my lights on motorbike dont come on?

Hi, to put it simply, the regulator keeps a steady voltage running through the wiring regardless of the output of the alternator, therefore unlikely to have an effect on the lights.If your bike has a fuse box check for blown fuse in the lights circuit.

Chris P.Duck
March 2011

what make /model/year is it ?

adam bike doctor(of milton keynes motorcycle centre)
March 2011