9 TUNING THE CHASSIS
18
Info
Turn clockwise to increase the damping; turn coun-
terclockwise to reduce the damping at a fast rebound
speed.
9.8 Measuring the rear wheel dimension unloaded
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 12)
400988-10
Main work
– Measure the distance – as vertical as possible – between the
rear axle and a fixed point, for example, a mark on the side
cover.
–
Note down the value as dimension
A
.
Finishing work
– Remove the motorcycle from the lift stand. ( p. 12)
9.9 Checking the static sag of the shock absorber
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–
Measure dimension
A
of rear wheel unloaded. ( p. 18)
– 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
B
.
Info
The static sag is the difference between measure-
ments
A
and
B
.
– Check the static sag.
Static sag
125/150/250 SX EU,
250/350/450 SX‑F EU,
125/250 SX US
TC 125/150/250 EU,
FC 250/350/450 EU,
TC 125/250 US
38 mm (1.5 in)
FC 250/350/450 US 40 mm (1.57 in)
» If the static sag is less or more than the specified value:
– Adjust the spring preload of the shock absorber.
( p. 19)
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