• 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.

GS550 airbox manifold differences? The 80 is stumbling of idle. Help please

  • Thread starter Thread starter bomber737
  • Start date Start date
B

bomber737

Guest
I am working on 2 GS550's. One is a 80 and the other one is a 82. I am having issues with the 80 right now boging down from just of idle to about half throttle. I have ultrasonically cleaned the carbs and checked all the slide diaphrams. There seem to be no pin holes. I have the idle mixture screws set at 3 1/4 because that is where the colortune gave me the best most consistent flame color. What I did notice is the intake boots in the 82 are different. The 82 550's look like this
20150622_101156_1.jpg

20150622_101215_1.jpg

As you can see, the inner boots are narrowed down while the outside ones look like ones I have seen on other gs's. On the 80 all the boots look like the ones on the outer on the 82. Did I order the wrong intake manifolds on the 80? Should they look like the ones on the 82?
 
Both the 80 and 82 share the same boots (airbox to carb inlet)apparently with inners different from outers. Not sure why throat size here would cause your issue. I seem to recall that others claim that colortune is sorta useless on cv carbs. 3 1/4 out on idle/air mixture screw sounds far out to me.
 
Those who claim the colortune doesnt work are competely wrong. I have used mine on many bikes and they are really the best way to set the mixture screws hands down. It really is the only way to see what color the combustion and allows you to set the idle mixture screw for most consistent and bluest combustion. I though that 3 1/4 was way out but I have been having an issue with my Gs1000 when it transitions from idle to just off idle. It has been very sensitive to throttle position. I enrichened the idle mixture screw to 3 1/2 and not it is not such an abrupt transition, it has made it much easier to control speed in parking lots and at slow speeds in traffic. Bike runs like a top as well. So my plan with the 80 that is stumbling is I will be pulling the carbs and ultrasonically cleaning them. I will be checking the boots for leaks and the condition of the rubber on the vac slides. perhaps I can find a pin hole or something.
 
You must log in or register to reply here.
Back
Top