The only rattle I know of common to this bike is the cam chain, which is on the right side of the engine. However, it only rattles on start-up due to it needing oil pressure to extend; when the bike is first started, the chain rattles because it is a bit slack. There are threads about this on this forum. But again, this is usually only a start- up rattle, not something that happens after, say, 5 or 8 seconds of running.
The usual problems with the clutch are on the hydraulic side simply because the system is so hard to fully bleed. Of course that does not cause any rattle but it does result in a clutch that engages at different points as the engine warms.
Otherwise I am afraid I cannot be of much help with the mechanical clutch itself- unless a spring(s) is broken or tabs have been sheared off, they do not make noise.
Hopefully someone else can shed some light on this. Best of luck going forward.
Brian
Couldn't resist going into the clutch today to see if the star springs were broken. It's not hard to pull the cover off, then the springs. One steel and one friction plate came off as well. I broke the clutch hub nut loose and removed it. The star springs are fine...So I re-assembled, put the clutch cover on, added the oil, and started her up. Ran fine, shifted a couple of times at idle on the center stand. Then I gave the bike some throttle - and something rattles inside. It sounds like a loose cam chain might sound like, but it's coming from the clutch area. I pulled the cover off again, pulled the clutch springs, re-set the steel and friction plates. It appears that the friction plate's tab is one slot over from the others (like a secondary clutch). Fired it up again, same noise. Do any of you experts know what I may have done wrong in the reassembly process? The clutch has good feel - just now this new noise.
Getting to learn about Connie a bit at a time...
Thank you! Mac