Now I'm by no means an amateur when it comes to my nitros, but I've been having trouble with my Genesis. I had it put up for a while, and when I took it out last week, I've noticed that it's sputtering in between 1st and 2nd gear. I've seen videos on youtube with others doing the same thing. At first I thought it was running rich, but I've been experimenting with the needles and I can't seem to get it to stop. I've gotten it close, but still can't get it back to as smooth as I had it before....any suggestions would be appreciated....thanks.