Hey guys, ive got a 07 gsxr 600, and recently ive noticed this hissing noise when riding. i dont hear it when its just idling, but when i get on the gas, i hear it clearly. the throttle also seems a little sluggish in the lower rpm . ive slowed to like 20mph and tucked down to reduce wind noise, and it was still very noticeable when accelerating. i heard it a few days ago, but it was much worse today. any ideas? should i be concerned?
