My output shaft bearing might be gone, and I'm going on a 9 day trip to the mountains on July the 7th. Been feeling and hearing a little bit of noise and vibration, but in the last couple days it has gotten much worse. At 2000 rpm and a light throttle the foot pegs are really vibrating and the noise is plainly audible now. As other people have described, pull in the clutch lever just enough to put a little pressure on the clutch and all the noise and vib. goes away. Have called three dealers and no one will admit to having ever heard of the problem. Guess I'll have to trailer it up to Myers in Asheville Saturday and see what they say.