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MAINTENANCE WORK ON CHASSIS AND ENGINE 35
Checking the chain tension when fitting rear wheel
Warning
Danger of accidentsಗDanger caused by incorrect chain tension.
ಥ If the chain tension is too high, the components of the secondary power train (chain, engine sprocket, rear sprocket, bear-
ings in transmission and rear wheel) are under additional load. Apart from premature wear, in extreme cases the chain can
rupture or the countershaft of the transmission can break. On the other hand, if the chain is loose, it can fall off the engine
sprocket or the rear sprocket and block the rear wheel or damage the engine. Check for correct chain tension and adjust if
necessary.
500192-10
ಥ Make sure that the chain adjusters are fitted correctly on the adjusting screws.
ಥ Push the chain at the end of the chain sliding component upwards to measure
chain tension
.
Info
The upper chain section must be taut.
Chain wear is not always even, so you should repeat this measurement at
different chain positions.
Chain tension 8… 10mm (0.31… 0.39in)
» If the chain tension does not meet specifications:
ಥ Adjust the chain tension when fitting rear wheel. ( P. 37)
Checking the rear sprocket / engine sprocket for wear
400227-01
ಥ Check the rear sprocket / engine sprocket for wear.
» If the rear sprocket / engine sprocket are worn:
ಥ Replace rear sprocket / engine sprocket.
Info
When fitting the chain joint, always make sure that the closed side
of the joint faces forward (riding direction).
The engine sprocket, rear sprocket and chain should always be re-
placed together.
ಥ Check that the chain guide is firmly seated and not worn.
Checking chain wear
ಥ Jack up the motorcycle. ( P. 21)
400385-10
ಥ Shift to neutral and pull the upper chain length with the specified tension.
Specification
Chain tension 10… 15kg (22.05… 33.07lb.)
ಥ Measure distance
of 18 chain links in the lower chain section.
Info
Chain wear is not always even, so you should repeat this measurement at
different chain positions.
Maximum distance
at the longest
chain section
272mm (10.71in)
» If distance
is greater than the specified measurement:
ಥ Replace the chain.
Info
When you replace the chain, you should also replace the rear and
engine sprockets.
New chains wear out faster on old, worn sprockets.
ಥ Remove the motorcycle from the work stand. ( P. 21)