1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Manual, P/N 507262, Page 203Get this manual
31Remove screw and washer retaining camshaft pulleyRemove pulleyRemove key from cam 1321
32Remove four screws retaining breather coverRemove cover and a-ring sealDiscard seal33Remove the screw and lock washer retaining reed and reed stop to breather plateRemove reed, stop, and plate34Remove a-ring seal and mesh breatherDiscard seal and replace breather, if necessary35Remove four screws retaining the cylinder head coverRemove cover and a-ring sealDiscard seal