Fuel overflow

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  • srwalters
    XSive
    • Jul 2008
    • 28
    • Nashville

    #1

    Fuel overflow

    XS Newbie

    I have blown out the carbs and now Fuel flows out of carb 3 & 4. When I blew out 3 & 4 it now flows out if 1 & 2 carb and over flow.

    Need help! any suggestions? It was running great until this happened. Thanks
    1980 XS11SG/sf
  • tarzan
    XS-XJ Guru
    • Apr 2008
    • 1700
    • Chandler,Az.

    #2
    Do you mean you blew compressed air back through the fuel lines?If you did you may have blown some dirt into the needle and seats or even damaged something.I think I would take the carbs off and have a little look inside.
    Just curious.If it ran great why did you mess with it?
    BTW welcome to the site.
    80 SG XS1100
    14 Victory Cross Country

    Comment

    • srwalters
      XSive
      • Jul 2008
      • 28
      • Nashville

      #3
      It was running great until I started heading home. It started running rough and I noticed it was poring fuel. I puled off the carbs sprayed carb cleaner and used compressed air to clean out the ports. I never used air in the fuel hoses.
      1980 XS11SG/sf

      Comment

      • tarzan
        XS-XJ Guru
        • Apr 2008
        • 1700
        • Chandler,Az.

        #4
        In the vacuum ports then?Well it looks like you are now part of the club.If your carbs flood and overflow then they need to come apart for the big cleaning.LOL.
        Well at least its the end of summer.Take your time and be very thorough and make sure they are good and clean and there is lots of help here .
        So good luck and I'm sure a lot of guys will be watching to see what the problem is and to be of service.This place is great.
        80 SG XS1100
        14 Victory Cross Country

        Comment

        • oldyam80sg
          XS-XJ Guru
          • Apr 2007
          • 2042
          • Hackettstown , New Jersey

          #5
          Well at least its the end of summer.-I usually will ride until it snows or unless they start salting the roads if it gets cold enough or feels like it will snow.
          1980 XS1100 SG
          Inline fuel filters
          New wires in old coils-outer spark plugs
          160 mph speedometer mod
          Kerker Exhaust
          xschop K & N air filter setup
          Dynojet Recalibration kit
          1999 Kawasaki ZRX1100
          1997 Jeep Cherokee 4.5"lift installed

          Comment

          • bikerphil
            Master of XSology
            • Jan 2008
            • 8634
            • South Flori-DUH

            #6
            Tap the carb bowls with a screwdriver handle while it's running. Sometimes this will dislodge the blockage in the float valve.
            2H7 (79) owned since '89
            3H3 owned since '06

            "If it ain't broke, modify it"

            ☮

            Comment

            • oldyam80sg
              XS-XJ Guru
              • Apr 2007
              • 2042
              • Hackettstown , New Jersey

              #7
              The better way would be to remove the float and the float valve and see if there is crap in the screen.For me that was the difference in not getting fuel to that carb and the carb leaking.
              1980 XS1100 SG
              Inline fuel filters
              New wires in old coils-outer spark plugs
              160 mph speedometer mod
              Kerker Exhaust
              xschop K & N air filter setup
              Dynojet Recalibration kit
              1999 Kawasaki ZRX1100
              1997 Jeep Cherokee 4.5"lift installed

              Comment

              • srwalters
                XSive
                • Jul 2008
                • 28
                • Nashville

                #8
                And it was just getting into the good riding weather, at least in the afternoon.

                Thanks I will keep all posted and, I have started looking for the rebuild kits.

