I think your really blowing it out of proportion, like saying 998 crack in head, now everybody is saying it. Mine has close to 4000 miles with 270 tune no problems, You have to take care of and watch parts because your running high tunes, full throttle ,hit brakes, hit throttle full again, then when #*$&@ breaks get on the web and tell everybody, dealers my way isn’t seeing this. I think we should watch for the Yamaha spiders flying apart saw that with my own eyes. Mine doesn’t rattle either. Isn’t Yamaha belts exploding because the clutches suck, cheap Chinese aluminum. You sound like a old lady at a bingo game ,gossipy