I did about 50 miles of riding yesterday. Trail was a wide open but very rough 18 mile loop and it was about 30 degrees. I was running woods map because thats what I have been using all year regardless of conditions. I noticed a lot of decel pop/sputter and an ocassional backfire. Silencer was also coated with a good bit of black inside. I assume do to the cold and some high speed the bike was running rather rich and in combination with late ignition timing from woods map that this is what was causing this. I should've tried a different map I guess and checked w/t reading but tuner was nice an warm in my basement. Any thoughts? Anyone else have this situation?