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Fuel air mixture screws

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  • Fuel air mixture screws

    I am re-jetting my carbs and was wondering how many turns out I need the fuel-air mixture screw. The jets I'm putting in are 147.5 mains and 45 pilots. Is there any other things I have to change? Float settings maybe? This is my first time so please bear with me.. Thanks
    '79 XS Eleven Special
    Kirker 4-1 exhaust
    Individual Pod filters
    Cafe Racer Fairing
    LED turn and brake lights
    LED underglow

  • #2
    Think of it this way, the mixture screws start out at 1-1/2 to 2 turns out for stock jetting (different pepople start at diff points, its just a starting point to get you running so you can tune). Obviously, you changed exhaust and or moved to POD filters, and are rejetting to compensate. Well, your rejetting so the conditions are closer to stock with that equipment. So, the starting point should be same as stock.
    Life is what happens while your planning everything else!

    When your work speaks for itself, don't interrupt.

    81 XS1100 Special - Humpty Dumpty
    80 XS1100 Special - Project Resurrection


    Previously owned
    93 GSX600F
    80 XS1100 Special - Ruby
    81 XS1100 Special
    81 CB750 C
    80 CB750 C
    78 XS750

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    • #3
      Mine are at 1 1/2

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