As per above. I've just fitted a cheap Ebay voltmeter to my cb200. I've wired it into one of the feeds into the horn and a direct wire to the battery. The reading is around 12.4 on the turn of the ignition key and similar on tick over. We're enjoying a little spike of spring like weather here in England so I had the chance to take it for a spin today. Through the gears and the revs I'm getting as high as 16.9 and as low as 13.4 and pretty much everything in between. Does this mean my regulator is faulty? I might add that the bike is running really well with no sign of trouble.