Not as detailed as I recall but glean what you can from this old post with an FZ6 gutted. . . .
http://www.600riders.com/forum/fz6-technical/36575-knock-knock.html
http://www.600riders.com/forum/fz6-technical/36575-knock-knock.html
I dont have to split the case to change the oil pup chain. i took the clutch out and the top drive gear is on the back. is it normal for the chain to be so slack?
https://www.youtube.com/watch?v=cUDzhUiZftY
have now changed water pump chain and guides, clutch plates and baring, tried thick and thin oil, taken off sump checked for shrapnel and found nothing new.
the only thing i still notice is that when i drain the oil fully and refill the noise is gone for a short time then it comes back. so no change