[StreetracerJay]

I have a 2004 cbr 600 f4i. The owner before me Changed the rear tail light to a led one with built in turn signal. My problem is Im getting a constant 12 volts all the time to the turn signals and its making the yellow stay on all the time. When the yellow is on it cancels out the red led and it makes my running light and brake light not work. So now I have them unpluged so I can have my running and brake light.I also have the front led turn signals also and they stay on when The bike is on too if that is messing up something like a relay. Please help!! Thanks.

[Ammocbr]

It simply sounds like they wired it wrong. If you are getting a constant 12v to the turn signal you need to find the wires coming from the turn signal switch and splice into them. This should give a switched 12v supply that will only turn on when you hit the switch.

[StreetracerJay]

Yea I found the problem it was in the front turn signal. The guy crossed the wires with the turn signal relay making my rear turn signals stay on all the time. Thank you.