We got this 05 about 3 weeks ago, it has been running perfect until today. We headed out on the trail today & it started runing bad. It looses power like it is running out of fuel from around 1/2 throttle up. It pops back thru the intake. A few times it would die as soon as you touched the throttle. I went ahead & disconected the clutch/parking brake switch & did the reverse switch trick as well just to be sure. This changed nothing. I am really lost on this thing as it has been perfect & just started this.