I only had this noise one time. I did find my oil was on the low side. HD says its normal from time to time?

LOL, "HD says..." Now that's funny!!!! That's what they always say!!!! Everything is either "normal" or they just can't find the problem your talking about until it has done the damage to the bike and/or just gone past the warranty.

I've been reading a lot of posts about whining noises and gas tanks. Sounds like the low bidder in China is providing the fuel pumps as usual.

John