1977 Evinrude 4HP Outboards Service Manual, PN 5303, Page 47Get this manual
DISASSEMBL POWER HEAD aRemove three screws, support plate and retainerNote position of retainerSee Section 4
bRemove cylinder head and gasket by removing the six head screwsSee Figure 5-5cRemove exhaust cover and gasket by removing the seven cover plate screwsSlide cover out from under starter bracketSee Figure 5-5