I noticed that my back left running light does not come on when I start my bike, but the others do. The turn signal works when I use it so its not an issue with the bulb and I started to get into the electrical system, but its getting pretty complicated. Has anyone had this problem or have any suggestons?

 

Are you 100% it isn't the bulb? Some dual filament bulbs may burn out the running light filament but not the other filament. I don't know for sure because I haven't seen the bulb, but you have to pull it and inspect the filaments for breaks. Even if you do inspect the filaments, the breaks may not be visible. I recommend swapping bulbs from one side to the other as a diagnosis attempt. If the other bulb lights up like it should while on the 'faulty' side, you know the bulb is the problem.

 

I switched the connections in the back and when I did the right side went out (turn signal still worked) and everything on the left side worked. Basicallythe problem just switched sides so that's why I'm thinking the problem is further into the wiring somewhere. Thanks for the reply though.

 

So you changed something. What did you change? Whatever you did, you need to go back and redo it on the side you're having a problem on. Either you pinched a wire or you failed to connect something properly. A short would have blown a fuse and maybe blown the rear light fuse, but since the others are working, I do not know. I recommend redoing whatever you did.