11 SERVICE WORK ON THE CHASSIS 67
11.36 Checking the chain tension
Warning
Danger of accidents Danger caused by incorrect chain tension.
– If the chain is too taut, the components of the secondary power transmission (chain, engine sprocket, rear sprocket, bear-
ings in the transmission and in the rear wheel) will be under additional load. In addition to premature wear, this can cause
the chain or the countershaft of the transmission to break in extreme cases. If the chain is too loose, however, it may fall
off the engine sprocket or rear sprocket and block the rear wheel or damage the engine. Ensure that the chain tension is
correct and adjust it if necessary.
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 44)
M01165-10
Main work
(All 125/150 models)
– Pull the chain at the end of the chain sliding piece upward to measure chain
tension
.
Guideline
The lower chain section
must be taut.
Info
Chain wear is not always even, so you should repeat this measurement
at different chain positions.
Chain tension 55… 58 mm (2.17… 2.28 in)
» If the chain tension does not meet the specification:
– Adjust the chain tension. ( p. 67)
B02103-10
(All 250/300 models)
– Pull the chain at the end of the chain sliding piece upward to measure chain
tension
.
Guideline
The lower chain section
must be taut.
Info
Chain wear is not always even, so you should repeat this measurement
at different chain positions.
Chain tension 55… 58 mm (2.17… 2.28 in)
» If the chain tension does not meet the specification:
– Adjust the chain tension. ( p. 67)
Finishing work
– Remove the motorcycle from the lift stand. ( p. 44)
11.37 Adjusting the chain tension
Warning
Danger of accidents Danger caused by incorrect chain tension.
– If the chain is too taut, the components of the secondary power transmission (chain, engine sprocket, rear sprocket, bear-
ings in the transmission and in the rear wheel) will be under additional load. In addition to premature wear, this can cause
the chain or the countershaft of the transmission to break in extreme cases. If the chain is too loose, however, it may fall
off the engine sprocket or rear sprocket and block the rear wheel or damage the engine. Ensure that the chain tension is
correct and adjust it if necessary.
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 44)
– Check the chain tension. ( p. 67)
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