Just found this site while browsing ebay for a new engine. Where where you guys 3 years ago when I built this thing?!?!?! We've had lots of fun with it but now my son is driving and it doesn't get used as much. I still take it out and have built a special seat for the tank that my 6year old daughter rides on. I have foot pegs on the forks so it works out really well. Thanks!