The mechanical regulator on my square 4 works ok but I decided to go modern and put on a new AO V-REG regulator on
I run on 6 v positive earth and the swap over is (should be) simple, however on start up - no power getting through the unit. Ammeter needle is in the middle and the red dot ignition light stays on.
I thought I may have made an error on fitting so went back to the mechanical regulator and the bike charged as normal.
I have bought the right unit - positive earth etc but it wont work? Any ideas anyone. I assume polarity , field and dynamo outputs must be okay as the mechanical unit works fine. I suppose it could be a duff unit, but I thought these were reliable.