• 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.

79 gs850 carbs

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

Anonymous

Guest
what do I set the jet on the bottom of the carbs at for a starting point. I forgot to skrew them in and count the rotations. :?

Thanks Les
1979 GS850g
 
i was told that 3 turns out are the max
turn your idel as low as you can go before stall, then turn air screw in a direction listening for idle to increase, turn untill idle starts to drop off then go back to get highest idel (you may have to pull one of the spark plug wires of a carbs you are not tuning so that you can hear the idel change) if you end up going mor then 3 turns out then

it is pointless (a guy from motorcyclecarbs.com--good folk there) so if you end up turning the screw out more then 3 you need to adjust your piliot jet to a smaller size so you can get more fuel. then turn the screw all the way back in and start over. i hope it helps,

so basiclly start at 1.5 turns and seee where that takes you.

-ryan
 
I assume you're talking about the pilot screws underneath?
These are set at the factory and are commonly set differently for each cylinder. It can take some testing/fine tuning to get them right. If your intake/exhaust is stock, I would set them at 1 1/4 turns out. Then warm up the motor first and adjust the side air screws for the highest idle you can achieve. Turn 2 screws at a time in 1/2 turn increments to more easily hear the rpm's. Then fine tune them. They will generally be 1 3/4 to 2 turns out. After all 4 are set, re-adjust the idle with the idle screwknob to around 1100 rpm. If you can, ride the bike around for about 5 miles at a steady 40 mph and get some plug reads. Make adjustments according to each plugs color. The pilots are sensitive. Just a 1/8 turn can change the plug color.
 
You must log in or register to reply here.
Back
Top