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:

spark plug ?

Thread Tools
 
Search this Thread
 
Old Aug 31, 2013 | 11:10 AM
  #1  
psychocircus's Avatar
psychocircus
Thread Starter
|
Road Master
Joined: Sep 2009
Posts: 761
Likes: 9
From: lewisville, nc
Default spark plug ?

In the manual it states plug gap from 0.038-0.043...
Should both plugs be same gap or would one be better higher/lower than the other?
 
Reply
Old Aug 31, 2013 | 11:24 AM
  #2  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,476
Likes: 3,950
From: Vermont
Default

Gap both at .040
 
Reply
Old Aug 31, 2013 | 11:32 AM
  #3  
psychocircus's Avatar
psychocircus
Thread Starter
|
Road Master
Joined: Sep 2009
Posts: 761
Likes: 9
From: lewisville, nc
Default

What you feel about using the stock ones or using the screaming eagle ones on a stock 09 ultra?
 
Reply
Old Aug 31, 2013 | 11:35 AM
  #4  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,476
Likes: 3,950
From: Vermont
Default

Stock 6R12's are fine.
 
Reply
Old Aug 31, 2013 | 11:41 AM
  #5  
ynots's Avatar
ynots
Ultimate HDF Member
Joined: Apr 2010
Posts: 7,138
Likes: 26
From: Southern Oregon
Default

I always gap mine in the middle of the range .038 - .043 = .040 Gap both them the same. I've noticed no difference running SE plugs, I wouldnt spend any extra on them
 
Reply
Old Aug 31, 2013 | 11:44 AM
  #6  
chainsaw123's Avatar
chainsaw123
Tourer
Joined: Oct 2011
Posts: 339
Likes: 0
From: canton ga
Default

Marketing 101, make them think its something more than it is and charge more for it. It costs more so it must be better, right?
 
Reply
Old Aug 31, 2013 | 11:46 AM
  #7  
ynots's Avatar
ynots
Ultimate HDF Member
Joined: Apr 2010
Posts: 7,138
Likes: 26
From: Southern Oregon
Default

Originally Posted by chainsaw123
Marketing 101, make them think its something more than it is and charge more for it. It costs more so it must be better, right?
That only applies to hookers
 
Reply
Old Aug 31, 2013 | 12:58 PM
  #8  
psychocircus's Avatar
psychocircus
Thread Starter
|
Road Master
Joined: Sep 2009
Posts: 761
Likes: 9
From: lewisville, nc
Default

Kewl, thanks guys. Back to adjusting clutch pak and fresh fluid...think she was just barley dragging enough to burn up the fluid, insane foul odor...
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

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

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Aug 31, 2013 | 02:17 PM
  #9  
frito1's Avatar
frito1
Advanced
Joined: Oct 2008
Posts: 50
Likes: 2
From: The arm pit of Arkansas
Default

I always figured that sparkplugs are one of the few things, HD branded, that are a good value. SE plugs are just snake oil for the MoCo to peddle.
 
Reply
Old Aug 31, 2013 | 02:29 PM
  #10  
dulley's Avatar
dulley
Tourer
Joined: Apr 2010
Posts: 413
Likes: 1
From: canfield,ohio
Default

oh ok
 
Reply



All times are GMT -5. The time now is 01:09 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE