My girlfriend brought home a 96' Ez Go 4 stroke. Manufacture Code: D1996. Dead on arrival. I put in a new battery and in turns freely, but doesn't start. I pulled both plugs, each will spark once when I turn on the key and press on the gas, then nothing. Everything else turns and the cart will inch along. One, maybe two puffs from the exaust. I did not have the original key, but I found a key that turn the ignition. I don't know if that has an affect, since the electrical and belts turn when I press on the gas. Any guidance would be appreciated.