I got two 91 300 fourtrax 4x4 and the one im trying to get running starts and idles but cant give it any gas. i took apart carb as much as i could without breaking anything it was my first time. cleaned it and replaced float with i think newer model float (would that be a problem) and still cant give it any gas or it dies. Also only idles with choke on. has anyone dealt with this prob before?