1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 139Get this manual
Disassembly
f1l 1Remove the ten screws attaching the intake manifoldRemove the manifold and discard the gasket2Remove the starboard lower engine cover mount bracket
l!J taper pin toward the intake manifold surfaceDo not use any
tool smaller than the taper pin bore to remove the pin4Remove the four lower crankcase head screws'sl 5Remove both lower crankcase head seals using OMC Puller Bridge PIN 432127 and OMC Small Puller PIN 432131Discard both seals and O-ringf61 6Remove the twelve exhaust cover screwsRemove the cover and discard the gasket22336