1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Manual, Page 152Get this manual
Cleaning Before inspecting or assembling powerhead, all internal components must be perfectly clean and free of contaminants1Remove any carbon accumulation from exhaust port areas2Remove any carbon accumulation from cylinder head combustion chambers3If cylinder walls are glazed from extended use, use medium grit hone to resurface wallsUse slow RPM to achieve strong "crosshatch" pattern for best oil retention and ring sealingTo avoid piston or cylinder block damage, restore the chamfer to all port edges using ball hone or other suitable tool"" To avoid personal injury, wear eye protection and rubber OMC Gel Seal and Gasket Remover i gloves when using
rv 4Use OMCadhesives,and Gasket Remover tothe cylindertraces Gel Seal remove all of gaskets, and Gel-Seal" from block