Gas cap leak - Kawasaki Vulcan Forum : Vulcan Forums
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 04-25-2018, 08:07 AM Thread Starter
Junior Member
Fireman's Avatar
Join Date: Mar 2014
Location: Farmville, NC
Posts: 11
Gas cap leak

Hello fellas , sorry I don’t get back here much but I do own a Kawi and the just don’t break. I am having trouble with a leaking gas cap. The local shop could not find the seals o need to rebuild the cap. Has anyone else run into this problem. It leaks after a fill up.i replaced a few small o rings but they were not made for being in gas I guess because they went away quickly. Any help would be nice. Thanks
Fireman is offline  
Sponsored Links
post #2 of 2 (permalink) Old 04-25-2018, 08:23 AM
END OF YEAR BIKE 2018 Winner
Join Date: Apr 2017
Location: Nebraska (The Dark Side of the Moon)
Year/Make/Model: 2006 Classic LT (Buffy)
Displacement/CC's: 903
Color: Blue/Silver/Chrome
Gender: Male
Posts: 862
I had a cap leaking problem a couple of years ago. I assumed my problem was the seal on the cap.

After reading some old posts about the subject I discovered two things I was doing.

1. I was filling the tank to the top off level to get as much gas as I could in the tank. I was doing this during a ride. The bike was hot (operating at correct temp but warm)

2. I would insert the locking cap in and then turn and remove the key.

After reading the posts I realized I should not be filling the tank with cool gas into a warm bike right to the top as the cool gas will want to expand some when warming up (makes sense). Also I didn't realize that even though my cap turns freely after inserted and locked, it becomes tighter and more sealed if I turn it and pay attention to the friction when turning. It most definitely tightens better when I do this.

Bottom line; fixed my leak problem completely. I think my problem was not twisting the cap around to ensure a tight seal.

Good luck with yours.

...On a Steel Horse I ride...
To view links or images in signatures your post count must be 1 or greater. You currently have 0 posts.
glhadiator is offline  
Sponsored Links

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gas cap leak? OAS Vulcan 1500 4 07-21-2014 08:22 AM
Gas smell from gas cap jp58 Vulcan 1700 7 03-26-2012 10:34 PM
Gas cap leak XCR600 Vulcan 800 9 07-07-2011 05:44 AM
Gas Cap Whistle and Gas Smell rboyle21 Vulcan 2000 16 06-06-2011 08:53 PM
Gas cap noise on Vulcan 500 ggreene1 General Vulcan Talk 5 10-28-2008 10:14 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome