Here's a picture of my son's El Burro. It started life as a "Super 8" I think, but when it came to us it was no more than a frame, front fender, axles and handlebars. We got lucky and a friend had an NOS front flotation rib tire and the rest we scrounged or fabricated. He wanted a CVT system so we built a mount & jackshaft setup, had to reverse the rear axle so it drove from the right to accommodate the clutches. My son got the Briggs from a gocart place. The seat was going to be temporary as we were going racing the next weekend and didn't have time to do it properly, same for the chain guard ( they're still like that a year later).