Re: J11 spark plug replacement question.

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April 17, 2016 at 4:58 am #34924
retiredoz
Participant

    According to my old Champion cat, there’s no Autolite equivalent to J11. AC 46 is equivalent. The Autolite plug converts to RF11YC, which is an extended electrode-type not commonly used in old outboards..If you can find an NGK B2, you’re in luck..