Today we hooked the battery up and all of a sudden the motor started smoking so we unhooked it .. we took the cover off and traced where the smoke was coming from .. We then unhooked the yellow wire and touch the battery wire to the battery and it sparked so he hooked the yellow one back up then we took the red one of touched the battery wire to the battery and it didn't spark so the red wire is what is causing it to smoke I have a picture of said wires .