Nope. The regulator needs to be 12v. The regulator still needs to be connected Arm on gen to Arm (or Gen) on the regulator. The Field (F) terminal needs to be connected to te F on the Gen. If the regulator is designed for Positive ground, it will either not work, or not work for long on negative ground. Some regulators (US made) can be used on + ground or negative ground. Make sure before purchase. The only changes needed are: 1) Battery reversed 2) amp gauge reversed 3) Light bulbs changed 4) New generator polarized before starting the engine (with all things connected, and the key off, jump a hot wire to the generator ARM terminal, it will spark, hold for one second, then remove (more is not better)). This places magnetism in the field"s iron poles so it charges in the correct polarity. Jim
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