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Old 11-25-2012, 02:56 AM   #1 (permalink)
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jetsons noise

does anybody know what part of the engine on the st 1050 makes what i call the jetson's noise (cartoon). that wine, shrill, whistle at low revs. what is that?
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Old 11-25-2012, 04:24 AM   #2 (permalink)
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Quite a lot of that sound comes from the pipes, that sound went away on mine after installing aftermarket pipes.


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Old 11-27-2012, 06:46 AM   #3 (permalink)
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I always assumed it had to do with the induction system.... Put loud pipes on and you won't hear it much...
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Old 11-27-2012, 01:15 PM   #4 (permalink)
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I've never worked it out but sounds kind of cool - like a turbine

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Old 11-27-2012, 02:38 PM   #5 (permalink)
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It's usually caused by gear whine. You want to hear a Jetson's mobile? Take a listen to an ST1300. I've heard they attribute to the gear-driven crap inside.
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Old 11-27-2012, 11:30 PM   #6 (permalink)
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It's the straight cut primary gears. Don't worry - be happy - ride.
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Old 11-28-2012, 12:40 AM   #7 (permalink)
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BTW, I'm not complaining, I love the symphony of different sounds that give the ST the soul. I have fav sound periods, sometimes the bark around 3K, sometimes the big induction just before things get going...

straight cut gears CLB? I thought that would be more a wine eg reverse gear in most manual gearboxes on cars...

cool, thanks all...
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Old 11-28-2012, 03:37 AM   #8 (permalink)
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The same noise come from the back if an early Volkswagen beetle, change the pipes on them and they sound like a Subaru



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