aftermarket turn signals

Hi guys I just got a 2008 wr250x and trying to fix my front left turn signal. There are three cables coming from bike (blue, brown and black) and only two from aftermarket signal. How should I plug it?

Your after market signal has 2 wires then your gonna loose your running lights I hope you know. Hince the 2 wires, blinker and ground.

Not sure on the color at the moment, cut the blue one and see if the blinker or running light goes out.

Thank you guys, right side is green and black, left side is brown and black.
Now I have another issue, left side blinks faster than right. Why????
Thanks in advance

Turn signal relay for that side is going out or voltage drop. Double check your connections and check voltage comming out to each blinker. Can test at connections you made.

Blue wire on WR is for running lights. Connect black to black, then the other wire to what ever other color is on the signals.

To get them to flash right, you will need an aftermarket flasher relay. The replacement you got is likely LED, and the stock ones are not. Or you can get a different replacement that is not LED.