1977 Evinrude 9.9-15 HP Outboard Motor Service Repair Manual P/N 5305, Page 60Get this manual

1977 Evinrude 9.9-15 HP Outboard Motor Service Repair Manual P/N 5305, Page 60

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DO NOT scratch cylinder head gasket surface of cylinderUse surface plate to surface this areaWith continued operation of the motor, the cylinder walls take glaze which reduces the effectiveness of the