I’ve got a high frequency vibration that I don’t think was there before I did the 48,000 mile service. Bike seems to run strong but buzzes excessively it’s better 3-3500 rpm over 4 it’s pretty bad and uncomfortable. I’ve set throttle bodies several time myself and haven’t changed anything. When I set rocker end play I accidentally got them to tight and think it might have held an intake valve open I remember hearing a funny intake noise. Shortly after I checked them again and realized my mistake and reset them and haven’t heard that noise again. Not sure if my vibration is related or maybe have a weak stick coil or something.