Husqvarna 2011 SMS 125, Workshop Manual

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D.20
H02697
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4
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H02699
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SETTINGS AND ADJUSTMENTS
Ed. 05-2011
Chain adjustment
Chain should be checked, adjusted and lubricated as per the Maintenance
Chart to ensure safety and prevent excessive wear. If the chain becomes badly
worn or is poorly adjusted (i.e., if it is too loose or too taut), it could escape from
sprocket or break.
Make sure that the chain features a slack (A) measuring approximately 12 mm
(0.47 in.), as shown in the nameplate (1) on chain cover.
Incorrect chain tension involves excessive and early wear of the
chain slider lower part; periodically check for wear and replace it if
worn out.
If it is not, proceed as follows:
- on the right side, with a 25 mm. Allen wrench, loosen the locking nut (2) of
the wheel axle;
- adjust the linkages (3) on both sides of the swinging arm using a 6 mm. Allen
wrench;
- make sure the wheel axle is properly aligned using the graduated scale (4)
for reference;
- the operation done, tighten the wheel axle locking nut (2).
After adjustment, always make sure that chain has a slack of 12 mm (0.47
in.).