1971 Evinrude 40HP outboards Service Repair Manual, Item No. 4750, Page 45Get this manual

1971 Evinrude 40HP outboards Service Repair Manual, Item No. 4750, Page 45

Quality of the image is intentionally reduced!

DO NOT scratch cylinder head gasket surface of cylinderUse surface plate to surfa ce this areaWith continued operation of the motor, the cylinder walls will take on glaze which reduces the effectivene