My xt125r yamaha wont run when relay which runs headlight is in it starts but cuts out and ignition goes out if i take relay out ignition back on and bike runs but no headlight carnt seem to get to the problem and sick of bus HELP

Hi,

I doubt if you will get much in the way of replies. My initial advice would be to have a look at this thread and a please woudn;t go amiss.

Sounds like the relay is knackered or you have a short somewhere in the headlight circuit.