1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Repair Manual, P/N 507262, Page 211Get this manual

1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Repair Manual, P/N 507262, Page 211

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8 Inspect valves for contamination, excessive wear, or damagePay particular attention to the valve seat face, replace if pittedValve stems that show excessive wear or are warped should be replaced