12 SERVICE WORK ON THE CHASSIS 68
12.31 Checking the chain, rear sprocket, motor sprocket, and chain guide
Preparatory work
– Deactivate the vehicle. ( p. 37)
– Fold the seat up. ( p. 63)
– Remove the KTM PowerPack. ( p. 96)
– Mount the covering cap. ( p. 64)
– Raise the motorcycle with a lift stand. ( p. 49)
400227-01
Main work
– Check the rear sprocket and motor sprocket for wear.
» If the rear sprocket and motor sprocket are worn:
– Change the power set.
Info
The motor sprocket, rear sprocket, and chain should always be
replaced together.
400987-10
–
Pull at the top part of the chain with the specified weight
.
Guideline
Weight, chain wear measurement 10… 15 kg (22… 33 lb.)
–
Measure the 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
272 mm (10.71 in)
»
If distance
is greater than the specified measurement:
– Change the power set.
Info
The motor sprocket, rear sprocket, and chain should always be
replaced together.
C00828-01
– Check the chain sliding guard for wear.
» If the lower edge of the chain pin is at the level of or below the chain sliding
guard:
– Change the chain sliding guard.
– Check that the chain sliding guard is firmly seated.
» If the chain sliding guard is loose:
– Tighten the screws on the chain sliding guard.
Guideline
Remaining screws, chassis M6 10 Nm
(7.4 lbf ft)
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