Wrapping / Clucking Sound ???

So, I have a 81' KAWA LTD 550 and I hear a clucking/wrapping sound from inside what I believe is the clutch, pressure plate housing. There are two bulges on the giant hunk of metal that is the engine. The front bulge towards the front of the bike houses the starter I believe. The back bulge I believe is the pressure plate, etc. and whatever.

I wish somebody could point me in the right direction of a "total how a motorcycle works video." Anybody know of any I can download, etc?

Anyways this wrapping sound can't be good.

If you venture over to HERE

You can look-up complete parts diagrams. The pics are the cleanest I've found.

Not sure about a video, as many bikes are completely different in design...

GL.