1999 "EE" Evinrude 5 thru 15 4-Stroke Service Manual, P/N 787022, Page 172Get this manual
0.2168 in 0.21650,008),5 mm0,000 0.413 in 0.006 +''""'-(10,5 mm 0,15)
Inspection
1Prior to any inspection process, all internal components must be clean and free of excess oilRefer to Cleaning, this section2Inspect all internal components Check fo unusual wear patterns, scuffing or deterioration of 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 setCylinder head warpage must not exceed 0.003 in(0,08 mm) per inch of measurementReplace head if warpage exceeds this dimension 4Inspect valve guides for contamination, excessive wear, or damageThoroughly clean all carbon deposits from valve guidesIf guides are replaced, seats must be reground