Joe asked:
This might sound odd but my Harley makes a chirping sound that sounds like a bird and it comes from the exhaust. Does anyone know what causes that? Is it caused by a vacuum leak or what?
Our answer
Steve....we'd like to help but we don't know. I have read of many Harley Davidson riders reporting a chirping noise coming from their exhaust so you aren't alone but we've never experienced it ourselves.
If I had to imagine then I would guess that it is either actually a squeak that may sound like a chirp or it may be something inherent in the way the exhaust passed through the baffle. Let's see what the readers come up with to fix your problem.