The battery reads 12.4 volts and slowly climbs when running . Shouldn't I be reading 13.? when running at 5000 rpms It drops when revving, into the 11's . Checked the ac volts out of the 3 yellow wires from stator all at 50+ volts at 5000 rpms and ohm readings on prongs on rectifier regulator all read good . replaced rectifier same readings. Ground from rectifier cleaned.
does there need to be a another ground to frame besides ground to starter case?
Thanks in advance for advice.