How much "pop" is normal/acceptable
Outstanding HDF Member
Joined: Apr 2010
Posts: 2,477
Likes: 14
From: Western MD
the best way i know to check for exh leaks is one of two ways..
1, look for black soot marks at the joints and welds. This may not work for you since it has so few miles.
2, use a small mirror and go around the joints and welds as close as possible and see if the mirror steams up. if it steams it leaks..
Outstanding HDF Member
Joined: Apr 2010
Posts: 2,477
Likes: 14
From: Western MD
I've installed a Frog AC and Frog 2-1 exhaust and i have zero popping on decel.. only the original gurgle on the decel coast down. I did have her pop on me the other day after running it for a very short time to let a co-worker hear the new exhaust. when i fired it back up to roll out, she popp'ed pretty good, i chalked it up to a loaded up/rich exhaust. That is how i always understood backfire/pop to be.. excess fuel in the exhaust lighting off.. could be wrong though.
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
Decel popping is destroying your bike every time you let off the throttle.
Decel popping is normal, baffels in the pipes can quiet it down though.
Decel popping can be tuned out but it sets your A/F ratio too high.
Decel popping can be tuned out but it sets your A/F ratio too low.
After reading all the threads about decel popping on this forum I'm half blind and in every thread you get a lot of different opinions. I have not figured it out but my bike runs great and I hear a little.
Decel popping is normal, baffels in the pipes can quiet it down though.
Decel popping can be tuned out but it sets your A/F ratio too high.
Decel popping can be tuned out but it sets your A/F ratio too low.
After reading all the threads about decel popping on this forum I'm half blind and in every thread you get a lot of different opinions. I have not figured it out but my bike runs great and I hear a little.
Road Warrior
Joined: Jan 2007
Posts: 1,820
Likes: 23
From: SW PA
ok so I get no decel pop at all,my bike runs great,when it's cold or every once in a great while I get a little backfire/pop upon acceleration in 1st,but if I twist the throttle a touch more it is gone,and if the bike is really warmed up I have none. Should I worry? The bike runs great and gets good fuel mileage?
I have a carb, Slip-On Cycle Shacks/Dragtron II & K&N filter/Jetted,forgot size but have it marked down somewhere.....
I have a carb, Slip-On Cycle Shacks/Dragtron II & K&N filter/Jetted,forgot size but have it marked down somewhere.....
Last edited by twisty571; Apr 10, 2011 at 07:54 PM.
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Road Master
Joined: Aug 2010
Posts: 859
Likes: 43
From: Upstate NY
Just ran my bike this past weekend with stage 1 complete. New mufflers sound great! I do feel a bit more power and I do get some gurgling on decel and maybe a little popping. Overall it sounds good. Asked dealer about the popping before install and they said it is normal and expected.
Road Master
Joined: Jun 2007
Posts: 861
Likes: 1
From: NW Louisiana
My '04 Deuce pops, gurgles, cracks all the time on decel. Been doing it since the baffles were taken out of the V&H short shots years ago (no stage 1). Just turned over 45,000 miles and all is well with the Deuce. Battery, tires, fluids and a clutch cable replaced. The Deuce is one fine Harley Davidson. Dealer suggested a stage 1 but I told him no because it is normal for a Harley to do that. lol