Check this out

[spareparts]

a freind of mine had a later version of one of those things(probably a different manufacture). We had it up on Kerr Lake one summer, the motor was tired, we would get it up on the wake of a boat to make it run a decent speed. It would'nt run fast enough on its own to be exciting, so we just drank more before we rode it. that thing would have been a blast with a little more power