KTM 690 ENDURO EU - Manual (Page 75)

MAINTENANCE WORK ON CHASSIS AND ENGINE
73
9.23
Checking rear sprocket / engine sprocket for wear
100132-10
– Check rear sprocket / engine sprocket for wear.
» If the rear sprocket / engine sprocket are worn:
– Replace rear sprocket / engine sprocket.
Info
The engine sprocket, rear sprocket and chain should always be replaced
together.
For safety reasons, the chain has no chain joint. Always have the chain
replaced in an authorized KTM workshop, where the necessary chain
rivet tool is available.
– Check chain guides for tightness and wear.