1983 Johnson/Evinrude 2 thru V-6 outboards Service Repair Manual P/N 393765, Page 250Get this manual

1983 Johnson/Evinrude 2 thru V-6 outboards Service Repair Manual P/N 393765, Page 250

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A rough running engine may be due to interaction of the power packs because of faulty isolation diode in power packsThe diode may be checked by using an ohmmeter set to high ohms scal