I read all the info in these threads but I think my noise is different. I would discribe it as a bird chirping. It is engine related as it only makes the noise at cruise speed in any gear. Most noticably in 4th and 5th with little load on the engine. As soon as you give it some gas, it stops, and if you clutch, it stops. It started around 400 mile and has become louder to now at 1400 miles.
I had the shop look for hose / vacuum leaks, but nothing showed up.
Does this make any sence to anyone ? It also drives me nuts.
2009 RSTD
Ran the fatory oil to 600 miles, then change oil to 20/50 synthetic V-Twin Mobil 1
Didn't make any difference.
Gary