While on a ride today, on a WOT run hat flew off and slammed the brakes then the bike died. was hard to start after that but ran fine under throttle, then when I stopped a few minutes later it was idling rough and died after 30 seconds. The bike runs fine under throttle but idles rough. It quit dying at idle but still runs rough. I don’t have a fuel controller and currently have the stock tip on the muffler. Appreciate any help.