Checking The Chain, Rear Sprocket, And Engine Sprocket - KTM 125 Duke EU 2015 Owner's Manual

11 SERVICE WORK ON THE CHASSIS
11.13

Checking the chain, rear sprocket, and engine sprocket

–
Check rear sprocket and engine sprocket for wear.
» If the rear sprocket or engine sprocket are worn:
–
Change the power set.
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Info
The engine sprocket, rear sprocket and chain should only be changed
together.
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