atom bombs popping
soprano13
Posted 2013-01-11 11:13 PM (#129423)
Subject: atom bombs popping


Cruiser

Posts: 71
Bayonne, NJ		Hey guys 09 vision with atom bombs, ness twin sucks, victory stage 1 flash.
I keep getting annoying pop from the exhaust when upshifting only.
Does any one have the same issue?
How can it be fixed?
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rwilly
Posted 2013-01-11 11:24 PM (#129424 - in reply to #129423)
Subject: Re: atom bombs popping


Tourer

Posts: 523
seattle, wa		Everyone with aftermarket pipes on the Vision has this problem although some try to deny it. The louder the exhaust, the louder the pop. It cannot be fixed, it can be lessened to some extent but it will always be there.
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soprano13
Posted 2013-01-12 6:54 AM (#129430 - in reply to #129423)
Subject: Re: atom bombs popping


Cruiser

Posts: 71
Bayonne, NJ		How can I lessen it? What is most effective?

Edited by soprano13 2013-01-12 7:02 AM
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kevinx
Posted 2013-01-12 8:19 AM (#129435 - in reply to #129423)
Subject: Re: atom bombs popping


Visionary

Posts: 1340
Gainesville Fl Home of the Gators		Riding habits Steve. Move your shift points up or down, and see what happens
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rwilly
Posted 2013-01-12 8:43 AM (#129438 - in reply to #129423)
Subject: Re: atom bombs popping


Tourer

Posts: 523
seattle, wa		Try shifitng at a higher RPM, the pops are not as bad.
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20 10 Vision
Posted 2013-01-12 5:25 PM (#129466 - in reply to #129423)
Subject: Re: atom bombs popping


Tourer

Posts: 430
I shift around 3k and the pops are a lot less.
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buddahead
Posted 2013-01-12 7:01 PM (#129472 - in reply to #129466)
Subject: Re: atom bombs popping


Cruiser

Posts: 238
SF Bay Area		I like the popping on decel, call me weird... but I like it. Like they said, the louder your pipes, the louder the decel popping. Basically, you can't really hear them with the stock pipes, and the Ness Honkers sound like cannons. I currently have the stage 1 pipes and the popping is barely noticeable to me.
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soprano13
Posted 2013-01-12 10:17 PM (#129483 - in reply to #129423)
Subject: Re: atom bombs popping


Cruiser

Posts: 71
Bayonne, NJ		Thanks brothers!
I was getting allot of popping shifting at 3500 rpm. now if i shift at 3000k in the city all is well. also on the hway at 4ooorpm its good. MOLTO BENE!
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baadawg
Posted 2013-01-12 10:29 PM (#129484 - in reply to #129423)
Subject: Re: atom bombs popping


Tourer

Posts: 499
Chattanooga, TN		You could add an aic valve to help with the popping. Don't know about those rpms though. It will also improve low speed surging. If you add your bike mods to your signature we will know better how to assist you.
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norcan
Posted 2013-01-13 9:40 AM (#129495 - in reply to #129423)
Subject: Re: atom bombs popping


Cruiser

Posts: 208
Edmonton Alberta, Canada		I only have the SL2 on my 08, I had pooping too and by dumb luck found that a different brand of fuel seen a big reduction in popping. Was hung up that Shell was the best, but one year they added nitrogen to our fuel north of the 49th. One day it was popping badly and I needed fuel with no Shell station for miles I filled up at Petro Canada station, while being very low. By the time I got back on the street the all popping was gone! I now never use Shell.
Just a thought and possibly a cheap and quick cure. Good luck!
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soprano13
Posted 2013-01-14 6:58 PM (#129553 - in reply to #129423)
Subject: Re: atom bombs popping


Cruiser

Posts: 71
Bayonne, NJ		wow thats interesting i only use shell also. making the change next tank thanks bro!!
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gwedgewo
Posted 2013-01-21 8:32 AM (#129859 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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gwedgewo
Posted 2013-01-21 8:33 AM (#129860 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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gwedgewo
Posted 2013-01-21 8:33 AM (#129862 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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gwedgewo
Posted 2013-01-21 8:33 AM (#129863 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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gwedgewo
Posted 2013-01-21 8:33 AM (#129864 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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gwedgewo
Posted 2013-01-21 8:33 AM (#129865 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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gwedgewo
Posted 2013-01-21 8:33 AM (#129866 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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gwedgewo
Posted 2013-01-21 8:34 AM (#129867 - in reply to #129423)
Subject: Re: atom bombs popping


Newnan, Ga		I added the AIC valve to help stop the popping...it don't help!!
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rwilly
Posted 2013-01-21 9:02 AM (#129869 - in reply to #129423)
Subject: Re: atom bombs popping


Tourer

Posts: 523
seattle, wa		Ya, what they said.

I doesn't help.
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sonicbluerider
Posted 2013-01-21 9:57 AM (#129877 - in reply to #129423)
Subject: Re: atom bombs popping


Tourer

Posts: 576
, IA		Yep it did not help
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pete a
Posted 2013-01-21 8:44 PM (#129892 - in reply to #129423)
Subject: Re: atom bombs popping


Cruiser

Posts: 142
elgin mn		exaustgaskets may be the key!
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donetracey
Posted 2013-01-21 9:03 PM (#129893 - in reply to #129423)
Subject: Re: atom bombs popping


Visionary

Posts: 2118
Pitt Meadows, BC Canada		It is 'how you drive' - when I'm lazy - I get pops. Drive a little more aggressively - NO pops.
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viclvr
Posted 2013-01-22 10:46 AM (#129901 - in reply to #129423)
Subject: Re: atom bombs popping


Cruiser

Posts: 92
Princeton, MN		S1L2 with atom bombs , lloyds top intake, perf front filter,, VFC III,, Check for exhaust leaks front to back ,, I also add lucas octane booster each tank to compensate for poor quality fuel,, it helps lots! Amost completely gone.
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Bones
Posted 2013-01-24 12:01 AM (#129986 - in reply to #129423)
Subject: Re: atom bombs popping


Puddle Jumper

Posts: 43
Rossville, IL		Only 2 ways to stop it. 1) Someone develop a reflash for the ECM to get rid of the emission tuning (probably not happening) or 2) put the stock mufflers back on and at least muffle the popping so you can't hear it.
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JS5Owner
Posted 2013-01-25 12:41 PM (#130051 - in reply to #129901)
Subject: Re: atom bombs popping


Cruiser

Posts: 231
Desert Hot Springs (Palm Springs area), CA

viclvr - 2013-01-22 10:46 AM S1L2 with atom bombs , lloyds top intake, perf front filter,, VFC III,, Check for exhaust leaks front to back ,, I also add lucas octane booster each tank to compensate for poor quality fuel,, it helps lots! Amost completely gone.

What settings do you have your VFC-III at?  In my signature I have my current ones and if I don't pay attention to how I shift I have occasional pops.  When I shift over 3k zero pops.  I'm still tweeking my VFC settings so I'd like to know yours for testing and reference. 

BTW, others please share your VFC settings and your setup.

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