two-smoker said:If you're using the original Yamaha harness, not only do you need both front and back turn signals, they need to be the exact same wattage as the originals. Otherwise they won't blink, they just stay on. When we put together one of my spare bikes for my buddy, we ran into that problem. Also, you kinda should run something you can at least SEE from the front. For safety. I'm running bar end signals with a custom harness, using an electronic flasher.