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  1. #1

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    Question 38mm vs 40mm Keihin carbs

    Since both of these carbs taper to 35mm at their venturis, are there any flow advantages of the 40s compared to the 38s?


  2. #2
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    38's taper to smaller than 35 i believe its 33mm.seems like the genesis 40 carbs taper to 33 as well.and which set of 38's are you referring to?

  3. #3

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    Hmmm... according to this thread (see post #5) >> http://www.greenhulk.net/forums/showthread.php?t=15431 ... says SLX, SLX Pro, and Virage 1200s all use 40mm with 35mm venturi, while the Genesis uses a 40mm with 31mm venturi.

    And this thread talks about 38s with 35mm venturis >> http://www.pwctoday.com/showthread.php?t=37701

    And then this thread shows 38s with either 32mm or 34mm venturis >> http://www.pwctoday.com/showthread.php?t=40732

    ...im confused
    Last edited by Spades; 11-05-2014 at 10:09 AM.

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