1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 153Get this manual
Disassemblythru Deluxe To simplify reassembly and wiring installation, layout the various screws and clamps in the order of their proper location1Remove carburetor, leaf valve assembly and intake manifoldDiscard gaskets2Remove the cylinder head and gasketDiscard the gasket3With an indelible ink marker, mark the top piston dome, "No1," and the bottom piston dome, "No.2 4Remove exhaust coverDiscard gasket] 5Remove the lower crankcase head Remove snap ring from crankcase
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7Using tool as drawn on page -8, or equivalent, push the crankcase taper pin toward intake manifold surfaceDo not use any tool smaller than taper pin bore to remove the pinRemove the crankcase to cylinder block screwsLoosely install the cylinder head to prevent the pistons from falling out when the crankshaft is removed