Carb Replacement, Alternative Carbs, Different Carbs, Carb Options, Fuel Injection

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  • Shuriken
    XS-XJ Guru
    • Jul 2002
    • 1093
    • Southwest USA

    #1

    Carb Replacement, Alternative Carbs, Different Carbs, Carb Options, Fuel Injection

    Carb Replacement, Alternative Carbs, Different Carbs, Carb Options, Fuel Injection, Modern Carbs

    Sometimes I have trouble keeping track of all the different threads. This is just a collection of existing information, but hopefully this list can be expanded and reposted over time.

    XS11.COM Search Results

    --------------------------

    Suzuki GSXR750 Carbs Mikuni




    36 mm carbs from an FJ 1100-1200 Yamaha


    ZRX11 36mm keihins


    Suzuki 1100 carbs
    http://www.xs11.com/forum/showthread...dern+AND+carbs

    MegaSquirt FI

    http://www.xs11.com/forum/showthread...fuel+injection

    MicroSquirt FI
    http://www.xs11.com/forum/showthread...fuel+injection

    XJR Carbs
    http://www.xs11.com/forum/showthread...fuel+injection

    83 GPZ 1100 fuel injection
    http://www.xs11.com/forum/showthread...fuel+injection

    Motorcyclecarbs.com - Replacement Carbs
    http://www.motorcyclecarbs.com/CARBU...XJ_F_P9151.cfm
    http://www.motorcyclecarbs.com/CARBU...100__P9194.cfm
    http://www.motorcyclecarbs.com/CARBU...100__P9200.cfm
    1985 Yamaha VMX12n "Max X" - Stock
    1982 Honda XL500r "Big Red" - Stump Puller. Unknown mileage.
    1974-78 Honda XL350 hybrid - The thumper that revs. Unknown miles.
    1974 Suzuki TC/TS125 hybrid. Trials with trail gear. Invaluable. Unknown miles.
    1971 Honda CL350. For Dad. Newtronic Electronic Ign. Reliable. Unknown miles.

    Formerly:
    1982 XS650
    1980 XS1100g
    1979 XS1100sf
    1978 XS1100e donor
  • Shappers
    Truly XSive
    • Sep 2006
    • 158
    • Helsinki, Finland

    #2
    Great idea Ben,

    Here is another link from the UK site

    Megasquirt (Mini-MS) FI
    http://www.benefiscal.co.uk/forum/index.php?topic=988.0
    '84 Sport

    Comment

    • pggg
      XS-XJ Guru
      • Nov 2004
      • 1609
      • NZ

      #3
      I've heard that fancy F.I. /bigger/better carbs etc.. won't do much for an XS11 as far as performance goes.

      Comment

      • petejw
        XS-XJ Guru
        • May 2005
        • 2269
        • sydney australia

        #4
        nice work ben,
        in the process of sussing all this stuff out.
        pete


        new owner of
        08 gen2 hayabusa


        former owner
        1981 xs1100 RH (aus) (5N5)
        zrx carbs
        18mm float height
        145 main jets
        38 pilots
        slide needle shimmed .5mm washer
        fitted with v/stax and uni pod filters

        [url]http://www.youtube.com/watch?v=3pA8dwxmAVA&feature=mfu_in_order&list=UL[/url]

        Comment

        • pggg
          XS-XJ Guru
          • Nov 2004
          • 1609
          • NZ

          #5
          Here's a few, those yoshi carbs look tempting

          http://www.trademe.co.nz/Trade-Me-Mo...256810.htm?p=1


          http://www.trademe.co.nz/Trade-Me-Mo...281149.htm?p=2


          http://www.trademe.co.nz/Trade-Me-Mo...113285.htm?p=3

          http://www.trademe.co.nz/Trade-Me-Mo...569840.htm?p=5

          http://www.trademe.co.nz/Trade-Me-Mo...54747.htm?p=13

          Comment

          • petejw
            XS-XJ Guru
            • May 2005
            • 2269
            • sydney australia

            #6
            hey pggg, those yoshi carbs look awsome,
            sum of those other carbs are looking a bit pricey tho.

            ive found that the ninjas 900/1000 have very
            similar spacing between carbs as that of the xs
            theyre 77 - 85 - 77 but are 38mm carbs
            would 38mm fit into our rubber manifolds?
            and not sure if they would fit under the tank as well.
            pete


            new owner of
            08 gen2 hayabusa


            former owner
            1981 xs1100 RH (aus) (5N5)
            zrx carbs
            18mm float height
            145 main jets
            38 pilots
            slide needle shimmed .5mm washer
            fitted with v/stax and uni pod filters

            [url]http://www.youtube.com/watch?v=3pA8dwxmAVA&feature=mfu_in_order&list=UL[/url]

            Comment

            • pggg
              XS-XJ Guru
              • Nov 2004
              • 1609
              • NZ

              #7
              pete 77-85-77 would fit easily and the larger diameter carbs still slide into the XS manifolds, they're 37mm carbs with an XS manifold in this pic, the manifolds are easy to shape with a dremel to ease over tight fitting, but the ninja carbs are downdraft or sidedraft? These ones are 2002 R6 downdrafts, I'm pretty sure they'd work as sidedraft because of their float bowl shape but can't say for sure as I haven't tried them, the ZRX carbs I used were pretty much a similar carb, but sidedraft and with a better spacing to fit the XS, those R6 downdrafts need custom manifolds to fit the XS as they're spaced a compact 73-73-73

              Comment

              • petejw
                XS-XJ Guru
                • May 2005
                • 2269
                • sydney australia

