18 horse power Vanguard high rpm miss

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Thread: 18 horse power Vanguard high rpm miss

  1. #1
    Join Date
    Jun 2016
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    Edgerton, MO
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    18 horse power Vanguard high rpm miss

    This is probably a stupid question but is this mouse damage enough to cause a miss?
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  2. #2
    Join Date
    Sep 2012
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    Hanover,PA
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    It can as the Voltage will leak through and lessen the spark out put at the plug.
    But this will happen and Low rpm also. when are you seeing the miss ?

  3. #3
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    Jun 2016
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    Edgerton, MO
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    Close to max speed at wide open throttle, governor is stock never touched it

  4. #4
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    Ok that helps ! Is it a spark miss like flipping the switch or Fuel miss like Leans out and starves one bank ?
    You can look at the plugs also. If thy are White and clean it is Fuel. Black and sooty then Spark.

  5. #5
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    OH and get a CAT or a mouse trap as the mice tend to make you spend money !!!

  6. #6
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    Jun 2016
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    Edgerton, MO
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    Right on, pulled plug on that cylinder, was black and sooty, front plug looked good, this engine only has about 6 hrs on it. Just put new coil on, off to test drive...

  7. #7
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    That is SPARK for sure !
    Let us know how it turns out.

  8. #8
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    Jun 2016
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    Edgerton, MO
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    Much better now! Thanks Wedge.

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