i got a 12 volt coil for my ignition system to eliminate the ballast resister, so I have one wire from alternator to ammeter from meter to battery side of starter switch/ relay on the tractor body under battery, then another from ammeter to ignition switch for power and then to the plus side of coil and no spark coming off center wire on coil that goes to distributor, I even use a piece of jumper and held the end to see if it bits me when the engine is turning. i tested both side of the coil with a test light and had power i thought it would have start or spark should have jumped to ground but nothing can someone give me some advise and thank you much