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Decel Popping

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Old Apr 8, 2011 | 11:06 PM
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Default Decel Popping
I like my Decel popping. I have read you can tune it out, but I like the noise. What is it and does it hurt the motor in any way.
 
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Old Apr 9, 2011 | 12:25 AM
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Good question ...seems that if you rev it high the motor "cleans up" and it goes away if you've been slow cruising. Is that my imagination?
 
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Old Apr 9, 2011 | 12:58 AM
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either you have exaust leak. or you are running lean
 
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Old Apr 9, 2011 | 06:39 AM
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all they do to tune it out is turn off your jake brake.
 
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Old Apr 9, 2011 | 12:30 PM
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Too Lean? Thats not good. Im like Homer Simpson when it comes to mechanical stuff, Can someone explain to me why this would make it have some Decel Popping. Thanks! Im not goin to respond to the jake brake till I figure out if some one is messin with me. LOL : )
 
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Old Apr 9, 2011 | 12:37 PM
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Originally Posted by rk10
Too Lean? Thats not good. Im like Homer Simpson when it comes to mechanical stuff, Can someone explain to me why this would make it have some Decel Popping. Thanks! Im not goin to respond to the jake brake till I figure out if some one is messin with me. LOL : )
Lean. Causes your engine to run just hotter so that you are hearing detonation.

Way too lean over time, and you will melt a hole in the piston top. I found that out with a 2 stroke ATV.............Twice
 
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Old Apr 9, 2011 | 01:13 PM
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A rich mixture can cause popping, too. See this thread among others:

https://www.hdforums.com/forum/touri...n-decel-3.html
 
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Old Apr 9, 2011 | 01:20 PM
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Mine did that after I had the 103 built, and it was happening at about 1900-2100 rpm's. When I asked the tuner to fix it he was telling me that when you go into a decel, the injector now closes because there is no fuel needed, and what you hear is the popping sound of the fuel shut off, and the louder the pipe you have the more noticeable it is.
 
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