You need a spark for your golf cart to run. Sparks are generated through an electrical charge that your Yamaha ignition coil and ignitor transmits. We stock these Yamaha ignition coils for G1, G2, G3, G5, G8, G11, G14, G16, G20, G22 and G29 the "Drive" gas golf cart models. When replacing these parts we also recommend installing a new spark plug.