12
SERVICE WORK ON THE CHASSIS
71
12.38
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 the lift stand. (
–
Check the chain tension. (
K00136-10
Main work
–
Loosen nut
.
–
Loosen nuts
.
–
Adjust the chain tension by turning adjusting screws
left and right.
Guideline
Chain tension
55… 58 mm (2.17… 2.28 in)
Turn adjusting screws
on the left and right so that the markings on the
left and right chain adjusters are in the same position relative to reference
marks
. The rear wheel is then correctly aligned.
–
Tighten nuts
.
–
Make sure that the chain adjusters
are fitted correctly on the adjusting
screws
.
–
Tighten nut
.
Guideline
Nut, rear wheel spindle
M20x1.5
80 Nm (59 lbf ft)
Info
The wide adjustment range of the chain adjusters (32 mm (1.26 in))
enables different secondary ratios with the same chain length.
Chain adjusters
can be turned by 180°.
Finishing work
–
Remove the motorcycle from the lift stand. (
12.39
Checking the chain, rear sprocket, motor sprocket, and chain guide
Preparatory work
–
Raise the motorcycle with the lift stand. (
400227-01
Main work
–
Shift the transmission to idle.
–
Check the rear sprocket and motor sprocket for wear.
» If the rear sprocket and motor sprocket are worn:
–
Change the drivetrain kit.
Info
The motor sprocket, rear sprocket, and chain should always be
replaced together.
