mrpike1973 Posted July 23, 2010 Share Posted July 23, 2010 hi i was told my plugs are l86c champions however they had l77jc4 in them the parts guy says i need the last one but i'm more compelled to use what boat fixer guy said is the old plug causing damage or are they the same plug Quote Link to comment Share on other sites More sharing options...
mrpike1973 Posted July 23, 2010 Author Share Posted July 23, 2010 my model no is e6rcec thanks i did some lookup on internet i come up with both plugs one is a copper core is this the difference Quote Link to comment Share on other sites More sharing options...
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