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Whining noise

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Old 06-25-2012, 01:13 PM
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Default Whining noise

Wll I fired up my 2007 nightster after meeting me wife for lunch. It fired up just fine but then I notice a high pitched whining noise. I sounds like its coming from the tank. Possibly the fuel pump? It primed just fine and sounded normal before I fired it up. Has anybody had anything like this before? It sounds almost like when you run a wet finger on the top of a wine glass. Thanks guys.
Jon
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Old 06-25-2012, 01:16 PM
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Vacuum leak somewhere maybe?
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Old 06-25-2012, 01:19 PM
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yeah i have the same sound from time to time, I read some post that it could be the hose inside rubbing against the tank, not sure if thats true or not.

Last edited by jlilnc14; 06-25-2012 at 01:24 PM.
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Old 06-25-2012, 01:25 PM
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When mine starts whining I back-hand it one good time and it stops!
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Old 06-25-2012, 01:27 PM
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Are you sure the whining sound isn't coming from your wife?
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Old 06-25-2012, 02:22 PM
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There was a Service Bulletin on the early EFI Sporties (that means 2007) that involved, I believe, rerouting the hose in the tank. As installed, the hose in the tank rubbed on something which eventually wore a hole in the hose which resulted in a whining noise from inside the tank.
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Old 06-25-2012, 03:14 PM
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Quote:
Originally Posted by JonFMJ View Post
Wll I fired up my 2007 nightster after meeting me wife for lunch. It fired up just fine but then I notice a high pitched whining noise. I sounds like its coming from the tank. Possibly the fuel pump? It primed just fine and sounded normal before I fired it up. Has anybody had anything like this before? It sounds almost like when you run a wet finger on the top of a wine glass. Thanks guys.
Jon
My old lady is trapped in your gas tank. Please send her home immediately. Thanks.
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Old 06-25-2012, 05:12 PM
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Quote:
Originally Posted by cHarley View Post
There was a Service Bulletin on the early EFI Sporties (that means 2007) that involved, I believe, rerouting the hose in the tank. As installed, the hose in the tank rubbed on something which eventually wore a hole in the hose which resulted in a whining noise from inside the tank.
Thanks I'll look that up. And thanks guys. I looked like a jack *** when I busted out laughing reading your replies haha
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Old 06-25-2012, 06:16 PM
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I have the same issue, and it was really bad this afternoon. I also suspected the fuel pump. It usually goes away after a few miles, but today it stayed on until I shut the bike off at home (about six or seven miles).

I seem to notice it in the afternoon as opposed to any other time.
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Old 06-25-2012, 07:54 PM
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Took the bike out and got gas since my fuel light had been on for about twelve miles or so.
Didn't hear the high pitched whine afterwards.
So I think it does have something to do with fuel level and the fuel pump.
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