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what happens if you don't plug the vacuum on carb #2

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    #1

    what happens if you don't plug the vacuum on carb #2

    found that my petcock is damaged and have ordered a new one. Looking through my old parts from other bikes over the years and put on a non vacuum petcock. flows great for now. What happens if you don't plug that vacuum on carb #2, out of curiosity? Vacuum leak?
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    #2
    Do you really need someone to tell you not plugging it's a bad idea?

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      #3
      Originally posted by SVSooke View Post
      Do you really need someone to tell you not plugging it's a bad idea?

      I know it's a bad idea, but I'm asking why. Does it create a vac leak? Does it cause it to pull less fuel? I didn't ask should I, I asked what happens.

      I've already plugged it, because I assume there's all sorts of stuff that can get sucked in, but I'm curious to how it affects the carb operation, for my own knoweldge.

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        #4
        Open vacuum port,yeah it's a giant vacuum leak.Will lean out that cylinder big time.Happy you did plug it.Worse case it could lean it enough to seize it.Overheat it for sure.
        Last edited by Guest; 08-09-2010, 09:20 AM.

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          #5
          sweet, thanks!

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            #6
            It'll run like crap.
            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

              #7
              "Leak" usually implies something small.

              I don't think the term would apply in this case.

              I think "vacuum DUMP" would be more appropriate.

              .
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              #2 son: 1980 GS1000G
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              Comment

                #8
                Originally posted by chef1366 View Post
                It'll run like crap.
                Only on one cylinder.

                :-)


                Life is too short to ride an L.

                Comment

                  #9
                  Originally posted by tkent02 View Post
                  Only on one cylinder.

                  :-)
                  Until that one let's GO and takes out the next 1-2 beside it...

                  Comment

                    #10
                    One cylinder running like crap usually makes the others trying to compensate run like crap as well.

                    At least as he said it was a what would happen not a should I plug it question.

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