I cant seem to find the right belt for my snow blower. I need the belt that drives the dual stage and auger. The first belt I bought smoked when I put it on. It wouldn't slip when the handle was disengaged. So I assumed it was to small of a belt. When I got the second belt it fell off right away because it was too loose. I need to know if there is something I am supposed to adjust something when I change belts.