• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Fuel Leaking Under Braking

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Guest
The bike is an 82 1100E. With a full tank (filled to within 1/2" or so of the filler neck) I will get fuel spilling out from around the gas cap under moderate braking. Not full-on emergency stops, just the typical braking during spirited street riding. The gas cap looks ok, it locks down solidly and the seal is in good shape. It looks like the fuel is getting out through vent holes in the cap. I have never had another bike dump fuel like this and it is a nuisance, especially with a tank bag in place. Is this normal or is there something amiss that I can fix to correct it?


Mark
 
Any chance of a pin hole leak near the filler neck/gas cap? I had some rice grain sized holes open up after cleaning out the rust.
 
hannibal said:
Any chance of a pin hole leak near the filler neck/gas cap? I had some rice grain sized holes open up after cleaning out the rust.
Click to expand...

I didn't see anything but will take a better look with a light this evening.


Mark
 
mmattockx said:
I didn't see anything but will take a better look with a light this evening.


Mark
Click to expand...

Simple way to check that is after dark. Wrap a small but bright flashlight with dark green garbage bag until it is thick enough to fully fit the fill opening, place the lens end into the tank and be sure if fits snugly, then turn it on.

The light will reflect back to the top of the tank, and should peek out if any pin holes are present.
 
Take the black plastic cover off the inside of the cap and youll see an oring that seals the lock cylinder from the tank. If its bad youll get leakage mostly from around the lock cylinder.
 
argonsagas said:
Simple way to check that is after dark. Wrap a small but bright flashlight with dark green garbage bag until it is thick enough to fully fit the fill opening, place the lens end into the tank and be sure if fits snugly, then turn it on.

The light will reflect back to the top of the tank, and should peek out if any pin holes are present.
Click to expand...

I will give this a shot today or tomorrow as time allows.


chuck hahn said:
Take the black plastic cover off the inside of the cap and youll see an oring that seals the lock cylinder from the tank. If its bad youll get leakage mostly from around the lock cylinder.
Click to expand...

Chuck, you may have the winner here. There is definitely gas residue on the lock cylinder and around it on the cap. I will have a look at that o-ring as soon as I can.


Thanks to all for the help with this,
Mark
 
I have looked far and wide for the OEM part number for that oring and still havent found it. I went to Harbor freight and got thier metric oring assortment for like $2.50 and used the closest one they had. Little tight fitting and it makes the turning of the key a bit heavier...but some grease and it seemed to stop my leakage.

Anyone with the OEM number for the lock cylinder oring please feel free to share.
 
You must log in or register to reply here.

Similar threads

R
77 GS 750 - Need Help!! Smoke From PCV Breather / Running Rough When Hot
Replies
3
Views
121
unfocused
unfocused
Jedz123
Restoring another down and out GS - Justin's GS1000G story
2
Replies
21
Views
791
sorenlan
S
U
Gas cap leaking
Replies
3
Views
211
USTrucker
U
B
81 GS650g intermittent bogging
Replies
6
Views
251
boredinmemind
B
N
82GS650GL Fuel leaking from between carbs....
Replies
4
Views
301
jbird7262
J
Back
Top