Hey I have a k1 600 that has a knocking when I am in nuetral and release the clutch. Noise goes away if I pull in clutch lever or drop in 1st or any other gear when riding. Basically only hear it in nuetral after releasing clutch lever. Sound is getter louder and can't exactly pin point it. It was a slight tap now a hard knock ( realy hard sometimes i feel it threw stand on concrete standingnext to bike) but sometimes not bad at all or can barely hear it at all. Its not as bad also when fully warmed up. I know there's a bunch of old threads with not much info. Any takers?