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Hotter Spark Plugs

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  • Hotter Spark Plugs

    I have a 1992 40 hp johnson I use on a idle speed only lake and have to clean spark plugs frequently. If I use a one heat range hotter plug will this help with this issue.
    Last edited by kentucky; 10-12-2010, 05:03 PM.

  • #2
    nope

    use a good oil or turn the mix down to like 60 to 1

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