Clunking in first gear? and clutch Q

[Ritlee]

While in first gear I've noticed my bike has started to make kind of a clunking noise, not very noticeable though. It only happens while under power, and I don't think it's there in any other gear. Am I paranoid or do I have something I need to check out?

Also where's a good place to find a decent clutch kit (wet clutch) for a good price, I'm not racing or hot rodding, so I don't really need a high performance clutch. I think the clutch is ready for replacement, because my adjustment in the handle is backed all the way out and I have a little slipping if I twist the throttle on the hard side.

thanks in advance