Ive had my bike for 1 year now...it has14, 000 miles on it. Some of you may remember I had a stalling and backfire issue, which I never solved. I did the CO adjustment last year but waited till warranty was up to do throttle body mixture screws , done 2 weeks ago at dealer. It did not help with the stalling whatsoever. It did seem to run better low to mid range but now weeks later im having a problem ...it will not idle correctly. It seems to be getting worse. Went for a ride on sunday, it was idling at 2000 rpm but it was only 20 some degrees and I thought it would go down. First couple stops I made it was idling at 1500 but jumping up and down. After half day of riding I stopped and when I restarted it was going from 800 to 1600 very sporadically. Then on way home it seemed it had a little miss going down highway. Any input as to why I have 2 thoughts im thinking vacuum leak or is it possible that the mixture screws being turned out does it make them looser and cojld they have moved? I ordered a sync gauge so I can check. Im not sure if right place to ask but since on the subject figured id start here.