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Stutter under 3000rpm, HELP!

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Old Sep 24, 2012 | 10:23 AM
  #31  
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Originally Posted by MuthanLaw
So I think I might have found the more technical explanation for the 3000rpm issue. Your petcock is a vacuum petcock system and if the diaphragm seal on the inside gets a hole rip or tear your vacuum hose will suck air from the petcock into your #1 cylinder and throw off your low rpm air/fuel mixture. I think this is the issue. I will know for a fact later tonight or tomorrow tho.
Ok, this is exactly what I suspected after reading your first post as mine leaks a tiny bit as well. I immediately thought of the vacuum leak issue. I'm going to fix mine as well and let you guys know asap.
 
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Old Sep 29, 2012 | 04:28 PM
  #32  
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Anybody have an update?
 
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Old Sep 30, 2012 | 04:58 PM
  #33  
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Originally Posted by akubat
Anybody have an update?
Going out to tackle it right now. Perhaps I'll have info tonight.
 
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Old Oct 6, 2012 | 10:54 AM
  #34  
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Did you fix your vacuum leak? Has you idle sickness improved like mine?
 
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Old Oct 6, 2012 | 07:19 PM
  #35  
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Originally Posted by MuthanLaw
Did you fix your vacuum leak? Has you idle sickness improved like mine?
I'm such a puke, I never got to it. : (
 
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Old Oct 7, 2012 | 12:18 PM
  #36  
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Nooooooooooopo! I was counting on you
 
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Old Oct 11, 2012 | 05:37 PM
  #37  
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Any update? I'm kinda curious to see how this works out. I have an F3 with a similar problem though not as pronounced and it doesn't cause me any issues while riding. Just enough to hear it. A friend of mine does have an F2, though and his sounds exactly like the rest of you. Mine has a slightly taller profile cam, so mine could just be a slight lope and I always assumed his was too, but this could indicate other issues that would be nice to look into.
 
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Old Oct 14, 2012 | 10:43 PM
  #38  
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Originally Posted by MuthanLaw
Nooooooooooopo! I was counting on you
I'll get to it this week, I promise.
 
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Old Oct 22, 2012 | 01:47 PM
  #39  
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Originally Posted by Wranghondo
I'll get to it this week, I promise.

Any progress? Trying to keep this thread alive until everyone gets it fixed.
 
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Old Oct 23, 2012 | 09:21 AM
  #40  
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Edit: Nevermind, I figured out what you meant. I'm looking into the fix and I'll report back once I have it finished.
 

Last edited by krazymonkeys; Oct 23, 2012 at 09:29 AM.
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