I have just a hair over 17,000 miles on the Blue Streak and it has just developed a new, and quite disconcerting, sound. While riding I get a fairly loud zipping sound from the left side. It sounds like a loud metallic zip tie being closed. It only lasts for a second or two and recurs every few minutes. It may be from the clutch but doesn’t last long enough to track it down. Has anyone else had this happen?