• 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.

oring missing

  • Thread starter Thread starter hoppy1
  • Start date Start date
H

hoppy1

Guest
Hi everyone. I am in the process of rebuilding my other set of carbs for my 850G, have ordered oring set from Mr. Barr. When I removed the choke pistons, the orings was missing from the caps. Would this cause the bike to run lean?? Thanks, Mark
 
probably so. more air with out more fuel will make a lean condition
 
hoppy1 said:
Hi everyone. I am in the process of rebuilding my other set of carbs for my 850G, have ordered oring set from Mr. Barr. When I removed the choke pistons, the orings was missing from the caps. Would this cause the bike to run lean?? Thanks, Mark
Click to expand...

Mark,

yep, sounds about right. Fully clean/dip your carbs... spraying carb cleaner and air wont clean it sufficiently.

-Mark (also with a 1980 GS850G... sort of....)
 
O Rings Missing

O Rings Missing

I found an O ring missing on the throttle valve of mine:

See: My GS1100G Blog - Butterfly Capers

and whilst I am doing the carb rebuild I have ordered those choke O rings (but not the rubber caps) as mine were very hard.

I would guess someone had "rebuilt" yours at some time and lost one when they were being reassembled.

Greetings
 
I was always wondering why they even put one there in the first place.


The plunger has a rubber tipped base, the stem comes up thru the dust bootand slides, and the boot isnt an airtight seal by any means, so why the oring??

Its my impression that if the rubber sealing surface on the plungers is good, then the rest is just dress up.
 
hoppy1 said:
When I removed the choke pistons, the orings was missing from the caps. Would this cause the bike to run lean?? Thanks, Mark
Click to expand...
No, that missing o-ring will not affect the operation of the engine in any way.

chuck hahn said:
I was always wondering why they even put one there in the first place.
Click to expand...
I agree, Chuck, I think it's only there to seal moisture out of the threads. :o

When the "choke" plungers are closed (normal running), there is virtually no chance that enough air is going to get past the plunger to affect operation.
While the dust caps are not real tight on the plunger shaft, they do touch all around and provide a modest seal.

.
 
Very MODEST at that if they are old and the rubber has shrunk. Best place to look for damage is at the plunger ends. Inspect the rubber seats AND be sure the centering pin is not bent..that pin has to perfectly align with the hole in the bottom of the carb body or it WILL hang up and can cause air to bypass in that carb.

Remeber how we used to roll push rods form our cars on something to see if they were bent? Well the same applies here. Roll them ( they will go in a circle) but pay attention to the end of the pin to see it looks straight.
 
Guess you could also lay the stem on something that allows the base to clear and just finger roll them and watch the end of the pin for trueness.
 
chuck hahn said:
Guess you could also lay the stem on something that allows the base to clear and just finger roll them and watch the end of the pin for trueness.
Click to expand...

Thanks for all the info, I couldn't see how any air could get in if the choke piston was closed. And, I will check all the piston tips for being bent. I have an old peice of glass I can use.
 
You must log in or register to reply here.
Back
Top