Part got in this afternoon got her wired up everything on the tach checked out but other than needle going to zero when power is applied, which it is supposed to do and not recording rpms. I checked the regulator output and it was only 1.5 volts open circuit. Somewhere I read it had to be at least 2v to trigger the tach. Ohming out the circuit I got a diode indication which one would expect.
I didn't suspect a problem with the rectifier/regulator module as it was putting out 14.5v on a fully charged battery at 1500 rpms...measured with a laser, digital hand held tach. Never saw a schematic on the circuit in the module so have no idea as to what is involved in the tach signal delivery. Thought it was just taken right off the rectifiers and was just measuring the ripple voltage and 2 volts or so sounds pretty good for a 6 element stator into a bridge rectifier.
Rectifier/regulator was 25 bucks, free shipping and delivery within the week. Going out tomorrow anyway on the shakedown cruise. Just wanted to know the WOT RPMS but if I get ansi I can pop the bonnet and measure with one hand on the steering wheel and the other hand with the digital laser....see if I can hold still long enough to get a reading. Having the laser put a dot on the spot read so I can see if I'm hitting the reflective tape applied to the flywheel helps.
