• 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.

Carb Tunning a 81 GS450tx Mikuni CV

  • Thread starter Thread starter mpencegs
  • Start date Start date
M

mpencegs

Guest
Hey guys.. I finally have Scarlett running after the top end rebuild and I am tunning the carbs. I have them bench synched and I want to make sure I understand the next steps and pilot air screw correctly.

My pilot air screw is set in the back aka next to the engine instead of the airbox. From what I have read , this indicates it will regulate the amount of AIR in the mixture. I turn the screw right to richen and left to lean. Please confirm!

Next I have read suggestions to set to 2-3 turns out and also 1 1/4 turns out for baseline on the screws. I believe that the 1 1/4 turns are what I need to use and the 2-3 are for the 4 cylinder carbs but want to confirm.

If I am going to Vacuum Sync the carbs is that all I do or would I still use the High RPM method to further dial in the carbs and then complete that using the Chop method of full throttle, kill the engine and check the plugs(Summary)
 
Thats the cleaning guide i followed.. All clean new orings and intake orings.. Just need to tune now..
 
Yep, screw is just above the throttle butterfly pivot.

Have a look at Flaming Chainsaw's 450 carb rebuild guide on BassCliff's site and he points them out clearly.

In is leaner, out is richer.

Have you got the stock airbox and exhaust? Oiled the air filter so it's damp and not dripping?
 
Sure did.. I will review.. She starts and runs great right now just want to make sure i have her dialed in.. Vacum sync this weekend
 
You must log in or register to reply here.
Back
Top