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Carb OEM specs as per factory manuals

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    #31
    Ryan,

    I PM'd you the specs from my 76-79 GS750 factory service manual. This manual is not near as thorough as the 80's models though. I hope the info is enough.

    -jon
    16 KTM 1290 Super Duke GT with 175hp stock, no upgrades required...
    13 Yamaha WR450 with FMF pipe, Baja Designs street legal kit
    78 GS750E finely tuned with:

    78 KZ1000 in pieces with:
    Rust, new ignition, burnt valves and CLEAN carbs!

    History book:
    02 GSF1200S Bandit (it was awesome)
    12 Aprilia Shiver 750
    82 GS1100G

    83 Kaw 440LTD

    Comment


      #32
      Here's the carb info for my bikes - not sure where to get some of the info, like bypass, pilot outlet, etc. I can't find it anywhere in the owners manuals or factory service manuals. If someone can tell me where to look, I can dig it up.

      1978 GS750E

      Specs in mm.
      Carb Type- Mikuni VM26SS
      Bore Size- 26
      ID# - 45030
      Idle r/min - 1050 +/- 50
      Fuel Level - 2.5-3.5
      Float Height - 25-27 mm
      Main Jet - #100
      Main Air Jet - 0.7
      Jet Needle - 5F21-3
      Needle Jet - O-6
      Pilot Jet - #15
      Bypass -
      Pilot Outlet -
      Valve Seat -
      Starter Jet -
      Pilot Screw -
      Pilot air jet - 1.6
      Throttle Cable Play - 0.5-1.0




      1977 GS400B

      Specs in mm.
      Carb Type- Mikuni BS34
      Bore Size- mm
      ID# - 44012
      Idle r/min - 1150 +/- 50
      Fuel Level - 6.5 +/-0.5 mm
      Float Height - 26.3+/-1 mm
      Main Jet - #112.5
      Main Air Jet - .06
      Jet Needle - 4F23-3
      Needle Jet - Y-0
      Pilot Jet - 22.5 (another place in the same manual lists #20)
      Bypass -
      Pilot Outlet -
      Valve Seat -
      Starter Jet -
      Pilot Screw -
      Pilot Air Jet - 1.5 (another place in the same manual lists 1.4)
      Throttle Cable Play - 1.0-1.5

      Comment


        #33
        i'm waking this up agian,

        hey guys lets not stop now, i am pretty sure all we need right now is some pre 1983 gs750 carb info (CV)

        some 82-83 gs 1100 g and other similar models.

        and the gs1150 carb info.

        dig out your books and manuels and lets get this wrapped up so we have a complete list.

        thanks,
        78 GS1000 Yosh replica racer project
        82 Kat 1000 Project
        05 CRF450x
        10 990 ADV-R The big dirt bike

        P.S I don't check PM to often, email me if you need me.

        Comment


          #34
          84 GS1150

          Type----------------- Mikuni BS36SS
          I.D. NO. -------------00A10
          Bore -----------------36mm
          Idle r/min----------- 1100+or- 100r/min
          Fuel level------------ 3.0 +- 0.5 mm
          Float height---------- 21.4 +- 1.0 mm
          Main jet ------------- #120(nos.1&4),#122.5(nos 2&3)
          jet needle------------ 5D14
          Needle jet ----------- X-3
          Pilot jet ---------------#45
          By pass--------------- 0.9,0.8,0.9 mm
          pilot outlet------------ 0.9 mm
          Valve seat------------ 2.0 mm
          Starter jet------------ #32.5
          Pilot screw------------ PRE-SET (2 turns back)
          Throttle valve--------- #130
          pilot air jet------------- #125
          Throttle cable play-----2-3 mm
          choke cable play-------0.5-1.0 mm

          Comment


            #35
            I have an '82 850GZ. I have the factory Suzuki manual and I will post the carb specs. for my bike tomorrow. Have you guys decided if there will be a dedicated page on thegsresources.com for this info.?

            Mike

            Comment


              #36
              not really this topic has been lurking for a long time i guess one of us needs to get off our ass and put this info in a excel or word document then pdf it so it can move over to the garage. i think we now have all the models covered.


              -ryan
              78 GS1000 Yosh replica racer project
              82 Kat 1000 Project
              05 CRF450x
              10 990 ADV-R The big dirt bike

              P.S I don't check PM to often, email me if you need me.

              Comment


                #37
                You guys rock. Ryan, thx for taking ownership of this and making it happen.

                Comment


                  #38
                  Here 'ya go, Ryan. Thanks Man.

                  Mike

                  1982 GS850GZ Carb. Specs.

                  mm (in.)

                  Carb. type: Mikuni BS32SS
                  Bore size: 32 (1.26)
                  I.D. no. 45160*
                  Idle rpm/min 1050 +- 100 rpm
                  Fuel Level 5.0 +- 0.5 (0.2 +- 0.02)
                  Float height 22.4 +- 1.0 (0.88 +- 0.04)
                  Main Jet #115
                  Main air jet 1.7
                  Jet needle 5D50
                  Needle jet X-5
                  Pilot jet #40
                  By pass 1.0, 0.8, 0.8
                  Pilot outlet 0.7
                  Valve seat 2.0
                  Starter jet #32.5
                  Pilot screw pre-set (well.....maybe)
                  Pilot air jet #180*
                  Throttle cable play 0.5-1.0 (0.02-0.04)
                  Choke cable play 0.5-1.0 (0.02-0.04)

                  *New Z model spec.

