My daughter and i just returned from about a 150 mi trip today. About the last 50 mi or so evertime I droped off the throttlei would get a low whoooo sound. I disappears as soon asi get back on the throttle, but sometimes you could hear it even when slowing to a stop with the clutch in....as soon as your stoped the noise stops....theonly wayreally explain the noise is it almost sounds like a break squeal but lower and less pronounced.....anyone else ever had this happen??? ED.

 

Check belt tension.