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    Mikuni Main Jet drill size

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    • Member since
      April 2013
    Mikuni Main Jet drill size
    Posted by rotax809 on Wednesday, February 17, 2016 12:34 PM

    Can anyone help me out with the Mikuni main jet actual drill sizes?

    988 iantomasi triple with 45.5mm rounds, looking to start with around 600s, been searching for awhile for a chart of some sort with no luck.



    • Member since
      July 2005
    Posted by dyna-tek racing on Friday, March 4, 2016 9:00 AM

    mikuni main jets are measured in actuaal fluid flow not in orifice size, there may be some info on how those two pretain to each other but if the champfer going into the hole is not correct or the hole has a twist or is straight all effects the dynamics of the part

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