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  1. August 24th, 2009, 07:55 PM #1
    shavdog
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    Default 1975 4hp evinrude spark plug number

    I just bought this motor model number 4506 and think its a 1975 4hp...the plug number is champion QL86c and I'm wondering if this is the correct plug...could someone help me with this..thanks craig
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  2. August 24th, 2009, 07:58 PM #2
    Joe Reeves
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    Default Re: 1975 4hp evinrude spark plug number

    Champion J6C plugs, gapped at .030 . It is a 1975 4hp Evinrude.
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  3. August 24th, 2009, 08:28 PM #3
    shavdog
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    Default Re: 1975 4hp evinrude spark plug number

    Thanks Joe...glad I checked...craig
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