Getting ready to hook up electrics on a 389cc clone, Champion motor. A friend asked about a voltage regulator. I assumed it was built in to the motor. I can not find specs on the output on this motor. Other brands list either 3 or 10 amps. 3 amps and no regulator would be needed, but 10? Could boil the battery. Do I need some sort of regulator? If so, what kind?