Harley Davidson Forums

Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Need tech advice..

Thread Tools
 
Search this Thread
 
Old Mar 22, 2014 | 07:34 PM
Share
  #1  
mdanehart's Avatar
mdanehart
Thread Starter
|
Road Captain
Joined: Mar 2010
Posts: 632
Likes: 11
From: Wheeling, WV
Default Need tech advice..
My 07SG with a 113/ Thundermax/ S&S cams, heads and many other modifications is running somewhat erratic under heavy throttle, spitting or miss issue, I did a dianogistic code check and found nothing.

I am not sure if is fuel related or spark?

Any advice from the experts where to start?

Thanks!
 
Reply
0
Old Mar 22, 2014 | 08:17 PM
Share
  #2  
mdanehart's Avatar
mdanehart
Thread Starter
|
Road Captain
Joined: Mar 2010
Posts: 632
Likes: 11
From: Wheeling, WV
Default
For got to mention that the plugs have been swapped out for a new set.
 
Reply
0
Old Mar 22, 2014 | 10:15 PM
Share
  #3  
Cruisineasy1's Avatar
Cruisineasy1
Advanced
Joined: Nov 2013
Posts: 88
Likes: 1
From: California
Default
I'd check to be sure the cam timing is correct. May be off a tooth or two..
 
Reply
0
Old Mar 22, 2014 | 10:21 PM
Share
  #4  
stro1965's Avatar
stro1965
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2007
Posts: 10,602
Likes: 721
From: Bellevue, NE
Default
Was it running well before? Is this a new issue and, if so, what changed?
 
Reply
0
Old Mar 22, 2014 | 10:41 PM
Share
  #5  
wurk_truk's Avatar
wurk_truk
Outstanding HDF Member
Joined: May 2008
Posts: 2,543
Likes: 19
From: Ashland Ohio
Default
Have fuel pressure checked.
 
Reply
0
Old Mar 22, 2014 | 11:00 PM
Share
  #6  
Cruisineasy1's Avatar
Cruisineasy1
Advanced
Joined: Nov 2013
Posts: 88
Likes: 1
From: California
Default
Good point. May be clogged fuel filter.
 
Reply
0
Old Mar 22, 2014 | 11:11 PM
Share
  #7  
hover's Avatar
hover
Road Captain
Joined: Aug 2008
Posts: 528
Likes: 4
From: Alberta Canada
Default
Check to make sure the spark plug wires are installed correctly if you just changed them.
 
Reply
0

Trending Topics

Old Mar 23, 2014 | 05:06 AM
Share
  #8  
mdanehart's Avatar
mdanehart
Thread Starter
|
Road Captain
Joined: Mar 2010
Posts: 632
Likes: 11
From: Wheeling, WV
Default
The bike ran excellent until the last tank of fuel that took forever to pump, I assume that it was the bottom of the Sunoco tanks and it was cold and just wanted to get home! I will first explore the fuel filter. Thanks.
 
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 Mar 23, 2014 | 05:09 AM
Share
  #9  
srt8's Avatar
srt8
Road Captain
Joined: Jun 2013
Posts: 669
Likes: 4
From: Rockwall,TX
Default
Originally Posted by mdanehart
The bike ran excellent until the last tank of fuel that took forever to pump, I assume that it was the bottom of the Sunoco tanks and it was cold and just wanted to get home! I will first explore the fuel filter. Thanks.
oh crap you just diagnosed your problem right there

Drain that crap out of the tank clean your tank out replace your filter and get some good gas you should be good to go after that
 
Reply
0
Old Mar 23, 2014 | 07:49 AM
Share
  #10  
mdanehart's Avatar
mdanehart
Thread Starter
|
Road Captain
Joined: Mar 2010
Posts: 632
Likes: 11
From: Wheeling, WV
Default
Just read over the service manual and watched a YouTube on fuel filter replacement, another interesting adventure.
 
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
77 fxe won't start
munkster
Engine Mechanical Topics
4
May 17, 2019 06:59 PM
No Start after Flywheel-Crank Install
pdog75
General Topics/Tech Tips
8
Nov 6, 2017 09:36 PM
Bike started but now won't start after Cam install
tonebone_79
Engine Mechanical Topics
8
Jun 7, 2015 08:22 PM
HELP - Fuel Moto 107 install
mr1gebby
Softail Models
26
May 18, 2012 09:41 PM
Just put 95 incher together, won't start
sporty79
Ignition/Tuner/ECM/Fuel Injection
13
Aug 17, 2007 12:15 AM
Back to Subforum
Touring Models
View Next Unread
4.5 pro touring slipon fitment to shields




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 09:15 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