KTM 250 EXC-F EU 2010, Owner'S Manual

Page: 44 / 136

11 TUNING THE CHASSIS
42
11.6 Measuring rear wheel sag unloaded
Preparatory work
–
Raise the motorcycle with the lift stand. ( p. 49)
400988-10
Main work
–
Measure the distance
–
as vertically as possible
–
between the rear axle and a fixed
point such as a mark on the side cover.
–
Make note of the value as measurement

.
Finishing work
–
Remove the motorcycle from the lift stand. ( p. 49)
11.7 Checking the static sag of the shock absorber
400989-10
–
Measure distance

of rear wheel unloaded. ( p. 42)
–
Hold the motorcycle upright with the aid of an assistant.
–
Measure the distance between the rear axle and the fixed point again.
–
Note down the value as dimension

.
Info
The static sag is the difference between measurements

and

.
–
Check the static sag.
Static sag 33… 35 mm (1.3… 1.38 in)
» If the static sag is less or more than the specified value:
–
Adjust the spring preload of the shock absorber. ( p. 43)
11.8 Checking the riding sag of the shock absorber
400990-10
–
Measure distance

of rear wheel unloaded. ( p. 42)
–
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 now measures the distance between the rear axle and a fixed point.
–
Note down the value as dimension  .
Info
The riding sag is the difference between measurements

and

.
–
Check the riding sag.
Riding sag 105… 115 mm (4.13… 4.53 in)
» If the riding sag differs from the specified measurement:
–
Adjust the riding sag. ( p. 43)