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Unknown part left over after reassembly

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  • #1

    Unknown part left over after reassembly

    Hello all,

    On behalf of my brother who owns a 81 XS1100, he found an extra part left over after minor teardown and rebuild.

    I thought it was a carb jet, but I was wrong.

    Any ideas?

    Thank you.

    http://twitter.com/BigDodge440/statu...067200/photo/1
    Last edited by BigDodge440; 07-05-2013, 04:36 PM. Reason: image link problem
    Tags: 1981 xs1100 extra part
  • #2
    Forgot the pic.
    Nate

    78 XS11 "Matilda" 2H7 000364

    2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
    Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
    Shinko 712s, HID Headlight, RC Performance Exhaust
    Bikemaster Daytona Handlebars, Galfer SS Brake Lines
    Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
    K+N Air Filter

    88 Voyager XII
    81 XJ650 Maxim

    Comment

    • #3
      Originally posted by Tat2demon View Post
      Forgot the pic.
      link at bottom of thread.......
      81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

      Comment

      • #4
        Yep just noticed that :P

        That the air jet from the air intake side?
        Nate

        78 XS11 "Matilda" 2H7 000364

        2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
        Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
        Shinko 712s, HID Headlight, RC Performance Exhaust
        Bikemaster Daytona Handlebars, Galfer SS Brake Lines
        Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
        K+N Air Filter

        88 Voyager XII
        81 XJ650 Maxim

        Comment

        • #5
          Looks like an orifice or some, not a carb part. I've never seen this part... sorry I cant help much.
          '79 XS11 F
          Stock except K&N

          '79 XS11 SF
          Stock, no title.

          '84 Chevy K-10 "Big Blue"
          GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

          "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

          Comment

          • #6
            A ruler or something next to it for scale would have been helpful?

            IT has a central hole like a jet, but not the full head like most of the jets on our carbs. So...even though it has a central hole, it may not be a necessary function? It almost looks like a set screw...like on the carb choke rod??

            Good luck!?
            T.C.
            T. C. Gresham
            81SH "Godzilla" . . .1179cc super-rat.
            79SF "The Teacher" . . .basket case!
            History shows again and again,
            How nature points out the folly of men!

            Comment

            • #7
              That looks like a restrictor of some sort; could this have been screwed into a oil passage somewhere?
              Fast, Cheap, Reliable... Pick any two

              '78E original owner - resto project
              '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
              '82 XJ rebuild project
              '80SG restified, red SOLD
              '79F parts...
              '81H more parts...

              Other current bikes:
              '93 XL1200 Anniversary Sportster 85RWHP
              '86 XL883/1200 Chopper
              '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
              Cage: '13 Mustang GT/CS with a few 'custom' touches
              Yep, can't leave nuthin' alone...

              Comment

              • #8
                Originally posted by crazy steve View Post
                That looks like a restrictor of some sort; could this have been screwed into a oil passage somewhere?
                Thats what I thought too, carb jets would be brass and these look like steel...
                '79 XS11 F
                Stock except K&N

                '79 XS11 SF
                Stock, no title.

                '84 Chevy K-10 "Big Blue"
                GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

                "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

                Comment

                • #9
                  I agree scale would be helpful. If those were in the carbs, as there are four identicle parts, then I am wondering if some PO used those instead of the right plugs in the early model carbs, or if they were in the mixture screw holes perhaps?? Obvously complete guesses. And yes I see he has an 81, but we all know how carbs get swapped on these bikes.
                  Life is what happens while your planning everything else!

                  When your work speaks for itself, don't interrupt.

                  81 XS1100 Special - Humpty Dumpty
                  80 XS1100 Special - Project Resurrection


                  Previously owned
                  93 GSX600F
                  80 XS1100 Special - Ruby
                  81 XS1100 Special
                  81 CB750 C
                  80 CB750 C
                  78 XS750

                  Comment

                  • #10
                    I've had a few of these motors apart.. and have never seen that part, so if it's actually from this 1100 motor, it's a new one on me.

                    Is this 4 screws.. or just one taken from different views like I had thought?
                    Try your hardest to be the kind of person your dog thinks you are.

                    You can live to be 100, as long as you give up everything that would make you want to live to be 100!

                    Current bikes:
                    '06 Suzuki DR650
                    *'82 XJ1100 with the 1179 kit. "Mad Maxim"
                    '82 XJ1100 Completely stock fixer-upper
                    '82 XJ1100 Bagger fixer-upper
                    '82 XJ1100 Motor/frame and lots of boxes of parts
                    '82 XJ1100 Parts bike
                    '81 XS1100 Special
                    '81 YZ250
                    '80 XS850 Special
                    '80 XR100
                    *Crashed/Totalled, still own

                    Comment

                    • #11
                      those go to the carbs. I just tore mine down and they go on were the floats are. dont remove the floats. it is next to the other flat head screw that is there. Make sure that they are clear and clean they look a little dirty. But I am 100% sure that those go to the carbs cause I dealt with them yesterday. I dont know the name of them. Again those go to the carbs. If you take off the bottoms of the carbs you will see right in the middle were they screw in cause it will have another screw that screws in adjacent above them that is a flat head. Takes about 10 minutes to do all 4
                      79 SF

                      Wow, did I just give advice? should I be doing that?

                      1983 GL1100 bored to a 1300 sold
                      1976cb750 project gifted to brother
                      1979 xs1100s currently working on

                      Wanting to have that head turner that makes people shut up!

                      Comment

                      • #12
                        Originally posted by WMarshy View Post
                        Thats what I thought too, carb jets would be brass and these look like steel...
                        WMarshy those are just really dirty. lol. if you look close you can see brass. Man I almost lost mine yesterday so they are real familiar to me. ahahahaha
                        hahaha
                        79 SF

                        Wow, did I just give advice? should I be doing that?

                        1983 GL1100 bored to a 1300 sold
                        1976cb750 project gifted to brother
                        1979 xs1100s currently working on

                        Wanting to have that head turner that makes people shut up!

                        Comment

                        • #13
                          As Steve said, a restricter of some sort. Definitely not a jet of any sort.......sorry dondons.
                          81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                          Comment

                          • #14
                            They look like oil jets, similar to those on the FJ, that spray oil onto the crankshaft bearings. They are screwed into the lower crankcase. JAT.
                            Here's one from an FJ.

                            Comment

                            • #15
                              Possibly part number 13 in this diagram.
                              http://www.cmsnl.com/yamaha-xs1100sh...8.html#results
                              More info.
                              http://www.cmsnl.com/yamaha-xs1100sh...-1_2h71513800/

                              Comment

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