So my rider friends said my tailights are flickering while im riding. im guessing its whenever i hit bumps. They stay on like normal while im just sitting there, and i've tried to make them flicker by sitting on the bike and bouncing but cant make them flicker. Has anyone had this issue before or know how to fix it. Im thinking its just a loose wire, but to save time i wanted to know if you had any ideas where to look first.

Have you noticed a check engine light come on? That's happened to mine a couple times, so far the Harley mechs can't figure it out. I've also been told that on occasion, one light appears extra bright, as if I'm riding the break. I think it's a faulty connector.