1977 Evinrude 175-200 HP Service Repair Manual P/N 5311, Page 54Get this manual

1977 Evinrude 175-200 HP Service Repair Manual P/N 5311, Page 54

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AOUGH AUNNING ENGINE rough running engine may due to interaction of the Power Packs because of faulty isolation diode in Power PacksThe diode may checked using an ohmmeter set to high ohms scaleCheck