I have an 8N, front mounted. Started great, then died out after about 15-20 seconds. The wires from the key switch smoked - insulation melted. Replaced switch with new one, same thing happened. Scary. Starter works, ignition works, battery good. I'm guessing the smaller wires on the key switch are the weak link in the electrical system, and the trouble is elsewhere. Can't find the trouble, can't plow the snow. Need Help ! Thanks.