Just pop the bead, a piece of wood and a car or truck works, then get all the water out and reseat the bead, use a rachet strap around the tire and alot of air, or you could spray carb cleaner or something and light it up. Good Luck
Ive done it, just be really careful, you could get very hurt. It works well when your in a pinch. Its how alot of stretched tires are mounted rims that are way to wide.