GS650G carb cleaning

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  • duaneage
    Forum Guru
    GSResource Superstar
    • Apr 2004
    • 6149
    • Wilmington Delaware
    #1

    GS650G carb cleaning

    I have a 1981 GS650G with 12K miles on it. I am considering cleaning the carbs and replacing the float seats as both a preventative measure and to improve driveability. I have seen a $12.00 per carb kit that includes a few gaskets and the needle assembly, is this all that is needed to rebuild? Could I use an inexpensive mercury meter to resync the carbs after I am done or do I need to get a shop to use a more accurate gauge?

    The bike runs pretty well so I am hesitant to clean the carbs. Should I just leave it alone or maybe take it to a professional?

    The pictural on rebuilding carbs looks easy, are they GS650 carbs in the pictures?
    1981 GS650G , all the bike you need
    1980 GS1000G Power corrupts, and absolute power corrupts absolutely
    Tags: None
    • 10yeareer
      #2
      If its running well and not leaking any gas, I would just ride it.

      I'm not sure if they are 650, however, when I rebuilt mine everything appeared exactly the same.

        Comment

        • KEITH KRAUSE
          Forum Guru
          Charter Member
          GSResource Superstar
          Past Site Supporter
          • Oct 2002
          • 8862
          • Angeles Forest, So.Calif./Red rocks of Southern Utah.
          #3
          If the bike is running good and the carbs show no visible problem, I would leave it alone. With only 12,000 miles, the (most likely) original float needle valves should not be worn yet. If you do have any leaking/overflowing of fuel out the overflow line(s) it would be most likely varnish or some dirt interfering with the valves ability to seat or a sticking float(s).
          Motion Pro makes a simple but good working mercury vacuum tool. About $35 last I looked. Easy to set up and use. There are others that work fine too.
          And on the seventh day,after resting from all that he had done,God went for a ride on his GS!
          Upon seeing that it was good, he went out again on his ZX14! But just a little bit faster!

            Comment

            • Anonymous
              #4
              If the outsides of your carbs look the same then they are the same on the inside. The 79 (or 80?) and earlier carbs look really different.

              Steve

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