When I got my twin it was fitted with an Alton generator but this seemed very poor, it turned ouut to be an early 3 phase one, I spoke to Paul Hamon and he said he would do me a part exchange for a modern single phase one for £ 140 plus I would need a new regulator as well. This seemed to be a bit expensive to me and involved sending things to France and back so I looked around and found a firm called Hawker Electrical who did a rebuild kit for a Lucas dynamo for
£ 103 this consisted of new field coil, armature, bearings and brushes in 6v or 12v. I rebuilt an scrappy old 60w dynamo and fitted it with an electronic regulator, done 5000 miles now, lights are great not the slightest charging problem.
Unfortunately Hawker seem to have stopped trading but found a firm called Feked who supply all the same parts seperately, have just rebuilt another dynamo for my SS100 replica and everything seems to well made and fits perfectly.
Chris
Chris, thanks for the info. "Feked", not sure I could bring myself to buy anything from a company called "Feked". Not with my luck. Perhaps, I overdosed on Mrs Brown's Boys at Xmas. I remember avoiding buying a bike with the letters FKD for the same reason, yet I never considered myself superstitious. It just shows what you can rebuild though and I do confess to wondering what bits could be cobbled together. Hope your not offended by my reply!! Have a great 2014.