headlight out

[mk2davis]

Last night I realized that my headlight doesn't turn on and my instrument cluster doesn't light up. Brights don't work either. Idiot lights do work. My fuses look good.

Any ideas?

[DonTZ125]

If some of your lights are suddenly out and the fuse is still good, you may have a fried voltage regulator. Measure the voltage across the battery terminals at 3000 rpm; if it's higher than 15.3vdc, the VRR has failed high and is trying to destroy every electrical component in your harness.

[mk2davis]

Turns out it was a dirty starter switch. Who knew the lighting circuit ran through it?

thanks for the help!

[yamaha_george]

Turns out it was a dirty starter switch. Who knew the lighting circuit ran through it?

thanks for the help!

That is why the lights go out when starting so you have max power to tumble the motor :-}