I have a Kitfox 2 with a 582 in it. The motor was just completely rebuilt, and i finished the plane today. I did the break in on it per Rotax recommendations. Everything was fine, besides finding out that i have a bad EGT probe, and for some reason i have a dead range in my throttle from 4,200-5,200rmp. My main needle valve is set at the 2nd from bottom setting. I took the float bowls off, and the floats seem to be moving freely. I checked the slides in the carbs, and they aren't hanging up at all. It has a slight roughness when i hit 4,200, then it will jump to 5200rpm. It doesn't die out or anything, it just hesitates then jumps 1,000 rpm! I have no idea what could be going on. It doesn't seem to run rough at any other rpm ranges. Any thoughts? Or has anybody else possibly had a similar problem. Im thinking it has to be something simple that I'm just missed! Any help is appreciated!
Thanks!
Andy