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  1. #1

    help with a/f ratio under 5500 rpms

    my a/f ratio while not in boost reads mid to high 11's. i thought it should be running lean with the rr ecu while not under load. what do u guys think? also if riding at say 2200 rpms and i crack the throttle and let off, the motor sounds like its about to cut off. the rpms drop to about 1200 and seems like the motor kind of shakes a bit until fuel is burned off. its very brief though. fouled plugs or just pig rich? mods are in my signature. thanks

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  4. #4

    Join Date
    Jun 2005
    rome ga
    What happens if you turn up the fuel pressure?

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