This week I got my tires and after struggling for an hour on the front, finally fitted it and then couldn't get the bead to seat evenly...

A couple of weeks ago I was finally able to fire up the engine. The cosmetic look of the engine suggest that it has not done a lot of miles and when I was refitting the rear wheel I could see the spline looked brand new, further evidence I think of modest miles. Compression checks showed 130/135 psi on all cylinders. It blows a little smoke from the LHS, however the amount of smoke is reducing every time I start it as, I assume, the rings are bedding in after multiple years sitting. It starts at the touch of the button, revs cleanly and smoothly and sound really sweet. I rode it about a kilometer and found the gear shift a bit harsh, I am assuming this to will free up a bit more with some use on the clutch. I will look at syncing the carbs this weekend, I think the ignition is spot on.
I do have one question......
There is a bit of an intermittent clatter from the clutch area, it doesn't change if you pull in the clutch and I wondered if anyone has any idea what may be causing this?
Any and all advice will be greatly appreciated!
All the best
Andy