popping on decel.

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Jul 22, 2009 | 02:30 PM

fsjeeper

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popping on decel.

when my bike is decelerating the exhaust starts popping from about 7000 to 5000 rpm, i hate it and it just sounds terrible, is this caused by timing being out?, if so how do u check the timing. thanks.

Jul 22, 2009 | 02:37 PM

Dissevered

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From: Pittsburgh, PA

I am having the same problem. Trying to get answers out of some pro tuners on another board at the moment. It is either needle jets or pilot jets that are too lean.

Jul 22, 2009 | 06:27 PM

anotheraznguy

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i have the same issue but i never linked it w/ being crappy. but then again my car also does that..

Jul 22, 2009 | 11:10 PM

fsjeeper

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well if either of u figure it out make sure u post it

Jul 23, 2009 | 12:05 AM

ckxtreme

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Are you running an aftermarket exhaust? If so, the jets in your carbs are the wrong size.

Jul 23, 2009 | 02:34 PM

cajunlowrida

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Quote:

Originally Posted by fsjeeper

It's pretty much impossible for your bike to jump timing. The only way that would happpen is if the timing marks werent lined up on installation

Jul 23, 2009 | 03:30 PM

Dissevered

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From: Pittsburgh, PA

check for exhaust leaks from your headers to the pipe. beyond that you are lean. Try turning pilot jets out in 1/2 turn increments.

Jul 24, 2009 | 02:49 PM

fsjeeper

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i have a D&D aftermarket exhause on it, also i do have a small exhaust leak on the manifold right near the head. so this may be a cause?

Jul 24, 2009 | 06:33 PM

Dissevered

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From: Pittsburgh, PA

Quote:

Originally Posted by fsjeeper

i have a D&D aftermarket exhause on it, also i do have a small exhaust leak on the manifold right near the head. so this may be a cause?

Definitely

Jul 24, 2009 | 06:55 PM

#10

PlayfulGod

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Joined: Jun 2007

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From: Dalton, GA

Quote:

Originally Posted by Dissevered

Definitely

+1 exhaust leaks are the #1 cause for popping exhaust. If its bad enough it could even damage a valve.

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