Here we go, I had 230 miles on my F7 with zero problems and went north to go riding. 15 miles into the trip on a lake at 94mph it quit!!! Towed it back to a dealer they took it apart and found a left cylinder with an overheat/burndown. I said greeeeaaaat what now, they said they would call Cat Monday morning. Cat said it had an air bubble which was stuck in the rear heat exchanger of the coolant system that let loose after that many miles. Well I guess it was not burped the correct way. The scary part for me is I watched the coolant level like a hawk and it was fine for the whole 230 miles and then goodnight Irene!!!