Mustang Starter

I've converted a lot of tractors from 6 to 12V. Ther are several ways. It depends if you want to run your existing 6 volt starter or not. I usually left the 6 volt starter. A good 6 volt starter will run for years on 12 volts if you don't grind all day and will really spin your engine. Change the battery cable ends so battery is 12V neg. ground. Then you will need to reverse the wires on the back side of the amp guage (all the wires on the - side to + side and vice verse) to make it read correctly. The wires on the ignition coil need to be reversed the same way. Replace the coil with a 12 volt (Nappa IC14) or install a ballast resistor between the coil and the ignition switch (Nappa ICR 150). There were two different generators on the Mustang one with a cutout (2 wires) and one with a regulator. If you have the one with a cutout you can replace the cutout with a 12 volt cutout, it will produce about 14 Volts from the 6 volt generator configured this way. Your other options are to find a 12 Volt generator/regulator or convert it to an alternator. A GM 10SI with a built in regultor works good for most applications. Installing an alternator is fairly easy once you've converted to 12 Volt negative ground. Change any light bulbs!

Tom Dold
Dold Implement
Howard, SD. 57349
605-772-4541
[email protected]