So why would only my right headlight turn on?

[Mo Power]

So the Swinger looks like its making a recovery but when I pull the light switch out the only thing that turns on is the right headlight no parking lights, no brakelights, and no dash light up. Someone please help I want to drive this thing hopefully tonite

 

[pettybludart]

Sounds like it could be your ground wire?Is the motor ground to the firewall?Little ground on battery?Maybe a ground on rad support?Start searching!