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    #1

    fuel level

    The GS750 service manual calls for a fuel level of 2.5mm-3.5mm from fuel bowl mating surface using the clear tube method. That is with the engine running at 1000-1100 RPM. Does anyone know what this would correspond to with the engine off.

    Thanks
    Brian
    Tags: None
    #2
    It wouldn't correspond.


    Life is too short to ride an L.

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      #3
      No..if it was meant to be a reading with the engine off, I would think they would have published that method. Ive never seen it anywhere either.
      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

      Comment

        #4
        You can measure with the engine off just fine, just make sure the petcock is set to Prime so the float bowl needles are getting good fuel flow. Testing with the engine running provides no benefit as near as I can judge.
        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

        Comment

          #5
          Originally posted by Nessism View Post
          You can measure with the engine off just fine, just make sure the petcock is set to Prime so the float bowl needles are getting good fuel flow.
          Ed, have you done this test with the engine off and again with it running to compare the two?

          With the engine off there is no flow....


          Life is too short to ride an L.

          Comment

            #6
            Originally posted by tkent02 View Post
            Ed, have you done this test with the engine off and again with it running to compare the two?

            With the engine off there is no flow....
            I've done extensive testing during the writing of my carb rebuild tutorial, and the only thing I noticed is you need to make sure the float needles have some head pressure on them otherwise they won't open. With the engine running the petcock will flow without setting to prime, plus the engine vibration makes sure the needles don't stick at all. Honestly, testing with the engine running is fine but I just don't like messing with fuel on a hot engine.
            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

            Comment

              #7
              Originally posted by Nessism View Post
              You can measure with the engine off just fine, just make sure the petcock is set to Prime so the float bowl needles are getting good fuel flow. Testing with the engine running provides no benefit as near as I can judge.
              Thanks Nessism. I have the levels set at 2.5-3mm with engine NOT running. But for interest sake I will check again when I have the everything back together and running to see what difference it makes with engine running.

              Brian

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