• 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.

float bowl overflowing

  • Thread starter Thread starter gssuzukixxx
  • Start date Start date
G

gssuzukixxx

Guest
Got may '77 GS750 all back together after complete carb clean. Synched the carbs, set the idle etc...it runs great. Took it for a short test ride and notice strong gas smell when stopped. #3 carb is pouring gas out of the overflow. I tapped on the float bowl with a wrench and it stopped. Rode home and when I got there the same carb is loosing gas again. Again I tap with wrench and it stopped.

Now I have the carbs of the bike yet again and have the float bowl off of #3. I can't see anything unusual about the float needle or seat but I don't want to put is all back together without being sure its fixed.

Any ideas what to look for that would cause the needle to hang up?

BTW I am getting tired of the smell of gasoline.

Brian
 
sounds like the float or something is getting hung up or sticking if it stops when you tap it.
 
Cradget

Cradget

gssuzukixxx said:
Got may '77 GS750 all back together after complete carb clean. Synched the carbs, set the idle etc...it runs great. Took it for a short test ride and notice strong gas smell when stopped. #3 carb is pouring gas out of the overflow. I tapped on the float bowl with a wrench and it stopped. Rode home and when I got there the same carb is loosing gas again. Again I tap with wrench and it stopped.

Now I have the carbs of the bike yet again and have the float bowl off of #3. I can't see anything unusual about the float needle or seat but I don't want to put is all back together without being sure its fixed.

Any ideas what to look for that would cause the needle to hang up?

BTW I am getting tired of the smell of gasoline.

Brian
Click to expand...

I had a similar issue with #4, ended up being a very small cradget inside the float needle valve seat. Could also check to make sure the float has good free action on the float pin.

It the float is really bent, it could bind when you put the bowl on.

You could check the float needle by moving it to another carb and see if the problem follows.
 
Do you still have a vacuum operated petcock connected to #3 carb? If so, test petcock, to make sure fuel is not dribbling down the vac line and filling the carb.
 
tom203 said:
Do you still have a vacuum operated petcock connected to #3 carb? If so, test petcock, to make sure fuel is not dribbling down the vac line and filling the carb.
Click to expand...

Good thought but no I have a manual petcock that at least I can trust to shut the gas off in these situations.

In fact it is a way to limp home if the carb won't stop overflowing: if I shut the petcock off I can ride 3 or 4 block before bike runs out of gas.

Brian
 
Sound like a sticking, binding float, or needle valve, I mean when you said you hit it and it stopped, that pretty much convinces me. I'd be focusing in that area.
 
Thanks for all the advice. Here is a front view of the floats. I can see now that they are not both vertical and they are not both the same height (right side is 1mm higher than left). The left one is most twisted...maybe the top of it contacts the side of the float bowl.
carbfloat.jpg


Chuck here is a pic of the bike in question. I figured it my look familiar to you.
Picture113.jpg
 
Yeah ive seen EVERY nut, bolt, and washer on one of those..LMAO. Straighten the floats so they are not leaning and reset the float hts. I would recheck every carb while you got them off..another 20 minutes just for piece of mind. Love that Pearl Black Bluing. Probably one of the nicest Zook colors ever in my opinion.
 
Take a pen light and look in the float seats and be sure they are clean and smooth...look at the points on the float needles and be sure the little spring loaded thing on the tops is loose and springing back as well. AND..be sure you have the gaskets on all the float seats as this will effect the distance before the needle contacts the seat surfaces.


 
Last edited:
OK I straightned out the float and checked fuel height on bench. Put it all back together and took ride around block. No overflow so hopefully it's fixed.

Will see in spring when i can do more riding.

Thanks for the help

Brian
 
You must log in or register to reply here.
Back
Top