Mine would cut out regardless of fuel level. I would be riding along under acceleration and the bike bike would just die. Pull in the clutch, hit the starter, and she fires right back up. Would be deadly going into a corner on a wet road, however.................. I've got 950 miles on my 800, and in that time it's cut out at least 5-6 times, all at different speeds / altitudes.
My riding partner has had the same problem. Dealer has no answers.