I have a 1988 Exciter and is in great running shape. Whenever I get into deep snow I have to go like hell to keep going but if I try to turn I cant turn and go up on pne ski and then I have to slow down to get control again and then she bogs. It will not go at all like it is flooding or something. It wont open right up and spin the track it justs sounds like its bogging from to much fuel. Is there anyway to fix this problem, we have some deep snow right now and I would like to ride.