I've really enjoy riding my 2007 Yamaha Road Liner, but since I couldn't get enough on a trade in for a Raider, I put $2,000 worth of performance parts. Dynaflo V, Cobra pipes, KG air filter and a Dunlop 55 series rear tire rather than the 60 series. It had great performance before, but I just wanted to see what I could do with a small investment. Now it has fantastic acceleration and a very noticeable G-force against the seat, not to mention the ease of rear tire spin from a stop. Here is my question, at 117MPH and 5400RPM the engine begins to flutter like floating valves; I'm wondering if there is a throttle limiter? It speeds up quicker to the red line now, so I never noticed it before because I was accustom to listening to the engines harmonics and shifting accordingly.