Rear Suspension; Adjusting The Rear Shock Absorber - APRILIA pegaso 650 i.e. Service Manual

SERVICE AND SETTING UP
 ).30%#4).' 4(% 2%!2 3530%.3)/.

2.25.1 REAR SUSPENSION

The rear suspension consists of a spring-shock absorber
unit, fixed to the frame by means of a uni-ball and to the
rear fork by means of lever systems.
The rear suspension consists of a spring-shock absorber
unit, fixed to the frame by means of a uni-ball and to the
rear fork by means of lever systems.
For the setting of the vehicle attitude, the shock ab-
sorber is provided:
– with a screw adjuster (1) for the adjustment of the hy-
draulic braking with extended shock absorber;
– an adjusting ring nut (2) and a locking ring nut (3) for
the adjustment of the spring preload.
Carefully read 0.5.1 (PRECAUTIONS AND GENERAL
INFORMATIONS).
For the maintenance intervals, see 2.1.1 (REGULAR
SERVICE INTERVALS CHART) under:
– Suspensions and attitude;
– Rear shock absorber;
– Nut, bolt, screw tightening.
N
Check all the rear suspension joints are working prop-
erly and that the relevant components are properly
tightened.

2.25.2 ADJUSTING THE REAR SHOCK ABSORBER

N
Remove the rear shock absorber, see 7.10.1 (REMOV-
ING THE SHOCK ABSORBER).
N
Position the shock absorber on a vice, as indicated in
the figure.
a
CAUTION
For the adjustment, always start from the most rigid
setting.
Do not rotate the screw adjuster (1) beyond its limit
position, to avoid damaging the thread.
Make sure that the screw adjuster (1) always snaps
and is not in any intermediate position.
The adjusting ring nut must not be screwed more
than 12 mm from the beginning of the thread (see fig-
ure).
If this measure is exceeded, even the slightest une-
venness on the road surface will cause sudden jerks
and it will be useless to adjust the screw (1).
N
Slightly unscrew the locking ring nut (3) by means of
the appropriate spanner.
N
Act on the adjusting ring nut (2) (shock absorber spring
preload adjustment) (see figure).
N
If necessary, adjust the screw (1) (adjustment of the hy-
draulic braking with extended shock absorber) (see ta-
ble).
N
Once the optimal attitude has been obtained, tighten
the locking ring nut (3) completely.
2 - 42
- 00
ã
Follow
Pegaso 650 I.E.
Release 00/2002-02