Not sure what is going on with my 450r. When I run through whoops or breaking bumps on a MX course, the the motor bogs out like it's running out of gas but then clears up and is fine. It almost seems like the carb is loading up from going through the whoops and then either drowns itself out, or is running out of gas. I endowed and almost went over the bars 4 times cus of this problem. On every other section of the course the bike was fine (Jumps, corners, uphills, downhills, flat straights). The only sections that it did it was immediately upon exiting the whoops. I did not alter anything on the carb or exhaust nor air box yet on my bike, it's all stock. I did take the airbox lid off to see if that would do anything, the bike bogged as soon as I'd give it more than 3/4 throttle. Any help would be appreciated.