Hello, I just picked up my used Sporster and find out that 3 of 4 of turn signals are not working. The blinking arrows on the spedometer panel works, but the left looks a little weak. Would you guys put me on the right direction?

 

Hi from the UK and welcome to HDF. If you bought it from a dealer take it back, they should all work! Check all the bulbs, to confirm they are all OK. Does the bike have any mods, such as different bars or internal wiring of the bars?