XR600R makes banging sound when slipping clutch

I have a 92 XR600R which has started to make a banging sound when the clutch is slipped. This typically happens when I'm starting off in deep sand. After about a second of slipping the clutch, I hear and feel a thud coming from somewhere down below. The condition and adjustment on the clutch cable, chain and sprockets are all okay.

I did have one incident where the axle nut came loose and the chain slack increased to around 4 inches. I got the same noise then, but without the clutch being slipped.


With out hearing it myself it's hard to say. I did have a XR600 loose the rear wheel bearing that made noise as the bearing started falling out under load. :applause: That might explain the chain jumping sound you discribed when the axle nut came loose.

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