1994 Johnson/Evinrude "ER" 2 thru 8 outboards Service Manual, Page 147Get this manual
InspectionAn Models 1Before any inspection process can begin, all internal components must be clean and free of excess oilRefer to Cleaning, this Section
2Make visual inspection of all internal componentsCheck for unusual wear patterns, scuffing or deterioration of aluminum parts, heat-related discoloration of bearings or bearing surfaces, and broken components thruThe metering rods must be in place in the crankcasePlace the long rod in the upper hole and the short rod in the lower hole
f21 Check for cylinder head warpage using piece of bar stock or machinist's straightedge and feeler gauge set Cylinder head warpage must not exceed 0.004 in(0,10 mm) end to endResurface or replace head if warpage exceeds this dimension
4Use micrometer to measure the diameter of each crankpin and main bearing journalThe lower main bearing journal would only be measured ifthe bearing was removed for another reason Refer to Engine Specifications, Section 1, for dimensions