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Have to prime to fill float bowls when sitting more than 24 hours

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    #16
    I've swapped out my needles and seats and checked my float heights. Everything seems on point but it still does the same thing. Very puzzling.

    Matt
    1978 Suzuki GS750

    Past bikes owned:
    1978 Suzuki GS750E, 1979 Suzuki GS750E, 1980 Suzuki GS850, 1977 Suzuki GS550, 1969 Honda CB350, 1976 Harley Davidson SS175, 1979 Motobecane 50V, 1978 Puch Maxi, 1977 Puch Newport, 1980 Tomos Bullet, 1978 Motobecane 50VLA, 1978 AMF Roadmaster

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      #17
      The tubes are also in their right spot as well.
      1978 Suzuki GS750

      Past bikes owned:
      1978 Suzuki GS750E, 1979 Suzuki GS750E, 1980 Suzuki GS850, 1977 Suzuki GS550, 1969 Honda CB350, 1976 Harley Davidson SS175, 1979 Motobecane 50V, 1978 Puch Maxi, 1977 Puch Newport, 1980 Tomos Bullet, 1978 Motobecane 50VLA, 1978 AMF Roadmaster

      Comment


        #18
        Originally posted by mattd1205 View Post
        It usually takes 4-5 seconds for the fuel to stop flowing (clear fuel filter)
        first thing that struck me was clear fuel filter do you have an extra filter they are not recommended as generally they will not allow the amount of fuel to pass through if this is an extra I would recommend you remove it.
        The big guy up there rides a Suzuki (this I know)
        1981 gs850gx

        1999 RF900
        past bikes. RF900
        TL1000s
        Hayabusa
        gsx 750f x2
        197cc Francis Barnett
        various British nails

        Comment


          #19
          Originally posted by fastbysuzuki View Post
          first thing that struck me was clear fuel filter do you have an extra filter they are not recommended as generally they will not allow the amount of fuel to pass through if this is an extra I would recommend you remove it.
          I just have the one inline filter. is it superfluous? I know I've got a filter in the petcock but I'm hesitant to run without the inline because I know there is some debris at the bottom.

          Matt
          1978 Suzuki GS750

          Past bikes owned:
          1978 Suzuki GS750E, 1979 Suzuki GS750E, 1980 Suzuki GS850, 1977 Suzuki GS550, 1969 Honda CB350, 1976 Harley Davidson SS175, 1979 Motobecane 50V, 1978 Puch Maxi, 1977 Puch Newport, 1980 Tomos Bullet, 1978 Motobecane 50VLA, 1978 AMF Roadmaster

          Comment


            #20
            We'll personally I would take off the tank and swill the debris out reinstall and remove the xtra filter this filter can and will likely cause running problems and I was wondering if when running the level in the bowls is low so when you finish a ride there is little fuel in the bowls this may be the cause of having to prime before it will start.
            these filters are generally designed for a pumped or pressurised system and the Gs is gravity fed thus restricting the flow.
            The big guy up there rides a Suzuki (this I know)
            1981 gs850gx

            1999 RF900
            past bikes. RF900
            TL1000s
            Hayabusa
            gsx 750f x2
            197cc Francis Barnett
            various British nails

            Comment


              #21
              Originally posted by fastbysuzuki View Post
              We'll personally I would take off the tank and swill the debris out reinstall and remove the xtra filter this filter can and will likely cause running problems and I was wondering if when running the level in the bowls is low so when you finish a ride there is little fuel in the bowls this may be the cause of having to prime before it will start.
              these filters are generally designed for a pumped or pressurised system and the Gs is gravity fed thus restricting the flow.
              ok I'll try that next. I'm thinking when I ride it tomorrow I'll shut it off and check if it takes anymore fuel when turning on the prime.

              Matt
              1978 Suzuki GS750

              Past bikes owned:
              1978 Suzuki GS750E, 1979 Suzuki GS750E, 1980 Suzuki GS850, 1977 Suzuki GS550, 1969 Honda CB350, 1976 Harley Davidson SS175, 1979 Motobecane 50V, 1978 Puch Maxi, 1977 Puch Newport, 1980 Tomos Bullet, 1978 Motobecane 50VLA, 1978 AMF Roadmaster

              Comment

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