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  • Carb ID

    How do I know what carbs I have? I can't find a number on them. On the one side it has MIC, and on the other side it says MIC MIKUNI KOGYO. I can't find anythinhg else on them. I had them ported, polished and benchflowed now that they are in peices I have the carb kits (APCO) 11-Y3084K for a yamaha XS1100' 79. I just can't find a number on them. Thaks for any replys.
    79 XS11

  • #2
    Look at the idle mixture screws. If they are exposed, you have the early type (BS-34 II) carbs. If the idle mixture screws are down in a tunnel, then you have the later (BS-34 III) carbs. HTH
    2H7 (79) owned since '89
    3H3 owned since '06

    "If it ain't broke, modify it"

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    • #3
      It looks like I have the 34-IIs. Thanks
      79 XS11

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      • #4
        Originally posted by rappin View Post
        I have the carb kits (APCO) 11-Y3084K for a yamaha XS1100' 79.
        Looks like you have the right carb kits then. Float level should be 25.7 mm with carbs upside down on bench.
        2H7 (79) owned since '89
        3H3 owned since '06

        "If it ain't broke, modify it"

        Comment

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