szr (xtz 660 tenere engine) problem

szr (xtz 660 tenere engine) problem

Common problem with loosen locknut on crankshaft or balancer shaft (beaten keys, and washers) in engine from xtz660 (szr660, mz etc.) after circa 30 k km.
Sounds pretty similar to problems with ending crank, can be serius problem, when balancer crash into the crankshaft…

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