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    Carb Overflow

    Just thinking aloud really.....

    I occasionally get a puddle on the garage floor. It's 100% gas & comes from the bowl overflow tubes (mostly from Carb 3 from memory but sometimes I think it's from more than one carb).

    Some facts:

    1. There is no gas getting in to the oil.
    2. The Petcock was brand new OEM Suzuki but that was around 6 years ago. Appears to function properly when tank removed.
    3. The puddle is not drastic & generally only appears when bike has sat for some time & is then disturbed by moving it, shaking it etc.
    4. There is no "rhym or reason" as to the timing (other than movement) of when gas will appear.
    5. Carbs were rebuilt 6 years ago & have been removed since (when I did new Kawi Z1 boots) and are clean.


    So....

    My first thought was that carb bowls are overfilling from a leaky carb inlet valve BUT where is the added gas coming from?
    Originally I thought it was just the gas from the fuel line (and it could well be) but the bowls do appear to re-fill & spill over repeatedly (i.e. it doesn't just dump gas once & then not dump it again).

    My thinking is either my floats are set too high or the inlet valve is leaking plus my petcock must have a very slow leak as well for this to happen (or perhaps there is enough gas in the gas line for it to be able to spill a few times, as I say above, it's not a big puddle!)

    Thoughts please??
    1980 GS1000G - Sold
    1978 GS1000E - Finished!
    1980 GS550E - Fixed & given to a friend
    1983 GS750ES Special - Sold
    2009 KLR 650 - Sold - gone to TX!
    1982 GS1100G - Rebuilt and finished. - Sold
    2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

    www.parasiticsanalytics.com

    TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

    #2
    Only sometimes? Sticky float needle. Probably just enough to drain what gas is in the line.
    1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
    1985 GS1150ES stock with 85 Red E bodywork.

    Comment


      #3
      Used to be only sometimes... now it's probably each time I park it, does it as soon as I move it.

      This is one of those niggles that I haven't dealt with for probably a year.

      Given that the bike has been known to sit for a 3-4 weeks at a time on occasion perhaps one of them is just gummed up...
      1980 GS1000G - Sold
      1978 GS1000E - Finished!
      1980 GS550E - Fixed & given to a friend
      1983 GS750ES Special - Sold
      2009 KLR 650 - Sold - gone to TX!
      1982 GS1100G - Rebuilt and finished. - Sold
      2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

      www.parasiticsanalytics.com

      TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

      Comment


        #4
        Put a little berrymans in a full tank
        1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
        1985 GS1150ES stock with 85 Red E bodywork.

        Comment


          #5
          Yup, float needle sticking. Add some additive to your fuel each time you gas up. You could run a tank or two through of additive to try and clean what's in the carbs.
          Rob
          1983 1100ES, 98' ST1100, 02' DR-Z400E and a few other 'bits and pieces'
          Are you on the GSR Google Earth Map yet? http://www.thegsresources.com/_forum...d.php?t=170533

          Comment


            #6
            Yeah, I was running seafoam for a bit, now been running stabil but should probably switch back to sea foam I guess. Part of the problem is not enough riding (a lot of my mileage goes on the KLR and the kids stopping play!).
            1980 GS1000G - Sold
            1978 GS1000E - Finished!
            1980 GS550E - Fixed & given to a friend
            1983 GS750ES Special - Sold
            2009 KLR 650 - Sold - gone to TX!
            1982 GS1100G - Rebuilt and finished. - Sold
            2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

            www.parasiticsanalytics.com

            TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

            Comment

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