                #8
                not sure pggg if the ninja carbs are side draft or downdraft,
                havent actually seen the carbs themselves, was looking
                at this pro flo site,

                http://www.pro-flo.com/proflo_mikuni...its.htm#SUZUKI

                so i figured there side draft cause of the mikuni kits available
                for them, and the spacing of these carbs are a better fit
                than the suzuki ones, ill try and suss out a few local
                wreckers and check them out.
                pete


                new owner of
                08 gen2 hayabusa


                former owner
                1981 xs1100 RH (aus) (5N5)
                zrx carbs
                18mm float height
                145 main jets
                38 pilots
                slide needle shimmed .5mm washer
                fitted with v/stax and uni pod filters

                [url]http://www.youtube.com/watch?v=3pA8dwxmAVA&feature=mfu_in_order&list=UL[/url]

                Comment

                • pggg
                  XS-XJ Guru
                  • Nov 2004
                  • 1609
                  • NZ

                  #9
                  Pretty sure most ninja carbs are downdraft like those R6 carbs, they're really semi-downdraft, they dont sit vertical but sort of 1/2 way between sidedraft and full downdraft, the earlier 900's had sidedraft carbs though, I reckon there's a good chance those semi-downdraft type will work as sidedraft, but can't find much info on the net about it, more a case of 'doing and seeing' to really find out

                  Comment

                  • Shuriken
                    XS-XJ Guru
                    • Jul 2002
                    • 1093
                    • Southwest USA

                    #10
                    I was going through boxes in my garage and found a set of FJ1100-1200 carbs. I got them on ebay years ago at about the same time I got the Kawi ZRX carbs. I put the ZRX carbs on the 11 and they ran so well that I boxed up and ignored the FJ carbs.

                    Anybody want/need a set of FJ carbs?
                    1985 Yamaha VMX12n "Max X" - Stock
                    1982 Honda XL500r "Big Red" - Stump Puller. Unknown mileage.
                    1974-78 Honda XL350 hybrid - The thumper that revs. Unknown miles.
                    1974 Suzuki TC/TS125 hybrid. Trials with trail gear. Invaluable. Unknown miles.
                    1971 Honda CL350. For Dad. Newtronic Electronic Ign. Reliable. Unknown miles.

                    Formerly:
                    1982 XS650
                    1980 XS1100g
                    1979 XS1100sf
                    1978 XS1100e donor

                    Comment

                    • Shuriken
                      XS-XJ Guru
                      • Jul 2002
                      • 1093
                      • Southwest USA

                      #11
                      Still have the carbs if anyone is interested.
                      1985 Yamaha VMX12n "Max X" - Stock
                      1982 Honda XL500r "Big Red" - Stump Puller. Unknown mileage.
                      1974-78 Honda XL350 hybrid - The thumper that revs. Unknown miles.
                      1974 Suzuki TC/TS125 hybrid. Trials with trail gear. Invaluable. Unknown miles.
                      1971 Honda CL350. For Dad. Newtronic Electronic Ign. Reliable. Unknown miles.

                      Formerly:
                      1982 XS650
                      1980 XS1100g
                      1979 XS1100sf
                      1978 XS1100e donor

                      Comment

                      • Shuriken
                        XS-XJ Guru
                        • Jul 2002
                        • 1093
                        • Southwest USA

                        #12
                        http://www.xs11.com/forum/showthread.php?t=15870

                        Just linking to another, older carb thread.
                        1985 Yamaha VMX12n "Max X" - Stock
                        1982 Honda XL500r "Big Red" - Stump Puller. Unknown mileage.
                        1974-78 Honda XL350 hybrid - The thumper that revs. Unknown miles.
                        1974 Suzuki TC/TS125 hybrid. Trials with trail gear. Invaluable. Unknown miles.
                        1971 Honda CL350. For Dad. Newtronic Electronic Ign. Reliable. Unknown miles.

                        Formerly:
                        1982 XS650
                        1980 XS1100g
                        1979 XS1100sf
                        1978 XS1100e donor

                        Comment

                        • Shuriken
                          XS-XJ Guru
                          • Jul 2002
                          • 1093
                          • Southwest USA

                          #13
                          Originally posted by Shuriken
                          Still have the carbs if anyone is interested.
                          Carbs sold over the weekend to an FJ Owner.
                          1985 Yamaha VMX12n "Max X" - Stock
                          1982 Honda XL500r "Big Red" - Stump Puller. Unknown mileage.
                          1974-78 Honda XL350 hybrid - The thumper that revs. Unknown miles.
                          1974 Suzuki TC/TS125 hybrid. Trials with trail gear. Invaluable. Unknown miles.
                          1971 Honda CL350. For Dad. Newtronic Electronic Ign. Reliable. Unknown miles.

                          Formerly:
                          1982 XS650
                          1980 XS1100g
                          1979 XS1100sf
                          1978 XS1100e donor

                          Comment

                          • fredintoon
                            Master of XSology
                            • Mar 2004
                            • 6795
                            • Saskatoon SK

                            #14
                            Originally posted by pggg
                            I've heard that fancy F.I. /bigger/better carbs etc.. won't do much for an XS11 as far as performance goes.
                            Hi pggg,
                            you don't need more performance. The XS11 is TFFO as it is. What F.I. will do is save you from chronic carb cleaning and give better fuel consumption.
                            Fred Hill, S'toon
                            XS11SG with Spirit of America sidecar
                            "The Flying Pumpkin"

                            Comment

                            • 81xsproject
                              XS-XJ Super Guru
                              • Nov 2004
                              • 3185
                              • Fortuna, CA

                              #15
                              Not to mention better low end if you're not all stock.
                              '81 XS1100 SH

                              Melted to the ground during The Valley Fire

                              Sep. 12th 2015

                              RIP

                              Comment

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