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  1. #1

    ADA 150 psi head on a zxi 1100 carb setting.

    I have a ZXI 1100 with flame arrestors on it. Everything else is stock. I'm putting on an ADA head with 150 psi domes. Will the stock carburetor handle it without jetting? Should I open up the low-speed and high-speed screws half a turn? Will half a turn be safe?


  2. #2
    Rodsatheart's Avatar
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    Your going to need to drop the pop off a tad with aftermarket flame arrestors on it. If it was me, I would go up 2 sizes on the jets. Adjust the high speed screw until starts sooting the plug at full throttle, and adjust the low speed as normal and keep an eye on the plugs. Better to start rich with the jetting then work backwards.

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