So, one of parts I had to buy to get this bike running was a regulator rectifier. I'm aware of the AC/dc outputs of it and what they supply. However I burn out light bulbs each time I use it. I put a meter on the headlight to see what I had there. It was 13.5v at idle and over 18v at high rpm. So to me it seems it's not regulating. Does that mean it's bad, or is there other causes? What could it be? I also have a spare stator, but I rather not pull it unless I knew that it was the cause.