Husqvarna 2009 SMR 450, Owner'S Manual

Page: 139 / 474

CHAIN ADJUSTMENT (Fig. A)
Chain should be checked, adjusted and lubricated as per the
Maintenance Chart to ensure security and prevent excessive
wear. If the chains becomes badly worn or is poorly adjusted
(i.e., if it is too loose or too taught), it could escape from sprock-
et or break.
To adjust the rear chain it is necessary to lower the rear part of
motorcycle so to line up the drive sprocket axle, the rear swing
arm axle and the rear wheel axle as shown on drawing. Than let
turn three times the rear wheel. Now the chain should not be
tight.
Fast adjustment (Fig. B).
In the point shown in the figure, fit a bush (a), 35 mm diameter
(or alternatively a shim in the same size) and make sure the
lower branch (C) of the chain is slightly taut.
If it is not, proceed as follows:
- on the right side, with a 27 mm Allen screwdriver, loosen the
locking nut (1) of the wheel pin;
- with a 12 mm screwdriver, loosen the check nuts (2) on both
chain stretchers and work on the screws (3) to achieve the
right tension;
- when the adjustment is over, tighten the check nuts (2) and
the wheel pin nut (1).
When the adjustment is over check the wheel for alignment.
47
Fig. A
EN
a
C
1
3
2
Fig. B
Drive sprocket axle
Rear swing arm axle
Rear wheel axle
MUM2-250_310_450_510_2009_GB 21-05-2008 9:36 Pagina 47