Home › Forum › Ask A Member › 1974 Evinrude 9.9 won’t idle at low RPMs, need help › Re: 1974 Evinrude 9.9 won’t idle at low RPMs, need help
April 24, 2016 at 5:04 pm
#35396
I’ve used NGK BR7HS ,part#1098. Gap at .030. A bit hotter than what you have.
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