ZRX1200 Carb Conversion

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  • Bonz
    XS-XJ Super Guru
    • Apr 2008
    • 3322
    • Palmer Lake, Colorado

    #91
    For sure I don't want to be the one to say pilots and it's the mains or say mains and it's pilots. Lol.

    Three turns out of the pilot says that's pretty good for idle, Going up a size in pilots would probably mean two turns out total on the new screw setting more or less.

    If you feel it pulls good up top, try richening up the needle a half position at a time. If you are at three notches down from the top, put a washer under the clip to make it 3.5. Or however you would arrange the clip and washer to get a half position based on your current setting.

    I've discovered two stages to barely cracked throttle according to my wrist and the AFR gauge. Barely barely cracked which is still the pilot system, and then barely cracked past that which starts to bring the needle up out of the main ever so slightly. I tend to spend more time at the second stage of barely cracked throttle and was leaner than I wanted to be. A half position on the needle got it better without richening everything else up too much.

    Thanks for asking for the advice, I hope it gets things richened up.
    Howard

    2001 ZRX 1200
    1982 Seca 750
    1983 Nighthawk 550

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