My '07 FXDL (bought in Oct '06) usually, but not always, starts hard when it's hot. It cranks and bucks and sounds terrible. Sometimes it backfires. When I let off the starter button, I can hear what sounds like the fuel pump running over. The problem has persisted since day 1. It takes a couple of attempts, but it always starts. And it always starts fine when cold. Sometimes it starts fine when it's hot. Often the noisy restart happens after I have stopped to refill the gas tank. I have reported the problem to the dealer, but they have not so far been able to fix the problem. Last October, just before my warranty was up, I had the dealer try one more time. They replaced the starter clutch on warranty. I also had them do the 10K service. Of course I was not able to take a test ride until yesterday (Minnesota weather). Unfortunately I still have the problem. I plan to call the dealer one more time. I expect they should be able to fix the problem under warranty because the problem is well documented. I wonder if there is a special ECM sequence that controls fuel when starting. Maybe the ECM is sensitive to heat and it has trouble only when it's restarting a warm engine. I have not heard of heat problems with 07 Dynas. Just guessing.