Softail Models Standard, Custom, Night Train, Deuce, Springer, Heritage, Fatboy, Deluxe, Rocker and Cross Bones.
Sponsored by:
Sponsored by:

Checking Oil and..

Thread Tools
 
Search this Thread
 
Old Jun 13, 2011 | 07:49 PM
  #1  
MJ-13000's Avatar
MJ-13000
Thread Starter
|
Tourer
Joined: Aug 2010
Posts: 458
Likes: 0
From: NC
Default Checking Oil and..

..found these spots at the throat of the tube.

Newbie just being a newbie...apologies!

Cam phone-sorry for the poor quality.

What am I looking at? Should I be concerned? What will remove them..other than scraping upwards with my finger?





 
Reply
Old Jun 13, 2011 | 08:40 PM
  #2  
cpiad's Avatar
cpiad
Account Closed
Joined: Oct 2009
Posts: 682
Likes: 1
From: In the World
Default

How old is the machine? Miles? Geography? Consistency?

These A/C engines get damn hot....230 plus oil temp normal on newer bikes. Oil does cook and sludge does form. Syn oil (not HD/SUNOCO) is supremely better ...less sludge .... much higher cooking temps. I've seen syn oil reduce sludge in auto engines.
 
Reply
Old Jun 13, 2011 | 09:01 PM
  #3  
MJ-13000's Avatar
MJ-13000
Thread Starter
|
Tourer
Joined: Aug 2010
Posts: 458
Likes: 0
From: NC
Default

Originally Posted by cpiad
How old is the machine? Miles? Geography? Consistency?

These A/C engines get damn hot....230 plus oil temp normal on newer bikes. Oil does cook and sludge does form. Syn oil (not HD/SUNOCO) is supremely better ...less sludge .... much higher cooking temps. I've seen syn oil reduce sludge in auto engines.

2011 Fat Boy Lo-Serviced at 1000 miles on 05/06...amsoil in all three holes!

Current mileage is just over 2300-Highway miles-not too much city stop/go. Commute is just over 100 miles round trip 2-3 times a week plus weekend rides
Oil color is light yellowish/brownish on the stick when cold, and darker in color after it comes up to temp. like tonight when I got home and checked it 15 minutes after pulling into garage

Another oil change?

Thanks for your response-just concerned here-want to learn everything I can to take care of this bike.
 
Reply
Old Jun 14, 2011 | 12:24 AM
  #4  
cpiad's Avatar
cpiad
Account Closed
Joined: Oct 2009
Posts: 682
Likes: 1
From: In the World
Default

Originally Posted by MJ-13000
2011 Fat Boy Lo-Serviced at 1000 miles on 05/06...amsoil in all three holes!

Current mileage is just over 2300-Highway miles-not too much city stop/go. Commute is just over 100 miles round trip 2-3 times a week plus weekend rides
Oil color is light yellowish/brownish on the stick when cold, and darker in color after it comes up to temp. like tonight when I got home and checked it 15 minutes after pulling into garage

Another oil change?

Thanks for your response-just concerned here-want to learn everything I can to take care of this bike.
Mmmmmm....Amsoil very good stuff ... as good as it gets. Maybe its cooking off some sort of coating. I have a 10 FLSTFB ..11000 + Miles ... I use Redline in the engine
 
Reply
Old Jun 14, 2011 | 12:31 AM
  #5  
cpiad's Avatar
cpiad
Account Closed
Joined: Oct 2009
Posts: 682
Likes: 1
From: In the World
Default

Originally Posted by cpiad
Mmmmmm....Amsoil very good stuff ... as good as it gets. Maybe its cooking off some sort of coating. I have a 10 FLSTFB ..11000 + Miles ... I use Redline in the engine
Sorry ... goofed up... I don't see any goop or stain... or cook off. Hmmm.... I did have a Mercedes in the late 90s....and I used syn oil...the overhead cams would froth up the crap out of the oil...and it got hot near the filler neck...and it would cook something the consistency of thick mayo.

I never take a bike back to a dealership.... I just don't trust their work....but maybe ... if you have one of the good dealers ... they can shed some light in your issue. Your engine just doesn't have the miles ... and you are using an oil with very high relative cook off temp. In a word ... I'm stumped.
 
Reply
Old Jun 14, 2011 | 06:33 AM
  #6  
fdb2007's Avatar
fdb2007
Road Master
Joined: Feb 2010
Posts: 884
Likes: 0
From: n
Default

Just went out and looked at mine. There was a small amount brownish residue around the neck, no evidence of foaming, nothing I consider disturbing. The oil was dark, but consistent with anything I have ever seen on any of my HDs. The oil is Syn 3 and has about 2500 miles on it. Definitely different than yours. I would have speculated on moisture, but it sounds like you ride it far enough to cook it off, unlike short little commutes. I live in the NC Sandhills and it has definitely been humid. Maybe change it again, wipe the crude out and give it hard weekend and see what it looks like. Change it yourself, though. Instructions are in your owner's manual. You may need an oil filter wrench if you don't have one. A strap one or the one with the cut out for the sensor.
 
Reply
Old Jun 14, 2011 | 11:02 PM
  #7  
oct1949's Avatar
oct1949
Club Member
15 Year Member
Liked
Loved
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
Default

maybe the stopper has wore through the chrome into the copper plating.
 
Reply
Old Jun 14, 2011 | 11:37 PM
  #8  
cpiad's Avatar
cpiad
Account Closed
Joined: Oct 2009
Posts: 682
Likes: 1
From: In the World
Default

Originally Posted by oct1949
maybe the stopper has wore through the chrome into the copper plating.
Yep...looks like that in his picks.

PS: Use K&N oil filter and you have better filtration...and simple socket and ratchet will take it off.
 
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 Jun 15, 2011 | 12:15 AM
  #9  
BLKBAGGER's Avatar
BLKBAGGER
Outstanding HDF Member
Joined: Oct 2007
Posts: 3,450
Likes: 4
From: El Cajon Ca.
Default

I can't really tell from the pic but it looks like it might be something left over from the coating process. Is the oil filler chromed? If it is copper is one of the base metals used when it goes through the process.
 
Reply
Old Jun 15, 2011 | 12:38 PM
  #10  
reddog8145's Avatar
reddog8145
Road Captain
Joined: May 2009
Posts: 640
Likes: 44
From: Mancheser UK
Default

It looks to me like the base metal from plating. I know the low has a black tank but I've heard that if you take the paint off in some cases they have been chromed underneath. Your picture looks like the nickel or copper base used for chroming. I can't see clearly from your pictures but it could because by the rubber on the stopper rubbing.
 
Reply



All times are GMT -5. The time now is 03:09 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