Sparkplugs for a 1973 Johnson 25hp

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rednecknproud21
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Joined: 08 Jul 2015, 08:37
Location: Greenfield, Indiana

Sparkplugs for a 1973 Johnson 25hp

Post by rednecknproud21 » 12 Aug 2016, 22:12

I'm confused as what sparkplugs I should be using. So many websites say different ones. The motor currently has J8C champion plugs are these the correct ones or should I use something else? Any insight would be helpful.ImageImage

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jojo
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Joined: 18 Mar 2010, 03:27
Location: Wisconsin

Sparkplugs for a 1973 Johnson 25hp

Post by jojo » 14 Aug 2016, 11:15

J4C is what I am finding.

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