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It whistles

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Old May 13, 2013 | 06:07 PM
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Default It whistles
When I shut the bike off it whistles. Obviously have an outgoing or intake air issue that has to figured out. Can't stop laughing cause it sounds so bizarre. Maybe it just likes me and whistles to get my attention.
 
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Old May 13, 2013 | 06:16 PM
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What's her name? Is she easy???
 
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Old May 13, 2013 | 06:16 PM
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check the gas cap
 
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Old May 13, 2013 | 06:17 PM
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checkthe gas cap
 
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Old May 13, 2013 | 06:21 PM
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Oh... the bike!
You had me worried for a minute.

Gas cap, maybe? No idea at what negative pressure the cap is designed to breathe.

(Oh sure... steal my thunder!)
 
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Old May 13, 2013 | 06:28 PM
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A very short,or quick whistle as the engine stops? Sounds [on mine anyway] like it's coming from the crankcase breathers.
 
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Old May 13, 2013 | 06:31 PM
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Negative pressure.... Harley Happy Farts...
 
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Old May 13, 2013 | 06:32 PM
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Why the gas cap?
 
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Old May 13, 2013 | 07:19 PM
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Most v-twins do it. I can here mine do it in the intake especially if I park in my shed up against the wall on the right and cut it off. I think the rotating mass compresses on a cylinder and after it stops, it actually reverses the engine a few inches. The other cylinder blows back out the slight breather gap opening in the throttle body and butterfly. Bet if you take off the air filter and take a clean white cotton cloth and spray some carb cleaner on the cloth and clean the butterfly and open around it, it will stop.
 
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Old May 13, 2013 | 07:27 PM
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Talking It's no big deal really.
She just doesn't know the words, so she whistles!


GSF
 
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