I had a 99 Venture.....On a long hot trip I filled up with 10% ethanol by mistake. After about 100 miles the bike begin heating up and cutting out. I would let it set for about 2 min. than go again. This happened about 3 times in 25 miles or so until I reached a gas station. I filled it with 87 and headed down the road. It took about a mile and it smoothed out and ran fine after that. Just my experience with ethanol. I burn it in my 4 wheelers but not my 2.