                  Comment


                    #39
                    Ryan, do you have the 82-83 1100 info? if not I can try to post it tonight, I have the factory service manuel that covers the G, GL, GK for those years.

                    Comment


                      #40
                      ok guys my brain hurts, i am trying to get all these carbs we have sorted out and in some sort of standard format

                      i think w have most of the bikes listed but we still need a few more, some of the ones i know for sure are the 82 -83 1100 g series bikes
                      as well as the gs 300 carb specs, the gs 125? carb specs the gs 250 carb specs? the 77-78 gs 400 carb specs, the 80-82 gs 400 specs, and the 83 specs. those are the few i can think of right now. as well as some verification of the info that i have compiled and filling in of some missing blanks.

                      it is going to take me a little time to be able to sort all this stuff out and put it in some sort of standard format. i have so far got stuff listed up to the gs 1000's but nothing is in a standard format yet.

                      after we get these oem carb setting set maybe we can start loging some KNOWN GOOD settings for bikes with modified carbs like people useing gsxr carbs with what motor and what mods. maybe in the next cople months i can list my settings for the 29mm smoothies i have on my 1000 i am working on.

                      if any one wants to add info please follow the two types of formats


                      Form to use for CV type carbs


                      GS xxxxx
                      1980- xx
                      xxx Model

                      Carb ???????. xxxxx (4 separate carbs)
                      bore size ?????. xxmm (xxxx)
                      id no ???????. xxxx
                      idle r/min???.... xxx r/min
                      fuel level ?????. xxxmm +/- 0.5 (0.xx +/- 0.xx)
                      float height ???? xxxmm +/- 1.0 (0.xx +/- 0.xx)
                      Main jet??????. xxxx
                      Main Air jet????? xxxx
                      jet needle?????.. xxxx
                      Needle Jet?????? xxxx
                      Pilot Jet??..????. xxxx
                      By-pass?.?????? xxxx
                      Pilot Outlet?????? xxxx
                      Valve seat?????? xxxx
                      Starter jet?????? xxxx
                      Pilot Screw............. xxxx
                      throttle cable play ?. xxxx



                      Form for VM style carbs

                      GS xxxx
                      197x - 7x
                      xx model

                      idle r/min???.... xxxx r/min
                      Carb ???????. Mikuni xxxx (4 separate carbs)
                      id no ???????. xxxx
                      bore size ?????. xxxxmm (x.x)
                      float height ???? xxmm +/- 1.0 (0.xx +/- 0.xx)
                      fuel level ?????. x.xmm +/- 1.0 (0.xx +/- 0.xx)
                      Air screw ?????.. xxxx
                      Cut away?????.. xxxx
                      jet needle?????.. xxxx-xrd notch from the top
                      Pilot Screw............ xxxx
                      Pilot Air Jet????? xxxx
                      Pilot Jet??..????. xxxx
                      Pilot Outlet????? xxxx
                      Needle Jet????.? xxxx
                      By-pass?.?????... xxxx
                      Main jet??????? xxxx
                      throttle cable play ?. 0.x-x.0 (0.xx-0.xx)

                      thanks for everyone participation

                      -ryan
                      78 GS1000 Yosh replica racer project
                      82 Kat 1000 Project
                      05 CRF450x
                      10 990 ADV-R The big dirt bike

                      P.S I don't check PM to often, email me if you need me.

                      Comment


                        #41
                        Ryan, here are the numbers for the 82/83 GS1100

                        GS 1100
                        1982-83
                        G, GL, GK Model

                        Carb ???????. Mikuni BS34SS (4 separate carbs)
                        bore size ?????. 34mm (1.34)
                        id no ???????. 49400
                        idle r/min???.... 1050 +/- 100 r/min
                        fuel level ?????. 5.0mm +/- 0.5 (0.20 +/- 0.02)
                        float height ???? 22.4mm +/- 1.0 (0.88 +/- 0.04)
                        Main jet??????. #115
                        Main Air jet????? 1.7
                        jet needle?????.. 5D58
                        Needle Jet?????? X - 3
                        Pilot Jet??..????. #40
                        By-pass?.?????? 0.9, 0.8, 0.8 (0.04, 0.03, 0.03)
                        Pilot Outlet?????? 0.7
                        Valve seat?????? 2.0
                        Starter jet?????? #50
                        Pilot Screw............. PRE-SET
                        Pilot Air Jet?????..#170
                        throttle cable play ?. 0.5 ? 1.0 (0.02, 0.04)
                        Choke Cable Play??. 0.5 ? 1.0 (0.02, 0.04)

                        Comment


                          #42
                          1986 GS450L carb specs

                          Does anyone have carb specs for a 1986 GS450L?

                          Comment


                            #43
                            I found this in my service manual.
                            It is for GS750 1976-1979 ,GS550 1977 - 1982



                            Check the Engine no. ,not frame no. Look for the differences on the same model!!!

                            I hope it will help

                            Comment


                              #44
                              Anybody have the pilot screw settings for an '83 GS550L? I was looking at the 550E post above, but my pilot screws were removed by a PO and I'd like to double check what he scribbled in the Haynes manual.

                              Thank!

                              Comment


                                #45
                                Originally posted by first timer
                                yeah man post your 650 info please try to use the format i have used

                                thanks
                                -ryan
                                Ryan,

                                Was looking through last night and realized I never did post the 650E information.

                                Here it is:




                                (as you can see it is different from the 650G(L) models posted earlier.

                                Amos

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