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Thread: Reverse jetting

  1. #1
    cheatin' piston popper addicted's Avatar
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    Reverse jetting

    Now that I have a set of tripples, I was doing some research into setting them up. I noticed in the instructions that SL posted on the PSI pipes, they recommend reverse jetting, where the pilots are bigger than the mains.

    Can anyone explain this to me?
    What are the benefits?
    Reasons?

    Thanks!


  2. #2
    MarkyMark's Avatar
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    Huh ? How can the pilots be bigger than the mains ?

  3. #3
    Moderator RX951's Avatar
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    Quote Originally Posted by MarkyMark
    Huh ? How can the pilots be bigger than the mains ?
    The Buckshot carbs on my GPR have reverse jetting.

    I run 132.5 pilots / 120 mains

  4. #4
    mine came factory 85 pilot 80 main! I didn't know that was goofy? but Know it 85- 90

  5. #5

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    Cool

    some big carb have poor low speed Signal so you have to have bigger hole to make it easy for more fuel
    Example
    go get two soda straws 1 big inside 1 small ,which one take less vacuum to draw!

    get it

    later cdpcb

  6. #6
    cheatin' piston popper addicted's Avatar
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    Now that makes sense!
    Thanks chip.

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