1973 Evinrude Norseman 40 HP Service Repair Manual P/N 4907, Page 44Get this manual
Quality of the image is intentionally reduced!
DO NOT scratch cylil1del' head gasket surface of cy linderUse surface plate to urface thisWith cOl1tinued operatiol1 of theth cylinder walls will ta ke glaze which reduces tl1e tivss of the seal betwe