why does my bike whistle(video inside)help

If your busa whistles, you may want to put her in panty hose? :dunno:

I had a girl friend whom I took skydiving that whistled on the way down.

I put panty hose on her and ended the whistling! :whistle:
 
Water pump is my guess, sound definitely has a speed change with RPM and that is a very indicative sign of a bearing having issues.
 
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