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Not working properly back fires, goes through spark plugs

I have used up a spark plug on this in 3 months. Once that dies, I have to replace it.

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  • gldbrgbrn
    gldbrgbrn Oct 25, 2012

    The spark plug is black and fluffy as you say it is probably a flywheel key. It has gone over many rocks and roots. The model is 12AV569Q711. But the engine is Honda. That is the way it was sold in the store.

  • gldbrgbrn
    gldbrgbrn Oct 26, 2012

    Sorry wrong model number: 12AV834Q711. The engine is GCV160 and the manual says to check the brake shoe is a minimum of 3 mm. I will keep you posted.

  • gldbrgbrn
    gldbrgbrn Nov 01, 2012

    Turns out the flywheel key looks fine. I am putting in a new one but I bet that wasn't the problem since the old one looks just like the new one.

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What is the color of the spark plug when it is done? Black and fluffy means weak spark or ignition timing is off ( flywheel key). White or light colored and glazed means hot. Usually lean fuel condition and or the presence of water.in the fuel.

Posted on Oct 25, 2012

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