black/yellow

Good day everyone. I'm trying to install the shift light pro on my RC390. I think I found where the crank position sensor connector is. But I'm not sure which wire is the right one which transmit the rpm. Is it the green wire or black/yellow wire? Could anyone let me know or take a photo to...

On the right side of the frame is located a two wire plug that is connected to the other end that merely loops back upon itself. From the harness, one wire is blue/purple (or blue/pink) and the other is black/yellow. The black/yellow loops back upon itself on the removable side. Does anyone...