and
 
105 mm (4.13 in)
112 mm (4.41 in)
105 mm (4.13 in)
107 mm (4.21 in)
to measurement .
 
9 mm (0.35 in)
5 mm (0.2 in)
6 mm (0.24 in)
7 mm (0.28 in)
M6 5 Nm (3.7 lbf ft)
41
.