Mikuni 34mm carbs on a cb450?
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Mikuni 34mm carbs on a cb450?

This is a discussion on Mikuni 34mm carbs on a cb450? within the Technical forums, part of the Caferacer.net Forums category; I found a set of mikunis that appear to be 34mm (they measure very close to 33-34mm, according to the guy selling them). He says ...

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  1. #1
    Administrator borzwazie's Avatar
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    Mikuni 34mm carbs on a cb450?

    I found a set of mikunis that appear to be 34mm (they measure very close to 33-34mm, according to the guy selling them). He says they were working ok, so I am going to take a look at them.

    They're very similar to this:



    and they came off a 4-stroke bike. I know I'll have to re-jet them, but am I just tossing money away even if they're in good shape? I looked for Mikuni 33mm carbs for comparison, and the only ones I saw were radically different, so I'm pretty sure they're just older 34mm carbs.
    "This site is bullshit."

  2. #2
    Senior Member UngaWunga's Avatar
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    Too big for that bike. Go 32mm max.
    Do a search for my old posts on what jetting works with 32mm Minuni round slides on a 450.





  3. #3
    Senior Member Diamondj's Avatar
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    Borzwazie,

    Measure the engine side of the carb with a digital vernier caliper. If it's a 34 it will actually be slightly larger than 34mm at the very edge - usually 34.45mm or so. 33's and 32's will be the same way - slightly larger at the very edge of the engine side of the carb.

    I'm looking for a set of 34's for a T500 and I have a set of clean 32's to trade if you get these and they are too big....

    Let me know if you are interested...

    Jim


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  5. #4
    Administrator borzwazie's Avatar
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    I didn't get them, but they're on Pittsburgh Craigslist right now - $75 bucks.

    Shoot me an email if you want to sell those Mikunis.

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