Electricity is foreign to me, I hate it lol... Bike is an F2. I took out the signals and lights for the track, and am trying to sell the bike now so I am putting them back in. They worked prior.

The 1 rear turn signal works fine, the other does not. With the bulb out, the signal blinks and works fine on the dash. With the bulb in, both the dash lamp and the signal bulb light up an don't blink/flash. The signal bulb when lit up is also lit pretty weak. What would cause the one side to stay lit instead of flashing?

 

its very hard to say. Electrical gremlins are extremely difficult to diagnosis over the internet. However, it sounds like you may have a bad ground. At least, I would check all of the grounds first to make sure you have good contact.

Also, I would check to make sure you have the correct bulb in. those style bulbs come in single, and dual filiment types. the rear signals should only take single, where the front signals will take the dual.

 

I know its not the bulb. I used the same one from the other side, old one(still worked) and new one all do the same thing. All the bulb code numbers match too, so its all the same.

The only thing I have checked this far is that from wire to bulb to wire ,where the wires quick connect into the harness, there is continuity. I switched it to volt mode and the side that works reads off a .8 while the side that doesn't work gets nothing. Leads me to believe it is something on the harness side. Where though I have no clue, I don't want to rip apart the whole harness. Any pointers on where on the harness to look?

 

Are these stock signal lamps?

sounds like you have the wrong bulb in that one that is acting up. Pull the bulb from the side that is acting correct and switch it to the other side, see if it behaves.

It also could be a problem at the front signal wiring. the same circuit feeds both ends.

Stock wiring in the rear:
Green=ground
solid blue or orange is the positive for their respective side blinker

In the front the colors are the same for blinker function, and adds in the same color wire with a white stripe that handles the running/park light function.

 

Yeah i switched the bulbs, still was a problem. buuuut... The fronts are not connected yet. Maybe that is the issue? Still weird to me because R side has no front yet rear flashes, and L side has no front and rear stays constant. I'll get them hooked up tomorrow and see how it goes. The rear are aftermarket by the way.

 

I'd inspect the front bulb plug/housing connection area. It sounds like somewhere the 2 circuits are getting tied together. When the ignition is on the parking light circuit (white striped) is powered. When you turn on the blinker, the blinker relay module shuts down the power on that circuit, and pipes power down the solid wire and blinks.

So somewhere either the striped lead and the solid lead are bleeding over to each other, or something in the blinker relay is fouled up maybe.

 

More info... got the front bulbs in. Everything Right side works

Scenario 1:Front bulb out, rear bulb in
Outcome: Rear bulb + Dash light constantly lit at half brightness, does not flash

Scenario 2: Front bulb in, Rear bulb in
Outcome: Front bulb works normal, Dash not lit unless signal on, Rear bulb lit constant at full power (not right) but also flashes with signal on.

Wtf is my bike smoking? lol.

 

if the wiring harness is in good shape - I'm leaning toward either a problem in the switch maybe - but not likely, or the flasher relay is not working properly. the flasher relay handles turning the parking lights off while the blinkers should be flashing, and making them flash properly.

Try tapping the flasher relay with the handle of a screwdriver or something while you have the left blinker on.

 

I'm dumb, sorry for wasting your guys' time lol. Everything is aftermarket on the rear lights so they never matched the wire colors. I never kept track when I removed the signals 3 years ago for the track. I thought I could just hook green to green brown to brown etc... when actually I had the rear signal half plugged into the plate lamp and half plugged into the right spot, which is why it ran constant and flashed haha.

This is why I like to do my own work, because I would have went the extra step to make sure all my new wire colors match the harness colors.

Sorry, thanks!

 

Glad you figured it out. I spent most of high school and college as a car stereo/security installer - wiring and troubleshooting wire harnesses is pretty mundane for me, but I know it freaks a lot of people out.

Yeah - either same colors, or at least labeling leads is always a good idea if possible.