Chosen Solution
motorcycle is suzuki gd110. if the headlights are off, the engine won’t start. if i turn on the headlights, the engine will start but will stall when i give it some gas. it will only run if the headlights are on full high and the turn lights are on. horn is weak, turn lights don’t blink. no power to any light when engine is off. rectifier has been replaced and battery is fully charged.
@mikeyjr64 the only commonality between all those issues is either the ignition switch or the wiring harness. I would start by checking the wiring for any shaved or exposed cables, After that check your ignition switch.