Coleman 200 cc Mini bike with headlight

Coleman 200cc mini bike, hardly used, bought at Princess Auto for $975 3 yrs ago, maybe 20 hrs max, tires still have nubs on, our youngest kid is 16yrs old and 170lbs, bike does not go fast enough for him( it is still governed). Had to weld headlight clamp on as we were on a rough road and it shook loose, chain was rubbing on cover for a while before I caught it, only partially rubbed in it from the inside, is good now.Tires have never went flat.