My bike is brand new with only 2k miles on it. The only modification is an akrapovic bolt on exhaust that i put on a month ago. During hard acceleration the bike dies and is hard to start up again. I have to pull over wait a bit then it will start right up. Seems like it is not getting enough fuel? then then dies then i have to wait for gravity to feed it back through the tubes? This has happened to me about 3 times, really sucks. Anyone have any ideas?