Thismorning i walked out and cranked my bike while standing beside it. I twisted the throttle and raced it upand let go. It didn,t spring back like itshould and the engine reved high. I twisted it back and it came down toidle. I shut offthe inition and did it again the throttletwisted back slowly. Didn't springback. It is a 13 RG ULTRA. Isit the throttle sensor.