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gs 550t carb problem

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    #1

    gs 550t carb problem

    Hi as im new to this form i really need your help
    My 550t runs the carbs empty when i drive it above 70mph for any more than 2 miles. I have tried all the normal checks (cleaned the carbs / changed the fuel in line filter i fitted and removed / cleaned petcock filter /changed fuel lines / tested driveing it with petrol tank cap off and still no luck . If i keep the speed around 60 it runs but badly and above this for a length of 2 miles it cuts out dead ? park up for ten mins to let the carbs refill press the start button and on you go again . it is very annoying on a long spin so any help would be great . Oh ye im a lot better with a spanner than i am with computers thats why i prefer older bikes
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    #2
    As an experiment try without the fuel filter. It could be blocking flow. Also check the petcock to see if it's flowing well.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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      #3
      Removed filter and no difference and petcock lets enough fuel through to run a v8 eng

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        #4
        Do you have the petcock in the on setting or is it in PR for prime? If you are running in PR then switch it to on and make sure the vacuum hose is fitted properly

        It almost sounds like the petcock has failed
        Cowboy Up or Quit. - Run Free Lou and Rest in Peace

        1981 GS550T - My First
        1981 GS550L - My Eldest Daughter's - Now Sold
        2007 GSF1250SA Bandit - My touring bike

        Sit tall in the saddle Hold your head up high
        Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
        and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

        Comment

          #5
          tried petcock in all positions and tried running it down the road on a fuel bottle . Also if it was in the prime it would flood the carbs but this is emptying them dry as if their was no fuel getting in and its only when doing speed over 70mph ??? im truely lost

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