A Yerf-dog go-kart is a brand of go-kart produced and sold by a man named Godfrey. The go-karts were mainly sold through mass-merchants as well as specialist dealers. As of 2014, the go-karts are no longer in production and the company itself is no longer in business.
The Yerf-dog go-kart used special spare parts that differentiated their products in the market. During its time on the market, spare parts for this product were difficult to find due to a majority of them being sold through mass-merchants. Engines used in the Yerf-dog go-kart include the 150cc Howhit engine and a lawnmower-style engine.