My 08 RKC with 2100 miles has a noise that sounds like waa waa waa during coasting and slowing down for a stop or corner. I can pull in the clutch and even go to neutral and it is there. It seems to be speed related since it gets slower as the bike slows. Any ideas, guys? The bike runs and rides great otherwise.

 

Front Brake rotors, touch the front brake easy and see if it quits.

 

No, it is neither the front nor rear brakes.

 

Check the final belt tension and the condition of the rear pulley and tire.

 

When I had that noise it was the rear rotor warped. At 800 Miles.

 

might want to inspect IDS bearing ,there has been a few that have failed,not sure of the noise they make when they fail or if they do make a noise at all ,but still worth an inspection.

 

Virtually all of these failures have been on retrofitted IDS units, i.e., those installed (improperly) on '07 and earlier bikes. That said, it's worth looking into even though the possibility is remote that this is the problem.