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    Float needle / seat issue?

    While parked I've noticed fuel drains from the hose from the petcock to the carbs over a two three day period. This isn't normal, right?

    I fear it's draining into the engine as there's nothing coming out the pods. I'm keeping an eye on the engine oil level, no noticeable difference and I've been sniffing the oil for gas, but again nothing.

    So, do I have a needle which is not seating properly?
    -Mal

    "The only reason for time is so that everything doesn't happen at once." - B. Banzai
    ___________

    78 GS750E

    #2
    It's normal for fuel to evaporate out of the float bowls. My guess is this is what's happening.
    Ed

    To measure is to know.

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

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

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      #3
      Don't worry with VMs - if the carb overflows the fuel will run down the drain hoses fixed to the bottom of the float bowls.

      As for losing that tiny amount of petrol - it's either evaporation in the carbs or the float valves are letting fuel through. However, if it's the latter, again don't worry. The float valves weren't intended to hold fuel back like that, which is why the bike is fitted with a vacuum tap.
      79 GS1000S
      79 GS1000S (another one)
      80 GSX750
      80 GS550
      80 CB650 cafe racer
      75 PC50 - the one with OHV and pedals...
      75 TS100 - being ridden (suicidally) by my father

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        #4
        Originally posted by Nessism View Post
        It's normal for fuel to evaporate out of the float bowls. My guess is this is what's happening.

        Originally posted by hampshirehog View Post
        Don't worry with VMs - if the carb overflows the fuel will run down the drain hoses fixed to the bottom of the float bowls.

        As for losing that tiny amount of petrol - it's either evaporation in the carbs or the float valves are letting fuel through. However, if it's the latter, again don't worry. The float valves weren't intended to hold fuel back like that, which is why the bike is fitted with a vacuum tap.
        Thanks guys, set my mind at rest. Had I not had a clear hose I wouldn't have noticed and just gone about my business. Much appreciated.
        -Mal

        "The only reason for time is so that everything doesn't happen at once." - B. Banzai
        ___________

        78 GS750E

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