Hey fellas, thanks for all the responses, you guys make this forum rock. Ive got the same warm up routine that Fergy does, put on choke about halfway until it revs and then coax it back into a nice even idle. I do have a little inconsistency on the gauge at warm 1500 idle, im estimating it to be up to about 150 rpm up or down. When its cold idling i dont have any movement on the needle, its a thing of beauty (plus my gauges dont vibrate so much). Oh and my throttle cable are clean and snappy, I just did them last week.
I found my idle adjust screw by rolling the throttle and checking where the cable housing makes contact with the screw to keep the throttle plate open. I suspect that mine is different from other vulcans, it looks like a mechanic the bike was brought to (in its previous life) replaced the idle adjust with a phillips head machine screw, (a spring fitted under the head of the screw). I should mention that im not looking at the sync screw, i made double sure of that. Anyways, i cant imagine that the stock plastic knob somehow drives a phillips head screw to make adjustments so Im pretty sure this is a little improv going on. Only problem is its impossible to get to the screw with any phillips head device, of which ive got several. If thats not bad enough, the damn thing doesnt have a hex head. I might have to pull the tank and see if I can weasel in from above.
Im hoping that Fergy's right and Ill just compensate for a slow cold idle with some good ole choke. Ill let you guys know how it goes, thanks for all your help.