Harley Davidson Forums

Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

Smoking

Thread Tools
 
Search this Thread
 
Old Apr 10, 2017 | 01:19 PM
Share
  #21  
djl's Avatar
djl
HDF Community Team
Veteran: Army
15 Year Member
Photogenic
Liked
Joined: Jun 2006
Posts: 12,774
Likes: 2,606
From: san antonio
Community Team
Default
Which Fuel Pak? FP3 or earlier? Changing pipes will not generate that kind of smoke, even with some anti-sieze exposed on the sensor threads. Something is off with the FP settings; time to start over. Pull the plugs and post a picture.
 
Reply
0
Old Apr 10, 2017 | 02:03 PM
Share
  #22  
Dave0's Avatar
Dave0
Thread Starter
|
Novice
Joined: Apr 2017
Posts: 21
Likes: 0
From: Louisville
Default

Left is front cylinder right is rear.
 
Reply
0
Old Apr 10, 2017 | 03:05 PM
Share
  #23  
Mike Lawless's Avatar
Mike Lawless
Outstanding HDF Member
Joined: Jan 2014
Posts: 2,181
Likes: 488
From: Central California
Default
I'd do a compression check. Something pumping oil into that rear cylinder. Start ruling out what the problem is NOT. Easier to narrow down what it IS
 
Reply
0
Old Apr 10, 2017 | 06:25 PM
Share
  #24  
kink04fxd's Avatar
kink04fxd
Tourer
15 Year Member
Liked
Loved
Top Answer: 1
Joined: Mar 2010
Posts: 425
Likes: 261
From: Mid-Mo.
Default
For starters I'd change my plugs more often. That front looks like the original with all that rust.
 
Reply
0
Old Apr 10, 2017 | 07:08 PM
Share
  #25  
Dave0's Avatar
Dave0
Thread Starter
|
Novice
Joined: Apr 2017
Posts: 21
Likes: 0
From: Louisville
Default
Sry, the bike is just 1 year old, didn't think I needed to change them what every 6 months ?
 
Reply
0
Old Apr 10, 2017 | 07:30 PM
Share
  #26  
Fat11Lo's Avatar
Fat11Lo
Stellar HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2012
Posts: 2,017
Likes: 599
From: Columbus, OH
Default
Originally Posted by Dave0
O2's appear to be good, I did watch the Fuel pak sensors on both O2's and they looked to be right there together. Can't get in at Harley for another 2 weeks and he looked at it outside and said he could smell where it was running hot or rich.
Did you run the Feulpack before the pipe change or were both installed at the same time? IDK with the FP but is there a way to restore the original tune?
 
Reply
0
Old Apr 10, 2017 | 07:31 PM
Share
  #27  
kink04fxd's Avatar
kink04fxd
Tourer
15 Year Member
Liked
Loved
Top Answer: 1
Joined: Mar 2010
Posts: 425
Likes: 261
From: Mid-Mo.
Default
Originally Posted by Dave0
Sry, the bike is just 1 year old, didn't think I needed to change them what every 6 months ?
My bad. But they shouldn't look that bad for a one year old bike. Good luck.
 
Reply
0
Old Apr 10, 2017 | 07:40 PM
Share
  #28  
Dave0's Avatar
Dave0
Thread Starter
|
Novice
Joined: Apr 2017
Posts: 21
Likes: 0
From: Louisville
Default
Originally Posted by Fat11Lo
Did you run the Feulpack before the pipe change or were both installed at the same time? IDK with the FP but is there a way to restore the original tune?
No I did the FP and headers at same time. Since then I've put stock manifold back on along with stock setup and removed FP.
I know plugs look like crap and not planning on keep same plugs.
 
Reply
0
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 Apr 10, 2017 | 09:03 PM
Share
  #29  
FlaHeatWave's Avatar
FlaHeatWave
Road Captain
Joined: Jan 2014
Posts: 566
Likes: 70
From: The Redneck Riviera
Default
Originally Posted by Dave0
No I did the FP and headers at same time. Since then I've put stock manifold back on along with stock setup and removed FP.
I know plugs look like crap and not planning on keep same plugs.
Front plug is lean with signs of detonation, rear is oil fouled...
Predicting the top end will be coming apart soon...
 
Reply
0
Old Apr 11, 2017 | 11:18 AM
Share
  #30  
Fat11Lo's Avatar
Fat11Lo
Stellar HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2012
Posts: 2,017
Likes: 599
From: Columbus, OH
Default
Originally Posted by Dave0
No I did the FP and headers at same time. Since then I've put stock manifold back on along with stock setup and removed FP.
I know plugs look like crap and not planning on keep same plugs.
Originally Posted by FlaHeatWave
Front plug is lean with signs of detonation, rear is oil fouled...
Predicting the top end will be coming apart soon...
Pipes, Tuner and service all at the same time, if I understand the first post

Did problem start immediately after first start up?

Have you checked the oil for signs of fuel dilution? Has the oil level gone up since the change?

Is it possible the new tune caused the rear injector to over fuel and wash out the rear cylinder? Washed out cylinder allowing fuel to go past rings and enter crankcase, raised oil level causes breather to puke more than normal. Cycle keeps repeating on and on.

It's only a 2016, how many miles on it? How many did you put on it after it started smoking? I agree the top end, at least the rear, may have to be pulled apart but the root cause needs to be addressed.
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 03:42 AM.

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