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  1. December 4th, 2011, 03:53 PM #1
    VolBall
    [OP] VolBall is offline
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    Default 1989 Johnson 40HP J40ELCEC

    Is QL78YC the best spart plugs for this engine? I have the oil pump disconnected and I mix my oil and gas at 50:1. What about a surface gap plug? The motor is on a small bass boat and is ran wide open most of the time.
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  2. December 4th, 2011, 04:06 PM #2
    boobie
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    Default Re: 1989 Johnson 40HP J40ELCEC

    Yes. Gapped at .030 ".
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