hmmm im not sure i know what your hearing, but on my 250R only noise thats weird ,etc was the dreaded FRONT WHEEL BEARING (squeeak, squeeak. . . .) but it was stopped , for now!
I do though, hear a noise which my guess is, its just a "Vibration noise" , of the front fairings or some part of the plastic Body panel. if i remb right, i here it as im slowing down for a red light,etc @ about 25-30 MPH! Its like a Vibration HUM if anything come to think about it! I dont feel its sumin Bad, or bugs me, so i just wondered if anyothers here, have Hear this Humming type vibration noise? Is that normal on a sportbike... any kind suzuki,honda,yamaha,kawi? cuz of the Plastic body panels... with high RPMs your bound too get sumin Vibrating like crazy and HUM*