Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
Sponsored by:
Sponsored by:

2011 xl1200n

Thread Tools
 
Search this Thread
 
Old Dec 30, 2010 | 06:36 PM
  #1  
xTRA WINGs's Avatar
xTRA WINGs
Thread Starter
|
6th Gear
Joined: Dec 2010
Posts: 10
Likes: 0
From: NC/CO/MI
Default 2011 xl1200n

Hey, I'm new to this site and have a question for those of you who hold the wisdom... I have a 2011 XL1200N with some basic mods: screamin eagle breather, stage I EFI, V&H shorts - just recently pulled the baffles and replaced with BCT Monsters. I have a ton of backfire when letting off of the throttle. This occurred before I switched baffles as well. It is almost beyond ridiculous. Anything I can do to fix this? Should I be concerned about it?
 
Reply
Old Dec 30, 2010 | 06:41 PM
  #2  
TennesseeMustangPerf's Avatar
TennesseeMustangPerf
Elite HDF Member
Joined: Jul 2010
Posts: 4,828
Likes: 8
Default

Sounds like you are leaning on the bike. Do you have a FuelPak? can you post a video on Youtube, might help diagnose.
 
Reply
Old Dec 30, 2010 | 06:51 PM
  #3  
HERE's Avatar
HERE
Road Warrior
Joined: Sep 2010
Posts: 1,785
Likes: 5
From: Louisiana
Default

Definately sounds like your tuning is wacked and your air/fuel ratio is way lean.
 
Reply
Old Dec 30, 2010 | 07:01 PM
  #4  
xTRA WINGs's Avatar
xTRA WINGs
Thread Starter
|
6th Gear
Joined: Dec 2010
Posts: 10
Likes: 0
From: NC/CO/MI
Default

Forgive me, I do not think that I have a FuelPak. I'm pretty sure its a DynoJet PC V. I will post a video. It is about two months old, before the new baffles and isnt that great, but hopefully it will suffice.
 
Reply
Old Dec 30, 2010 | 07:03 PM
  #5  
Malingerer's Avatar
Malingerer
Road Warrior
Joined: Jun 2010
Posts: 1,829
Likes: 0
From: OC,NY
Default

Although I do not consider myself to hold the wisdom here is my 02 cents.Yes you should be concerned and yes you can fix it.I would check for exhaust leaks first.This is a major cause of back firing on decel.Did you change the crush gaskets when you changed the exhaust?Even if this helps. You should really be running a decent fuel tuner especially with the heavy breather.A simple stage 1 download is not enough for your set up.Good Luck
 
Reply
Old Dec 30, 2010 | 07:17 PM
  #6  
xTRA WINGs's Avatar
xTRA WINGs
Thread Starter
|
6th Gear
Joined: Dec 2010
Posts: 10
Likes: 0
From: NC/CO/MI
Default

Ok, I have the video up.

http://www.youtube.com/watch?v=f15MiZYxHNI

All of the barking toward the end of the vid is from my bike, not the FatBoy. Sorry bout the vid, its all I have right now.
 
Reply
Old Dec 30, 2010 | 07:22 PM
  #7  
xTRA WINGs's Avatar
xTRA WINGs
Thread Starter
|
6th Gear
Joined: Dec 2010
Posts: 10
Likes: 0
From: NC/CO/MI
Default

Malingerer - the HD shop did all of the work, minus the exchange of the baffles. But like I said, the barking was there before they were switched out. I have been in for my 1000mi service and mentioned it to them and the service mgr said it was because of the short pipes.
 
Reply
Old Dec 30, 2010 | 07:28 PM
  #8  
Malingerer's Avatar
Malingerer
Road Warrior
Joined: Jun 2010
Posts: 1,829
Likes: 0
From: OC,NY
Default

You need to give us a little more info on exactly what you have .A stg1 download,Fuel Pak,PC V.Master Tune.How did the install on all your parts etc.Did you change crush gaskets when installing the short shots etc.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Dec 30, 2010 | 07:38 PM
  #9  
Malingerer's Avatar
Malingerer
Road Warrior
Joined: Jun 2010
Posts: 1,829
Likes: 0
From: OC,NY
Default

Originally Posted by xTRA WINGs
Malingerer - the HD shop did all of the work, minus the exchange of the baffles. But like I said, the barking was there before they were switched out. I have been in for my 1000mi service and mentioned it to them and the service mgr said it was because of the short pipes.
Ok knowing this I would only have to assume that they used new crush gaskets and installed the pipes,and parts correctly.If no exhaust leak I am going to go out on a limb and say they sold you a stage 1 down load and that is most likley your problem.It simply is not sufficent enough for the heavy breather and pipes.Can you check and see what fuel tuner etc you have.Seems like you are deff running lean.The service manager is full of ****, "because of the short pipes "freakin numbskull.
 
Reply
Old Dec 30, 2010 | 07:40 PM
  #10  
xTRA WINGs's Avatar
xTRA WINGs
Thread Starter
|
6th Gear
Joined: Dec 2010
Posts: 10
Likes: 0
From: NC/CO/MI
Default

Hmmm, you are asking about stuff that I am not very knowledgeable about. Let's see...

When I purchased the bike, before I picked it up, I had them install V&H ShortShots Staggered, ScreaminEagle Breather, and a "Stage I EFI Kit". That is what I know.

I am not familiar with a "stage 1 download", I am assuming it has to do with the DynoJet PCV. But they ensured that it was programmed properly.

I do not know what you are talking about with changing crush gaskets. This is my first bike and I am learning something new every day, so I appreciate your help.
 
Reply



All times are GMT -5. The time now is 03:40 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE