I have a 1980 GS750E that I did a complete restore on. cranked it Saturday, it ran good and all lights worked. Had to remount right front turn signal and lost all power. Have checked all fuses, all are good. Battery has 13.5 volts and have not seen any arc marks, just wandering if anyone has ran into this,Thanks for looking

 

Check your black/white ground wire the front left and front right have a common ground which is or should be black/white