1984 Johnson Evinrude 2 thru V-6 Service Repair Manual P/N 394607, Page 241Get this manual

1984 Johnson Evinrude 2 thru V-6 Service Repair Manual P/N 394607, Page 241

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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