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    Gas dripping at idle

    So my 84's been down about 3 weeks now (vacation and sick of messing with the beast). Just wired in a new CBR Reg/Rec and installed a new Electrosport stator. Charging problems resolved. However, when I was running it in the garage to check the charging system, I noticed it was dripping gas out of the 3 & 4 carbs. I couldn't see where, just dripping off the bottom of the bowls and the rail that holds all 4 together. This while on the centerstand.
    Shut the motor off and the dripping stops. Start the motor and dripping starts again, enough to form a puddle on the transmission.

    Thing is, carbs are clean but o rings are not new. They were both soft and round (not flattened out) and pliable so I believe they are okay...., float level set, the whole shebang, and the bike has never done this to me before. Remember I was riding 3 weeks ago. Fuel valve is believed to be correctly operating. Stuck float needles, maybe? And why would they stick? Clean gas, clean tank, new fuel, vacuum and overflow/breather lines. What more could there be to look at?

    I think I need an exorcism.......

    84 GSX 750SE Katana

    #2
    But a little Berrymans in the tank and ride it.
    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.

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      #3
      Try some cleaner.. The O rings should be replaced regardless of what they look like to you. Your eyes can't tell if they are good or bad

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        #4
        dripping fuel

        gday guys, before anything recheck that your float heights are correct, it sounds like there is too much fuel in the bowl, and its coming out the overflow, between the carbs, regards.

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          #5
          I'm not the only one with this problem then.
          I started the bike on Sunday and it wasn't running right at all. No.2 exhaust barely getting hot and then fuel started coming out of No.2 carb overflow. I went for a quick ride on it and the fault seems to have cleared. I assume it was the float sticking and causing the bowl to overfill.
          Oops nearly forgot...It's a 79 GS1000.

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            #6
            So I went out this morning and gave it another try....no gas leaking anywhere. Rode around the neighborhood for 15 - 20 mins, still no leaking. Gave the float bowls a good tap with the handle of a screwdriver just for good measure. Maybe it's given up on tormenting me (for the moment, anyway...).

            Thanks for the help folks, you're what makes this forum great!

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              #7
              Problems that go away on their own often come back. If it were me I’d just go ahead and replace the O-rings in the carbs with a kit from cycleorings.com. Small amount of work up front replacing OLD seals, affords reliable operation instead of hoping the leak does not return.
              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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