                I will also look in to the trash in the screens. If anyone else has any suggestions I will continue to look back every day or so. I think this site is great.
                1980 XS11SG/sf

                Comment

                • egsols
                  XS-XJ Guru
                  • Jan 2006
                  • 1090
                  • Barrie, Ontario, Canada

                  #9
                  Don't forget about the orings in the float seats. Lots of members had fixed their leaks by just replacing the orings.
                  Ernie
                  79XS1100SF (no longer naked, now a bagger)
                  (Improving with age, the bike that is)

                  Comment

                  • psycoreefer
                    XS-XJ Guru
                    • Feb 2008
                    • 1557
                    • Minden, NV

                    #10
                    Don't forget about the orings in the float seats. Lots of members had fixed their leaks by just replacing the orings.
                    you didn't mention what year your bike was, the 78's and 79's didn't have the above mentioned o-ring.

                    You've probably notice most everyone has their bike in the "signature". Its helpful because then everyone knows what year/model you have, and you don't have to remember to post it everytime.
                    1979 xs1100 Special -
                    Stock air box/K&N Filter, MAC 4-2 exhaust, Bad-Boy Air horn, TC fuse box, Windshield, Soft bags, Vetter Fairing, Blinkers->Run/Turn/Brake Lights, Headlight Modulator, hard wire GPS power

                    Short Stack - 1981 xs1100 Standard - lowered for SWMBO.

                    Originally posted by fredintoon
                    Goes like a train, corners like a cow, shifts like a Russian tractor, drinks like a fish, you are gonna love it.
                    My Bike:
                    [link is broken]

                    Comment

                    • egsols
                      XS-XJ Guru
                      • Jan 2006
                      • 1090
                      • Barrie, Ontario, Canada

                      #11
                      What year?

                      His profile says '80, but you're right it helps if its in the signature line.
                      Ernie
                      79XS1100SF (no longer naked, now a bagger)
                      (Improving with age, the bike that is)

                      Comment

                      • srwalters
                        XSive
                        • Jul 2008
                        • 28
                        • Nashville

                        #12
                        I haven't figured out how to add this info in the signature. I have an 1980 XS11SG Special. I have found out that I have to order parts for a 1979SG if I want the right parts.

                        I have cleaned out the carbs, adjusted the floats and used compressed air to blow out all ports.

                        I bought the bike about 5 months ago and after the carb tear down I noticed one brass washer (bottom screw needle valve)was busted and 3 missing washers from the screw that holds the low idle jets.

                        It is running again but has a stunble between 2000 and 3000 on take off. But I am back on the road.
                        Last edited by srwalters; 10-04-2008, 05:47 PM.
                        1980 XS11SG/sf

                        Comment

                        • planedick
                          XS-XJ Guru
                          • Mar 2005
                          • 2068
                          • Yorba Linda, California

                          #13
                          1979SG?

                          '79 is SF, '80 is SG The way it works is '78 is E, '79 is F, '80 is G and '81 is H and the S means Special. There was no SE, but there was a SF, SG, and I'm not sure there was a SH, maybe someone else knows....
                          You can't stay young forever, but you can be immature for the rest of your life...

                          '78E "Pathfinder" Show bike...
                          Lovingly restored by Dave Delzell
                          Drilled airbox
                          Tkat fork brace
                          Hardly mufflers
                          late model carbs
                          Newer style fuses
                          Oil pressure guage
                          Custom security system
                          Stainless braid brake lines

                          Comment

                          • srwalters
                            XSive
                            • Jul 2008
                            • 28
                            • Nashville

                            #14
                            Ok I was looking at the frame that is 3J6-xxx and the motor says 2H7-xxx.

                            Everytime I order parts for an 80 model I get the wrong parts. So when looking for parts, what should I look for???
                            1980 XS11SG/sf

                            Comment

                            • rover
                              XSive Maximus
                              • Jan 2004
                              • 765
                              • central WI (715)

                              #15
                              According to the number you have posted, you have a 78-79 engine in an 80 frame
                              put something smooooth betwen your legs, XS eleven
                              79 F (Blueballs)
                              79 SF (Redbutt)
                              81 LH (organ donor)
                              79 XS 650S (gone to MC heaven)
                              76 CB 750 (gone to MC heaven)
                              rover has spoken

                              Comment

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