sled is a 1999 SRX 700. Riding in deep powdery drifts yesterday, and occasionally, after a long period of time with the snow coming up over the hood, the sled would begin to run badly, almost as if it had fouled a plug. Had no power either. But then it would clear up again. Seemed to happen most times when I had alot of snow stuck on the hood, and it got better after I cleared it off. I did have the black plastic plate for the left side of the hood in place. Any ideas whats going on?