I have a 98 300 4x. First problem (besides it being cold blooded) is when I would try to accelerate, I'd hit a certain rpm and the thing would fall on its face. Thru all gears. Decided to go thru the carb. Reinstalled it and now the thing will start with choke on but as soon as you hit the throttle it does. When you adjust the choke it dies. Basically it will start and idle with full choke and that's it.