I have a 78 atc 90 thats in ok condition. Ive had heard of people floating these things across ponds and what not, but I have tried it and havent had much luck. I have ballooned the tires up, but no such luck. It will float without me on it but when I jump on it sinks. I weigh about 140 lbs. I know that water is hard on stuff but its still fun. Any tips on getting this thing to float with me on it? Thanks lol.