My bike has been making a whirring noise for some time now. I finally took it for service and replaced the primary bearing. Still whirring though. Someone suggested camshaft tensioner, but I was told this year model doesn't have one??? It is a constant whirring from start up to shut off, never seems to change going through the gears. Also, if I'm going about 35-40 or so and I gun it it makes a chirping sound????

 

You may want to post this in the Dyna section. It could be your drive belt