I have changed my old clutch to a new one, but problems have occurred. I don´t know if it´s because of the clutch or not. My back wheel has started to shake, and a sound comes up some places, It´s hard to explain. I think that the chain has bended or a bit broken.. when the wheel goes the chain is lagging and causing the wheel to shake and almost impossible to drive.. ? has somebody had the same problem? The problem occurred after I changed the clutch..