Ive noticed that my bike has a chirping sound that sounds like its coming from the engine. I notice is when Im @ about 4000 RPM in 6th gear. so the bike has a decent load on it, Im not lugging it down, but its not reving real high either. If I give it gas & get the R's up, I get too much wind noise so I cant tell if it goes away. anyone know/have any idea's what this is?? its not horrible, but I can hear it over the valve whine so its not quite either. thanks Bob