Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
Sponsored by:
Sponsored by:

front fork leaking

Thread Tools
 
Search this Thread
 
Old Mar 25, 2012 | 03:57 PM
  #1  
jbrady5979's Avatar
jbrady5979
Thread Starter
|
5th Gear
Joined: Aug 2011
Posts: 9
Likes: 0
From: Boston ma
Default front fork leaking

Hey looking for some help,just went out to the garage to fire up the bike now that the weather is getting better.Noticed a pretty giant puddle under the left( if your sitting on the the bike) side fork up front. cant seam to figure out where its coming from, there's no drip marks, and no run trails down the tube. Its red fluid, the forks were changed to chrome before i owned the bike. any help would be great
 
Reply
Old Mar 25, 2012 | 04:42 PM
  #2  
cHarley's Avatar
cHarley
Club Member
Joined: Feb 2007
Posts: 16,320
Likes: 306
From: Boynton Beach, FloriDuh
Default

Fork seals don't usually dump oil in a puddle like that, they just seep a little bit around the top of the slider (lower leg) and then, only when riding it. Are you sure it's not your front brake cylinder leaking? Check the fluid level in the master cylinder.
 
Reply
Old Mar 25, 2012 | 06:08 PM
  #3  
Taddeoeg's Avatar
Taddeoeg
Road Warrior
Joined: Nov 2008
Posts: 1,260
Likes: 5
From: Batesville Ga
Default

Not sure about 90s models but later bikes have a drain screw right near the bottom of the lower slider. It's a philips head screw on the back side, about an inch from the bottom. Could drip straight onto the floor leaving very little of a trail.
 
Reply
Old Mar 25, 2012 | 08:16 PM
  #4  
rickss69's Avatar
rickss69
Stellar HDF Member
Veteran: Marine Corps
Joined: Jun 2011
Posts: 2,158
Likes: 35
From: Gulf Breeze, FL
Default

There is a copper crush washer under the drain screw...previous owner no doubt used ATF for fork fluid as I did for this one.

Name:  forkdrain001.jpg
Views: 1704
Size:  2.15 MB
 
Reply
Old Mar 25, 2012 | 08:31 PM
  #5  
buggy's Avatar
buggy
Road Captain
Joined: Nov 2007
Posts: 644
Likes: 5
From: Pittsburgh
Default

Pull the wheel and check the allen screws up in the tubes that hold the damper and the legs together.
 
Reply
Old Mar 25, 2012 | 09:12 PM
  #6  
RANGER73's Avatar
RANGER73
Club Member
Veteran: Army
Joined: Sep 2010
Posts: 15,420
Likes: 7,118
From: Beyond Fucital
Default

Originally Posted by Taddeoeg
Not sure about 90s models but later bikes have a drain screw right near the bottom of the lower slider. It's a philips head screw on the back side, about an inch from the bottom. Could drip straight onto the floor leaving very little of a trail.


+1 on the drain screw
 
Reply
Old Mar 25, 2012 | 10:56 PM
  #7  
Scuba10jdl's Avatar
Scuba10jdl
Stellar HDF Member
Joined: Aug 2009
Posts: 3,212
Likes: 212
Default

Originally Posted by RANGER73
+1 on the drain screw
Make that a +2
 
Reply
Old Mar 25, 2012 | 11:51 PM
  #8  
mreed's Avatar
mreed
Outstanding HDF Member
Joined: Mar 2009
Posts: 3,261
Likes: 9
From: Indiana
Default

Originally Posted by buggy
Pull the wheel and check the allen screws up in the tubes that hold the damper and the legs together.
+1 on this as well as the drain screw.

Hopefully your drain screw hole isn't stripped. One of the many bad things about chrome parts is that most of the threads need to be chased before installation and not many ppl do.
 
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 Mar 26, 2012 | 12:05 AM
  #9  
rickss69's Avatar
rickss69
Stellar HDF Member
Veteran: Marine Corps
Joined: Jun 2011
Posts: 2,158
Likes: 35
From: Gulf Breeze, FL
Default

Originally Posted by buggy
Pull the wheel and check the allen screws up in the tubes that hold the damper and the legs together.
Now that you mention that it makes more sense seeing as he can't locate any tracks on the leg. (There is a copper washer under those capscrews as well)
 
Reply
Old Mar 29, 2012 | 09:02 PM
  #10  
jbrady5979's Avatar
jbrady5979
Thread Starter
|
5th Gear
Joined: Aug 2011
Posts: 9
Likes: 0
From: Boston ma
Default

HAhah! thank you guys for the help went and checked the drain screw and the screw was loose and there was no crush nut and as soon as i touched it it was a steady drip which leads me to believe its stripped to a point because it has movement while "threaded in". thank you guys, ill probably check and go over everything anyways just to be safe. One more thing, is there a specific way to add fluid to the tubes? I'm hearing different ways and opinions from different people.
 
Reply



All times are GMT -5. The time now is 09:44 AM.

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