1981 Johnson/Evinrude 4HP Outboards Service Repair Manual P/N 392069, Page 41Get this manual

1981 Johnson/Evinrude 4HP Outboards Service Repair Manual P/N 392069, Page 41

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DESCRIPTION The power consists of the cylinders, pistons, rods, crankshaft, and crankcaseThe power head has two horizontally mounted cylinders Alternate firing order is used so that each cylinder deli