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Old 03-31-2013, 04:52 PM   #1
monstermanus
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exhaust servo.

what does an exhaust servo do? is it bad if its not hooked up. I was working on exhaust and saw that it wasn't engaged. so I hooked it back up. hhhhmmmmmmm. I ride a ducati streetfighter any help would be appreciated.
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Old 03-31-2013, 06:04 PM   #2
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There is a thread at Ducatims.com about this. The consensus is that the valve is only for noise reduction and only operates in neutral.
I'm not disconnecting mine unless it causes a problem but apparently many streetfighter owners have, with no ill effect.
Here is a link...


http://www.ducati.ms/forums/138-stre...a-answers.html
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Old 03-31-2013, 06:09 PM   #3
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I should add that this is not the only reason mfr's put exhaust valves in the system, apparently it IS the reason Ducati did.
Some bikes have a valve in the exhaust to increase low end torque and it opens as RPM rises to allow more flow.

According to the thread linked above, Ducati put this valve in to pass an EPA requirement for noise. Since, according to the thread, the test is done in neutral the valve doesn't operate when the bike is in gear.

Another option would be to call Sergio at Houston Superbikes and ask, he is a member here or you could PM him. Screen name Pachuco.
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Old 03-31-2013, 06:40 PM   #4
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yeah sergio is a friend. I will callhim to see whats up. thanks
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Old 03-31-2013, 07:02 PM   #5
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We typically disconnect the cables.
The valve is there primarily for noise reduction.
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Old 03-31-2013, 07:09 PM   #6
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does the noise reduction equate to loss of power?
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Old 03-31-2013, 07:11 PM   #7
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Quote:
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does the noise reduction equate to loss of power?
No because the valve only operates when the bike is in neutral.
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Old 03-31-2013, 07:45 PM   #8
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Quote:
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does the noise reduction equate to loss of power?
Nope, just loss of sound
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Old 03-31-2013, 08:11 PM   #9
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thanks guys!
how was the rest of the ride bevo?
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Old 04-01-2013, 06:09 AM   #10
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Quote:
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thanks guys!
how was the rest of the ride bevo?
It was pretty sweet, Orsak's, however, was closed
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