IFFFFFFF the Generator itself is properly grounded,,,,,,,,and IFFFFFFFFFFF all else is properly wired,,,,,,,,,,,,and IFFFFFFFFFFFF you dead ground the Gennys FLD post (by passes VR's charging control function and sets the genny for max charge) and IFFFFFFFFFFFFFF you by pass the VR's Cutout Relay (just in case its bad and not closing) by jumping BAT over to ARM and theres still no charge,,,,,,,,,,,, theres a good chance the Genny itself and not the VR is the cause of no charge. I assume you polarized the genny before start up ??? and all is at the correct matching polarity??? and the Ammeter is working and properly wired in series effectively between the VR's BAT terminal the hot ungrounded battery post ????
If you put a voltmeter on the battery if its a full charged 12 volt it would read around 12.6 volts (half that if 6 volt) and when running at fast RPM if the charging system is good it should eventually rise to at least 13 up to near 14 volts EVEN IF THE AMMTER WERE BAD provided theres still a good circuit from battery to genny
Did you try my Motor tests ???
8. MOTOR TEST. You can Motor test the Gen. If its grounded and you remove the belt and apply hot battery voltage direct to its ARM Post, it should motor n run well (Armature n Brushes and Commutator and bushings likely okay). Then if you ground the Field and it slows down some, the Fields probably good. If it passes both those tests, it should charge, and if not, it may be a wiring or battery or grounding problem.
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