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  • #16
    I'll check HVC for that piston. That's why I haven't taken my carbs off yet-small, tiny stuff like the detent ball and spring on the choke. I don't have a garage nor workbench to set all the stuff on to keep track of.
    Not sure if my carbs have them but isn't there a small screen behind one of the jets? All I really want to do is blow some compressed air through all the ports to clear them with maybe a little carb spray...it's mainly a test I want to put myself through to become more familiar with all the workings on what makes the bike run. Thanks all for the advice! I have a boiler at work calling my name...
    79 SF
    Raptor Auto CCT, octopus-less, tapped/plugged fuelcock prime ports, new shorter handlebars, original stock Yamaha seat (w/ Octo routing diagram), looking for stock grab-bar/sissybar/backrest.

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    • #17
      There's actually supposed to be two detent balls/springs; one at #1 and one at #4. Yamaha wants almost $10 each for just the springs, if you need a set I can supply all four parts for $5. If interested, send me a PM....
      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

      • #18
        Originally posted by jrm000kc View Post
        That's why I haven't taken my carbs off yet-small, tiny stuff like the detent ball and spring on the choke. I don't have a garage nor workbench to set all the stuff on to keep track of.
        That's what the dining roomtable is for

        Seriously though, I have an old card table stashed just for such purposes:



        The towel is so the little parts don't runaway
        1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
        1979 XS1100SF (stock-euro mods planned)
        1984 XV700L Virago (to be hot-modded)
        1983 XJ750MK Midnight Maxim (semi-restored DD)
        1977 XS650D ( patiently awaiting resto)

        Sometimes it takes a whole tank of gas before you can think straight.

        Comment

        • #19
          LOL, I did the ones for the E I sold on the coffee table. It was too cold in the garage.
          Greg

          Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

          ― Albert Einstein

          80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

          The list changes.

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          • #20
            Yikes is all I can say at that mess on the table...looks like a buttload of fun...

            Greg, I wanted to be sure about that rear caliper piston size. Is it the same size as the front or is it different because HVC cycle is showing two different ones. The different dimensions I'm seeing are:42.8mmOD x 33.05mm tall and 38mmOD x 41.25mm tall. Didn't know if my '79 Special was different or not but I want to be sure before ordering. Thanks!
            79 SF
            Raptor Auto CCT, octopus-less, tapped/plugged fuelcock prime ports, new shorter handlebars, original stock Yamaha seat (w/ Octo routing diagram), looking for stock grab-bar/sissybar/backrest.

            Comment

            • #21
              I just went out and measured one to be certain because I was getting conflicting info also. It's the second one, http://www.ebay.com/itm/YAMAHA-XS360...75ba02&vxp=mtr
              Greg

              Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

              ― Albert Einstein

              80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

              The list changes.

              Comment

              • #22
                Thank you so much Greg! For a second I thought I'd ordered the wrong one but after going through some older threads it looks like the pistons are all the same on the XS series. The only different one was the '81 Midnight Special.
                Hope it gets here before the weekend since I paid freaking $11 shipping! Almost had cardiac failure when I saw the shipping charge but then realized Obamacare is law now and I'd rather risk it than go to a witch doctor. You pay more for shipping these days than the damn part you order most of the time. At least it wasn't a $1 part or something stupid like that. Wish I could hook up a CNC machine to my computer and tell it to make me the parts I look at online.
                You're awesome going out and actually measuring a piston on my behalf...once again, thanks my friend.
                79 SF
                Raptor Auto CCT, octopus-less, tapped/plugged fuelcock prime ports, new shorter handlebars, original stock Yamaha seat (w/ Octo routing diagram), looking for stock grab-bar/sissybar/backrest.

                Comment

                • #23
                  Originally posted by crazy steve View Post
                  There's actually supposed to be two detent balls/springs; one at #1 and one at #4. Yamaha wants almost $10 each for just the springs, if you need a set I can supply all four parts for $5. If interested, send me a PM....
                  could I buy a spring and ball please?
                  XS1100F 1980 European model. Standard. Dyna coils. Iridium plugs. XS750 final drive (sometimes). Micron fork brace. Progressive front springs. Geezer regulator/rectifier. Stainless 4 into 2 exhaust. Auto CCT (Venturer 1300) SOLD. New project now on the go. 1980 European model.

                  Comment

                  • #24
                    Originally posted by crazy steve View Post
                    There's actually supposed to be two detent balls/springs; one at #1 and one at #4. Yamaha wants almost $10 each for just the springs, if you need a set I can supply all four parts for $5. If interested, send me a PM....
                    Interestingly, only the one at the #1 position is used. If you look at the enrichment circuit rod it only has detents for the ball to ride in at the #1end, none at the #4 end.
                    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

                    • #25
                      Originally posted by DGXSER View Post
                      Interestingly, only the one at the #1 position is used. If you look at the enrichment circuit rod it only has detents for the ball to ride in at the #1end, none at the #4 end.
                      Mine has detents at both ends.
                      Nathan
                      KD9ARL

                      μολὼν λαβέ

                      1978 XS1100E
                      K&N Filter
                      #45 pilot Jet, #137.5 Main Jet
                      OEM Exhaust
                      ATK Fork Brace
                      LED Dash lights
                      Ammeter, Oil Pressure, Oil Temp, and Volt Meters
                      Green Monster Coils
                      SS Brake Lines
                      Vision 550 Auto Tensioner

                      In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                      Theodore Roosevelt

                      Comment

                      • #26
                        Steve,
                        I could use that set of springs and detent balls for a set of carbs I have that are missing them. If Jim is still interested and wants to split your set,I would be fine with one spring and ball then. Thanks, Bob

                        Comment

                        • #27
                          Got my caliper piston in the mail today...thought about doing it now until I went back outside and the wind had changed dropping the temp. 70 and balmy all day at work but can't have that when I want to do something. Good 'ol bipolar Missouri weather...
                          79 SF
                          Raptor Auto CCT, octopus-less, tapped/plugged fuelcock prime ports, new shorter handlebars, original stock Yamaha seat (w/ Octo routing diagram), looking for stock grab-bar/sissybar/backrest.

                          Comment

                          • #28
                            Originally posted by jrm000kc View Post
                            All I really want to do is blow some compressed air through all the ports to clear them with maybe a little carb spray...
                            Don't do it...the compressed air part... while your carbs are still together is a good/bad way to squish your brass floats! You will at least want to take the bowls off and the floats out before putting any pressurized air into the orifices!

                            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

                            • #29
                              Originally posted by Schming View Post
                              That's what the dining roomtable is for

                              The towel is so the little parts don't runaway
                              The towel is a Great Idea Schming
                              1981 XS1100 H Venturer ( Addie)
                              1983 XJ 650 Maxim
                              2004 Kawasaki Concours. ( Black Bear)

                              Comment

                              • #30
                                Originally posted by natemoen View Post
                                Mine has detents at both ends.
                                Hmm, I will have another look at my early carbs. All of the late model sets I have only have the detents for the spring and ball to latch into on the number one carb end.
                                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

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