My oldest son is turning 11 this year. He has an Alpha Sports 90cc china quad and some other china 110cc. Naturally, they require a quite lot of maintenance. He’s handy and wants to work on it, but I can’t sit and do it with him all the time, and I don’t even really know that much myself.

Anybody have a recommendation for a good small engine repair manual that will hold a kids interest and teach him the basics?