5.5 HP horizontal shaft engine. Bought this used to make a go kart but ended up buying a complete go cart with an engine so this one wasn't needed. It's in excellent condition, was barely used by prev owner. Has a pull start, manual choke and throttle lever. 5HP power fist engine at Princess Auto is $190 after tax, 6HP is $213 after tax). Text, email or call. $120 OBO