• 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.

question regarding setting float height

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

Guest
I had my '77 GS750 running, finally, and had (I surmised) #2 cyl running lean, and uneven idle. Since it had supposedly been sitting for quite a while prior to my acquiring it, I decided to pull the carbs, tear down and clean them, and see if that would help. Everything went fairly well....only thing I had to replace was a float bowl gasket, since it tore coming off. I ordered one from Suzuki, but had some issues with them ordering the wrong part #, and didn't want to wait any longer for it, so I just made a new one. Put them all back on the rack last night, and hope to put them on the bike soon (if the temp ever comes back to positive numbers).

My question, now that I think about it, is if I used the proper reference point when setting float height. If I remember correctly, it said in my Clymer manual to measure from the floor of the float chamber, and set the float height to 26mm. Well, I thought they meant the floor, down inside the carb, but the bottom of the float wasn't even close. So I studied the picture in the book, which wasn't the greatest, and figured that the floor of the chamber must be the mating surface where the float bowl gasket goes. When measuring from there, they were much closer to spec. Still 3-4mm off, but it made more sense that way. I didn't have much doubt when I did it, but I read a few post today over lunch, and it raised the question in the back of my mind, so I thought I might as well get confirmation on how I did it. Hopefully this will take care of my lean #2 and idle issues, and I can get on track to having my baby on the road. Thanks for the help,

Ryan
-------
mueller@xta.com
 
carb types

carb types

Forgot to mention that these are the older mechanical slide carbs, Mikuni BS's, I believe. Not CV's. :P
 
You are correct about measuring from the surface where the float bowl fits. You should be measuring to what is actually the bottom of the float. Measure with the carbs inverted and the float just resting on the needle, not pushed down.
 
they are measured from the gasket surface with the gasket removed. Or from the gasket and add 1mm? to measurement. ALso if you have a lean condition ??? did you check the intake boots and O rings, if they are bad it will cause it to run lean.. Don't forget the vacuum line for the petcock hooks up to the #3 carb
 
You must log in or register to reply here.
Back
Top