idling issues

[grego]

hi all

i previously posted about the choke cable problem. well to totally eliminate the possibility i replaced it yesterday. the one i took off moved freely, but it eliminated it as one of the possibilities. when i start the bike with the choke off it goes up to 2000-2500 rpm. as i sit there putting on my gloves some times it slowly falls to normal idle. if i engage the choke it will go up to 4000 rpm. if i rapidly move the choke on and off it will go down to normal idle as well. when i stop sometimes it idles around 2000 rpm and other times it idles at a bouncing 1200-1400 rpm which is what it normally does for some reason. its not steady at that rpm. the engine sounds like its steady but then again what do i know. any ideas as to what the problem might be ?

safe biking

grego