My bike is a 92 FLHS. I'm having a issue with my Turnsignals. The left side both front and rear flash fine. On the right side when I press the button on my bars the front and rear flash once and stay lit. When I press both buttons they all flash as hazards. I'm guessing it's the flasher module but not 100% sure. Any thoughts. Thanks, Todd

 

have you done any upgrades, modifications, or replaced anything with the lighting?

 

1990 FLHS here, owned from new. Have you tried swapping bulbs around, to see if that changes anything? Bulbs can fail over time and do odd things. You could swap the wiring over, left side to right, to see if the problem changes sides. If so your flasher unit is defective. If not it is more likely there is a minor electrical problem in the right side wiring.