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

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  • Rein
    #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?
    Tags: None
    • SVSooke
      #2
      Do you really need someone to tell you not plugging it's a bad idea?

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        • Rein
          #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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            • SVSooke
              #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, 08:20 AM.

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                • Rein
                  #5
                  sweet, thanks!

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                    • Guest
                      #6
                      It'll run like crap.

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                        • Steve
                          GS Whisperer
                          • Jun 2005
                          • 35925
                          • southwest oHIo
                          #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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                            • tkent02
                              Forum LongTimer
                              Past Site Supporter
                              • Jan 2006
                              • 35571
                              • Near South Park
                              #8
                              Originally posted by chef1366 View Post
                              It'll run like crap.
                              Only on one cylinder.

                              :-)
                              http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                              Life is too short to ride an L.

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                                • Dave8338
                                  Forum LongTimer
                                  Past Site Supporter
                                  • Aug 2006
                                  • 11608
                                  • Annandale, MN
                                  #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...

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                                    • Skateguy50
                                      #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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