Yep I get that. This was the usual ' hmm why are the lights dim' and the ammeter wasn't balancing/charging to match. Also people telling the brake was dim. Then it started showing an usual symptom of needle rising with the revs just moving into charge then dropping back, rinse and repeat. Now no charge on the ammeter and with the regulator output wire(brown on the DVR2) wired as per Mike's instructions I am only seeing 4 volt output, steady,but only 4 volts. I will talk to Mike more but prob send it back for testing to rule that out, but with my limited knowledge of the black arts(electrics), I can't see what else it could be, I will prob wire another earth in just to be sure but that's clutching at straws. Also today I shall purchase a new battery.