C15 alternator

[dougc]

I have an alternator with only two wires but the wiring diagram shows three,any ideas help please.

[JulianS]

2 wire stator is for a 12 volt system and would have the windings encapsulated in resin and uses a 74 mm diameter flat sided rotor. Output cables would be green/yellow and White/green in colour.

[dougc]

Thanks for your reply, I think my stator may have been modified, the windings are open and the rotor is only 70 mm diameter. I wonder if anyone knows how to return it to three wires. It came to me as a trials bike, so it was running without a battery as a crude energy transfer system. I'm equipping it with full electrics, but got a bit stuck with it when I found I needed three wires from the alternator and discovered there were only two.