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Thread: 2007 xb12r

  1. #1
    Junior Member
    Join Date
    Mar 2023

    2007 xb12r

    Hello I just bought the bike and itís very jerky at low speed. Regardless of rpm. Changed plugs and wires cleaned air filter and am thinking next is fuel pump? I also did the TPs reset and idle adjustment here are some pics of ecmspy diagnostics. If I can figure out how to upload pics.

  2. #2

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  4. #4
    Senior Member 34nineteen's Avatar
    Join Date
    Mar 2015
    Kolache Factory
    The TPS value seems awfully low for that idle speed. Make sure the TPS sensor is operating correctly, no dead spots, spikes, etc. Or a broken throttle butterfly shaft. Or the velocity stack is mounted correctly and completely to the TB.

    AFV is also very high as well.

    Have you checked for leaking intake seals?

    I'd also start by checking the fuel pressure before hucking a bunch of parts at it.

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