anybody know where it may have come from, i did find all the parts required to convert back to stock clutch but somehow I thought this might be involved with timing. As always thanks for the feedback!!!!

Well usually that part is replaced with an ignition advancer from factory racing! Goes on the right side under the cover in front of the clutch, aka puslor cover. Proper name is Pulse Rotor

Thanks very much. I guess the bike may have a factory pro ignition advancer in it. Have you ever installed one? What were your results? Looks like the prior owner did a few mods. I checked their website and can't find too much data about it except to say it is supposed to make throttle response more crisp on a carbed bike.

I install them on all my bikes. Usually on a carbed bike you do the following at the same time.... Pipe, filter, jet kit, ignition advancer. Usually get 10-15hp gains. I have never just done the ignition advancer to see the effects of just that.

Bike has a full Yoshi system, k&n, and I guess it would be jetted but not sure.

If it wasnt jetted it would be running like pure dog shit.