I have a 53 f100 positive ground and need help to see if it sparks i dont have a key and only a 12v battery I jumped the starter and the engine turns over so how do I go about jumping the coil to get spark?
IF it is a 12 volt system, then put 12 volts to the + side of the coil (with obvious negative hooked to the vehicle). You will see if you have spark. Dont do it too long as it could burn points, but a quick test can be done.
Can you give us more info on what your working with?