New 05 re-jetted for most of my anticipated riding during the year. The bike had a noticeable hesitation and cut out at constant speed. Checked all the threads and some said jetting and some said TPS. I unplugged the TPS, and did see a little difference but not a lot. Adjusted the air screw and also had less hesitation then TPS. ****FINDINGS!!!!!! I left the house today 60degrees/1000' and sunny and headed for the hills to do some road riding. It was 10 degrees warmer then it was/has been while trying to get rid of the hesitation/cutting out for quite a while. The first five miles the hesitation was there but very noticeably less. After getting into the hills and gaining 2000' the temp dropped to less then 50 with 2' of snow everywhere but the plowed roads. At one point I was riding down basically a single lane with plowed snow 4' high on each side of the road. The temp was easily close to 40, and the hesitation came back stronger and very noticeable like before. DUH????!!! even I could figure this out so I flipped a B*#@ and screamed back for the sun and warmer air to see if I was right. Hesitation again noticeably reduced as soon as I hit the warm no snow and sunny area. So to me the hard cutting out/hesitation is more related to jetting then the TPS. I also agree it is because of being too rich on the jetting. I am stoked because I am sure as it warms up to our summer temp of 80-90 my jetting will be right on. To each his own, but I am advocating getting your jetting right before messing with the TPS.