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Mystery 34mm CV Carbs

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    #1

    Mystery 34mm CV Carbs

    Mystery 34mm mikuni CV Carbs...
    anyone have an idea of what make/model/year these may have came on?
    these are on a j model 1100 kaw right now but are not original to the bike.
    the cover with the 3 screws kinda throws me???
    bike is not in my possesion so not much more info is available.
    thanks
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    #2
    Not sure what they go on, but I'm working on a guy's Yamaha Venture (those carbs set sideways) and those carbs have that on the side, it's enrichment valve, there is a small rubber diahpram and spring inside there. terrylee

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      #3
      Can you post up better picts?
      I have some parts from a 79 cb650.
      I thought they were Keihin though.
      Carbs look similar though.
      Will try and find.

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        #4
        I'm with Crankhtat,we need a better pic and from what I see in that one I'd guess Keihin to.

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          #5
          that's the only pic i have.
          they are on a bike for sale and the guy said 34mm mikuni CV's.
          i have not seen the bike in person and the owner said these was on the bike when he bought it.
          these are a rack of 4 and spaced for large GS/KZ model's.

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            #6
            I have a set of KZ1000J carbs that look like that. I believe its an anti-backfire valve that keeps it from back firing with the lean EPA jetting. Not posative but thats what Ive read on the KZ forum. The 3 sets of Suzuki carbs I have arent like that

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              #7
              Originally posted by Katarat View Post
              I have a set of KZ1000J carbs that look like that. I believe its an anti-backfire valve that keeps it from back firing with the lean EPA jetting. Not posative but thats what Ive read on the KZ forum. The 3 sets of Suzuki carbs I have arent like that
              hmmmm
              these are on a J model that has had the injection removed.
              so maybe these are kawi carbs from a non injected model.
              good info...thanks
              p.s.
              seller said they have a black choke knob where GS vacuums never had that option.

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                #8
                I think the name for the covered part is a cut off valve????

                Rubber diaphram with a rounded ball on the end. Spring between the cover and the diaphram center.
                Last edited by chuck hahn; 07-13-2013, 07:43 PM.
                MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

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                  #9
                  Youre right, they are called air cutoff valves and they are anti-backfire valves that tie into the pilot circuit

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                    #10
                    more info...
                    supposed to be C H I P carbs.
                    in person they look like kawi J model carbs with the thick aluminum vacuum slide covers.
                    they say mikuni on them and have K&N 2-1/4" offset oval filters.

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                      #11
                      Except for the 3 bolt diaphargm deal mine look like ordinary BS34 Mikuni CVs & are off a KZ1000J

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