I have a 1989 Polaris Indy 400 that was working great until this week. It seams to be getting to much fuel, if my tech takes the bolt of on the case ful comes out. There is also some wetness on the exhaust. Repair guy cleaned the carbs, needles etc and the skidoo ran for a few minutes then stalled again. He seams to think that there is an issue with the hummm what are those called....needle gates, flood but those were replaced last year by the previous owner. Can this be, can it be the same issue again?