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  1. #1

    97 GTX spark plug read help

    In the pic below, left plug is mag cylinder, right plug is pto. Does right plug indicate rich? If so, what is the adjustment?

    Thanks for the input!

    Click image for larger version. 

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  2. #2
    Myself's Avatar
    Join Date
    May 2007
    North Central Arkansas
    Looks a tad rich and also oil fouled. How many hours on those plugs? Could have inner crank seals leaking oil from the RV cavity.

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