Reply To: 1946 evinrude zephyr

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February 24, 2019 at 1:20 am #169542
Mumbles
Participant

    NGK BM6A’s are another good choice for these motors They are a tad hotter than the BM7A plugs and will burn a bit cleaner if the motors compression is down a bit. As stated, the terminal nut is removable and if necessary, a small washer can be placed between it and the stock ring terminal on the plug wires to help keep them on.

    Using a quality outboard motor oil in ethanol free gas mixed at 16:1 will help keep everything running smoothly and also keep carbon deposits to a minimum.