Had the GP out for the first time since changing the engine.
This motor has an Electrex ignition setup. It's supposed to be an AC setup with the small BGM type regulator.
I've wired it as per a 'normal' DC ignition with two yellows to a Podtronics / Wassell type rectifier. Everything checked out DC lights horn etc. Today though it blew the headlight bulb straight off as soon as I switched it on with the motor running at tick over. The bulb didn't seem any brighter than normal before it popped. Tail light, sidelight and rear light are OK.
Across the battery it has 13.6V at tick over and with a good rev that goes up to about 14.4V which is kind of what I'd expect.
Any thoughts on what to check?
Also has anyone had any success with getting a SIP speedo to work on this set up?