Which plug is correct ?

cyclops2

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Join Date: May 2015

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#1

Which plug is correct ?

09-09-2016, 11:52 AM

My 1988 28 spl is in need of plugs. I get different heat ranges from asking NAPA stores & Evinrude lookup. Champion said there is a 3 heat range difference between the 2 companies.

Any for sure # to use ?

Thanks
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Joe Reeves

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Join Date: May 2015

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#2

09-09-2016, 05:50 PM

Use Champion QL77JC4 plugs, gapped at: (Your choice as below)

.040 - Originally recommended when new (Hot spark)

.030 - Revised recommended in the late 1990's (Long life)
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