Mild decel popping... is it normal?
Thread Starter
|
Advanced
Joined: Jun 2009
Posts: 53
Likes: 0
Mild decel popping... is it normal?
Just installed SE SP slip ons on my '08/09 FXD. I like the sound quality (it could have more volume) and I like the slighty performance boost. Other than that, my bike is stock. Now, it has a little popping on decel (I suspect it was there before, only I couldn't hear because of the very closed sounding stock exhaust). It's very mild. Is it normal?
I ask 'cause I had a 883R with Cycle Shacks before, very loud sounding, and never had one single pop whatsoever!
Is it because of the TC96 engine? Thanks!
I ask 'cause I had a 883R with Cycle Shacks before, very loud sounding, and never had one single pop whatsoever!
Is it because of the TC96 engine? Thanks!
Road Warrior
Joined: Apr 2009
Posts: 1,360
Likes: 4
Normal in the sense that just about everyone that installs slip ons without a tuner will notice decel pops. You notice them now because the open exhaust allows air to rush up the pipe and light off unburned fuel. It will not hurt anything, annoys most riders but some riders get a bang outa it.
Road Captain
Joined: Apr 2009
Posts: 584
Likes: 0
Just installed SE SP slip ons on my '08/09 FXD. I like the sound quality (it could have more volume) and I like the slighty performance boost. Other than that, my bike is stock. Now, it has a little popping on decel (I suspect it was there before, only I couldn't hear because of the very closed sounding stock exhaust). It's very mild. Is it normal?
I ask 'cause I had a 883R with Cycle Shacks before, very loud sounding, and never had one single pop whatsoever!
Is it because of the TC96 engine? Thanks!
I ask 'cause I had a 883R with Cycle Shacks before, very loud sounding, and never had one single pop whatsoever!
Is it because of the TC96 engine? Thanks!
and a A Ness Big sucker
problem solved
Road Warrior
Joined: Apr 2009
Posts: 1,360
Likes: 4
There are plenty of reports that this (PC) won't always work, sometimes it makes it worse and sometimes you get lucky. You need something like a TTS to have all the tools you need to eliminate pop by tweaking timing and AF for certain TPS and MAP values specific for the bike.
Last edited by ColdCase; Nov 18, 2009 at 06:37 AM.
Outstanding HDF Member
Joined: Jun 2007
Posts: 2,687
Likes: 6
From: Kalaui Kona HI
Decel pop can be tuned out. I didn't believe it till my tuner did it. I run BSS which are known pop.
Trending Topics
Seasoned HDF Member
Joined: Jul 2008
Posts: 9,282
Likes: 1,139
From: southeast PA
IMO, if it's popping it's not tuned right, I don't care what the dealers say. My decel pop was driving me crazy. To make a really long story short, I tried the FuelPak and XIEDs, (making sure there were no intake or exhaust leaks) and nothing helped until I installed the TMax. Finally got it tuned outand getting better mileage as well.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Thread Starter
|
Advanced
Joined: Jun 2009
Posts: 53
Likes: 0
Well, I guess pops can sometimes be tuned out but, I don't know if it's got anything to do with it, on a finely tuned formula one engine the exhaust pops a lot:
http://www.youtube.com/watch?v=0I98lQKeaEs
http://www.youtube.com/watch?v=0I98lQKeaEs
Intermediate
Joined: Nov 2009
Posts: 41
Likes: 0
From: South Fla
After i installed my Rush slip-ons i noticed decel pop big time. I went with the PCV and SE AC and that helped alot but didnt cure it 100%. She is running alot better now, and cooler, but i did notice i have to crack the throttle abit more from a stop standing position. Its just a canned tune but better than before. Maybe one day ill get it dyno tuned.