Thanks Tony to try and add some more info, the amp meter dose nothing well not upwards anyway I'm sure it's working as shows a discharge. It had been converted at some time to 12v and has a Lucas small regulator on it. At the dynamo it's shows a fluctuating voltage from about 2v to around 6-7v when revving, it also shows shame at regulator input soon as u pull the bat lead off the output on the regulator drops to nothing and it dies
Thanks