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    Carb identification

    I know you guys on here are real good but I want to push you a little. I have a 1980 GS850L that was having carb trouble. I happen to stop buy a Motorcycle salvage heaven and found what I thought where identical (already pulled off.) Looks like someone just rebuilt them because I couldn't believe the shape. Make a long story short they don't fit. The linkage is a little shorter so it won't match up with the intake and airbox. I got my bike running and would like to sell these to someone on here or Ebay that needs a nice set (diaphrams look perfect) and everything moves. I want to know what they are off from (size at least and maybe year.) I'm assuming it's a GS, they are Mikuni, 32mm and a "D" is stamped on the bottom of all the bowls. Pictures attached.
    Last edited by Guest; 10-21-2008, 07:46 PM.

    #2
    another pic

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      #3
      3rd pic attached

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        #4
        last pic attached, any ideas?

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          #5
          Just a guess because the center carbs are real close either a 650 or 550
          do you know what jets are in it ??? Check & compare it to the carb jetting list

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            #6
            Measure the intake side throat with a caliper. I bet they measure 34mm. Your carbs are 32mm.
            1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
            1985 GS1150ES stock with 85 Red E bodywork.

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              #7
              Sqdancer: Main jet is a 92.5. Pilot Jet is a #40. I'll work Thursday night is checking all the rest. Is there any thing else I can check to help identify?

              Chef: 32mm for sure. I measured when I bought them and knew that that part matched. That's why I'm confused on what they are for. My father as an 82 GS650L and his look to be even smaller, like 28 or so. The way the choke assembly works I'm guessing it's from a 80 or 81 something. Possibly 750?
              Last edited by Guest; 10-21-2008, 08:27 PM.

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                #8
                What are you looking to get for them?
                1986 GS1150ES "JUNO QUICK”
                1984 GS1100GK
                1982 GS1100E “RANGER”
                1978 GS750E-"JUNO RIOT" on the road in 2013
                1980 GS550GL complete, original, 4900 miles

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                  #9
                  It is from an 80-81. They changed the choke actuator for the 82-83.
                  1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                  1985 GS1150ES stock with 85 Red E bodywork.

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                    #10
                    Chef, that is what I was thinking was an 80-81. I'm going to take apart on Thurs. and get all the numbers from the jets. Hopefully that will me the tell what they are.

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                      #11
                      You can swap the linkage from the stock carbs.
                      1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                      1985 GS1150ES stock with 85 Red E bodywork.

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                        #12
                        They look just like the ones I had on a previous '81 GS 850G.
                        Larry

                        '79 GS 1000E
                        '93 Honda ST 1100 SOLD-- now residing in Arizona.
                        '18 Triumph Tiger 800 (gone too soon)
                        '19 Triumph Tiger 800 Christmas 2018 to me from me.
                        '01 BMW R1100RL project purchased from a friend, now for sale.

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                          #13
                          Chef, I was going to do that but getting the butterfly out looked to much for my skills and tools. Then if I did successfully drill out the stamped screws how would you go about getting them stamped to stay in place again?

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                            #14
                            I was referring to the choke and throttle linkage attached to the top of the carbs. I would not swap out the butterflies.
                            Now I'm confused on what didn't fit.
                            1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                            1985 GS1150ES stock with 85 Red E bodywork.

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                              #15
                              I attempted to put the carbs back together and realized they needed to be farther apart. Not a problem so I used my rails to hold them together, and changed a few other things. I checked the throttle and what happened was 3,4 four move and 1,2 moved but not all together. That's the linkage I was refering to. The link between the two in the middle wasn't long enough. Make sense, I didn't explain that the best.

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