1998 Johnson Evinrude "EC" 125C, 130, 200, 225, 250 90 deg LV Service Manual, P/N 520212, Page 210Get this manual
Inspection
1Before any inspection process can begin, all internal components must be clean and free of excess oil
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
3Check 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
Use micrometer to measu re the diameter of each crankpin and main bearing journalThe lower main bearing journal would only be measured if the bearing was removed for another reasonRefer to Engine Specifications, Section 1, for dimensions
5Visually inspect crankcase seal rings for worn, grooved, or chipped conditionIf rings appear worn, use micrometer to measure ring thickness Replace rings that are thinner than 0.154 in(3,9 mm)Install seal rings in their original positions on crankshaft after inspection