If you can take some pics of the engine and e-mail them to me :
tom@sycpowersports.com Does it have a 2 spd shuttle shift with rev.? If you can take pics get all angles. If you have the Honda clone CT 50 which is the most common used in the buggies, I may have the parts to repair and if not can get them. However there are some of the cheaper buggies which have the Chinese 50cc engine. If you provide good pics I can tell you what you have. TOM