Reply To: 1974 Johnson 70 over charging to 15.3 volts

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January 23, 2023 at 5:09 pm #271649
billw
Participant

    US Member

    13.8 used to be sort of the accepted “ideal,” but these days, I see 14 to 14.5 on new engines all the time. I personally don’t like 15 and above, either. If I had a boat with that reading, I would be trying to find out why.

    Long live American manufacturing!