• 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.

Jet setting for 78 gs750 (VM carb)

  • Thread starter Thread starter gottogochop
  • Start date Start date
G

gottogochop

Guest
Okay, I ran into a little problem when I started to take every jet out of my carb to clean it. It wasn't until I started to put them back together that I read the manual. :clap:

The manual doesn't give this jet a name, it only says "do not turn or unscrew"

Well, I did, and I didn't record the number of turns it was at.:clap:

This is the jet I'm talking about, the one on the left, it has a spring also. I assume its a fuel mix screw?

I'm not really sure what to do at this point, so I came here!
Any help would be much appreciated!

c.jpg


--Paul
 
That's your fuel screw, the stock setting is 5/8 out from being "gently" seated. Your air mixture screw on the upper side of the carbs should be roughly double your fuel screw, so 1 1/4. Make sure you use the correct spring for each of those screws, the more dense spring goes with the air mixture screw. Just looked through your other posts and saw a picture of your bike. I saw that one for sale recently, not sure if you bought it or you're the guy selling it but either way you've got open pipes and pods. Your carb setting will be nothing like stock, nor should your main jets or your main needle settings. Yes it would have been helpful to know what the jets were before you pulled them apart, assuming they were set right, but you can start with the stock settings and hopefully they are somewhat close so at least the bike will start. Make sure you write down the jet numbers of all your jets, main, fuel, pilot, air, and anything else so you have a reference as well it would be very helpful to know what setting the clip is at on your main needle.
 
Last edited:
Also if you look close there will be a mark on the carb body like someone hit it with a chisel Turn it about 3/4 turn out and the slot should align with the mark
 
Yes on the 3/4...thats the basic setting they used because of the newly implemented EPA exhaust regs back then. Its intended to ever so lean so the bike would pass the EPA emissions standards. By GENTLY seated we mean that you gently grip the screwdriver with your thumb and 1 finger...when the screw stops..YOU STOP!! The make a little mark with a sharpy or whatever in line with the slot and then do the adkustment...which will get ya very close to the factory setting.
 
That's got early 80's wheels and front rotors on it? I woulda done spoke wheels.
 
You must log in or register to reply here.
Back
Top