KTM 450 SX-F, Owner'S Manual

Page: 41 / 152

TUNING THE CHASSIS 10
39
10.9 Checking the riding sag of the shock absorber
402417-10
–
Measure dimension
A
of rear wheel unloaded. ( p. 38)
–
With another person holding the motorcycle, the rider, wear-
ing full protective clothing, 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 gage.
–
Note the value as dimension
C
.
Info
The riding sag is the difference between
measurements
A
and
C
.
–
Check riding sag.
Riding sag 105 mm (4.13 in)
» If the riding sag differs from the specified measurement:
–
Adjust the riding sag. ( p. 40)
10.10 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
Note the current adjustment before changing the spring preload - e.g. measure the spring length.
Preparatory work
–
Remove main silencer. ( p. 67)
–
Raise the motorcycle with a lift stand. ( p. 47)
–
Remove the shock absorber. ( p. 58)
–
After removing the shock absorber, clean it thoroughly.