www.4cycle.com is where you'll find everything you need. Info classifieds whatever. Don't spend much. Buy a used complete kart, and see how he does. He'll need a fullsize kart with small seat and pedal extenders or a kids kart. Go to the local kart track and see what's being ran there. A kid kart has a 50cc comer engine. Make sure your local track has a class for it first. If they run rookie purple plate classes and don't have a kid kart class you can't mix them! My user name is Dpassmore on 4cycle.com. PM me there with questions.
David Jr. was 9 when he started,he's 14 now and racing dirt late models and was racing mini stock hondas and Acuras at 12. Karting is the best thing. They get alot of seat time.
