Sounds maybe a bit similar to a beeping we had over on the N1K forums. The general consensus is that it's a "normal" thing on a hot day with a full gas tank. IDK what yours sounds like, but it may be something along those lines.I noticed a beep from my bike today as I turned on the ignition.
It was very subtle and I think only sounded once. I've heard it a handful of times during the years I've owned it.
And I'm not getting any errors.
What could it be?