2018+ Softail Models Breakout

Gas cap leaks when tank full. Is this normal?

Thread Tools
 
Search this Thread
 
Old Sep 5, 2025 | 08:13 PM
  #1  
sincityharley's Avatar
sincityharley
Thread Starter
|
Intermediate
15 Year Member
Liked
Joined: Jan 2007
Posts: 40
Likes: 1
Default Gas cap leaks when tank full. Is this normal?

I’m on an 02 FLSTCI. I recently bought a kuryakyn gas cap. Today I went and filled the tank up. Soon as I started it up gas starts coming out through the gas cap. Just wondering if the gas cap should be allowing fuel to seep out or should I be expecting a tighter seal from them? Or could there be another issue I should be investigating?
 
Reply
Old Sep 5, 2025 | 08:26 PM
  #2  
CoolBreeze3646's Avatar
CoolBreeze3646
Seasoned HDF Member
Joined: Aug 2006
Posts: 24,540
Likes: 30,869
From: Pennsylvania
Default

Get an OEM gas cap & Gasket. Buy once, cry once but it won't leak.

Does the aftermarket cap have a gasket? You may need to purchase just the gasket. If that does not solve the issue go all OEM

Ref:28
61272-92F
CAP,FUEL,RH-THREAD,FILLER,CHROME
This part replaces 61272-92C.
Price: $47.91

Ref: 27
61100194
CAP,FUEL,GASKET
This part replaces 61109-85D.
Price: $20.27






 
Reply
Old Sep 5, 2025 | 08:30 PM
  #3  
GalvTexGuy's Avatar
GalvTexGuy
Seasoned HDF Member
Veteran: Navy
10 Year Member
Joined: Apr 2015
Posts: 10,070
Likes: 5,321
Default

These are the gas caps that Kuryakyn shows as compatible with your bike. Is it one of these?

https://kuryakyn.com/vented-flush-mount-gas-caps/


https://kuryakyn.com/kuryakyn-alley-...ap-black-7384/
 
Reply
Old Sep 5, 2025 | 08:54 PM
  #4  
HarleyHoo's Avatar
HarleyHoo
Cruiser
Photogenic
Liked
Loved
Community Favorite
Joined: Jan 2024
Posts: 157
Likes: 65
From: Virginia
Default

Make sure you get the one with the pre-built in rattle. My favorite thing about the OEM.
 
Reply
Old Sep 6, 2025 | 12:11 AM
  #5  
gonefortheborder's Avatar
gonefortheborder
Cruiser
Veteran: Navy
15 Year Member
Loved
Community Favorite
Joined: Oct 2006
Posts: 204
Likes: 114
From: Nevada
Default

If you installed the Vented Flush Mount Gas Cap did you use the gasket from your old cap?

Tanks later than '96 will need to reuse the stock gas cap gasket
 

Last edited by gonefortheborder; Sep 6, 2025 at 12:13 AM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dyna107375l
Dyna Glide Models
7
Sep 10, 2022 07:43 AM
Bigguy48
EVO
5
Sep 24, 2021 08:17 AM
richylam
2018+ Softail Models
0
Jul 24, 2019 09:35 PM
YorkPorch
Dyna Glide Models
3
May 31, 2010 09:41 PM
Marfaman
Dyna Glide Models
3
Nov 14, 2007 02:58 PM




All times are GMT -5. The time now is 02:56 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