1990 Johnson Evinrude "ES" 60 thru 70 Service Repair Manual, P/N 507873, Page 51Get this manual

1990 Johnson Evinrude "ES" 60 thru 70 Service Repair Manual, P/N 507873, Page 51

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Maximum Spark Advance Adjustment Characteristics of this ignition system cause an automatic increase in spark advance over the basic setting as engine speed increases from approximately 3500 to 5000 R

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