• 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.

83 gs550 e exhaust on a 86 gs550e (will it fit?)

  • Thread starter Thread starter rlg5
  • Start date Start date
R

rlg5

Guest
Hi all,im just wondering if an 83 gs550e complete exhaust system will fit on an 86 gs550 e, i bought the bike with a 4into one with a supertrapp universal racing muffler, ive never been able to get it run as good as it should carbs are clean ive done everything i should , cleaned carbs 3x had the floats professionally adjusted,adjusted valves etc and i even bought a gunsons colortune and adjusted the air screws so the flame is blue but still the exhaust smells like gas and the plugs are black and sooty so im thinking of changing the exhuast back to stock in last ditch effort to get it running right im thinking it should fit but i wanna make sure. Anyone got insight THANKS
​
 
I'm assuming that you are referring to the U.S. model, but I didn't see location information on your profile. The engines were the same 83-86, and (almost) every exhaust system that I have seen on E-bay was the same as the setup on my GS550 ES. If you look at the exhaust system diagrams on (for example) cheapcycleparts.com http://www.cheapcycleparts.com/oemparts/a/suz/50d3f7d1f8700230d8b4cdb3/muffler-model-f-g , then you can make a better guess as to whether or not the OEM setup from an 83 will fit on your bike. The ones that I have seen that are different have a 2 going into one for each side with a balance pipe, and my 86 has a right side. a left side, and a center exhaust pipe pair that hooks into the left and right sides (like in the diagram).

Is your bike running well? Idles nicely, smooth mid range, pulls strong at the wide open throttle position?

The Gunson's colortune showing blue means that the mixture is good for whatever throttle setting your are using at the moment (likely the pilot air and fuel jets unless you are on a dyno). However, you probably don't ride using the pilot jet throttle setting, so it is possible that your other jetting is not burning with a good mix.

A couple of other thoughts: the P.O. made some changes, including the exhaust system - have you checked to see if any of the jetting was changed? What about the spark plugs - are they what the factory recommended, or a different type (colder / hotter)? Standard airbox, or pods?

I would expect a 4-into-1 would flow better (otherwise, why bother?) than the stock system, and intuitively I would expect a leaner mixture as a result of more air going through the system. Having plugs suggesting too rich of a mixture sounds wrong to me.
 
You must log in or register to reply here.
Back
Top