My bike, an SXV550, has a bit of a reputation and no one in town wanted to touch it. When it needed service I would drive four hours to SoCal, this got old. After years (literally) of asking around I was told to stop by Fastline Performance and talk to Jeff. He fixed my bike and cleaned up the fuel map. The throttle is like a rheostat. From here on it doesn't matter what my bike needs, Jeff will take care of it.