Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

Spark plug deposits

Thread Tools
 
Search this Thread
 
Old Mar 27, 2011 | 07:40 PM
  #1  
Romark's Avatar
Romark
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 848
Likes: 0
From: Lake Jackson, TX
Default Spark plug deposits

On a whim yesterday I pulled my spark plugs on my '07 DWG with 9000 miles on it. I have Reinhart 2-2 pipes and a S&S teardrop and the dealership download. The bike runs good.

TH
here is a white crusty deposit on the grounding strap and the ceramic is white.

When I bought some new ones the parts counter guy said it could be lean or burning a little oil.

What does that sound like to you?
 
Reply
Old Mar 27, 2011 | 08:07 PM
  #2  
Book-it's Avatar
Book-it
Cruiser
Joined: May 2010
Posts: 105
Likes: 2
From: Missouri
Default

It's lean.... should be a light brown
 
Reply
Old Mar 28, 2011 | 08:22 AM
  #3  
Romark's Avatar
Romark
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 848
Likes: 0
From: Lake Jackson, TX
Default

Isn't that the whole point of o2 sensors to help the computer adjust the A/F mixture?
 
Reply
Old Mar 28, 2011 | 11:53 AM
  #4  
Book-it's Avatar
Book-it
Cruiser
Joined: May 2010
Posts: 105
Likes: 2
From: Missouri
Default

well everybody says the dealer down load is a joke.
it will still be lean.
if you want to post the same ? on the General Harley Davidson Chat page
more poeple will see it.
 
Reply
Old Mar 28, 2011 | 12:20 PM
  #5  
Romark's Avatar
Romark
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 848
Likes: 0
From: Lake Jackson, TX
Default

Done. Thanks
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Romark
General Harley Davidson Chat
4
Mar 29, 2011 06:19 AM
Romark
Ignition/Tuner/ECM/Fuel Injection
3
Mar 28, 2011 02:25 PM
PBR2
Softail Models
7
Apr 30, 2010 08:07 AM
Jessie
Dyna Glide Models
6
May 10, 2008 12:02 PM
mulch63
Ignition/Tuner/ECM/Fuel Injection
10
May 4, 2007 12:21 AM




All times are GMT -5. The time now is 06:48 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