1999 EE Johnson Outboards 25, 35 3-Cylinder Service Manual, Page 77Get this manual
12Remove the two screws securing the fuel outlet fitting retainer to the oil mixing unit coverRemove the retainer, fitting, and O-ringDiscard the O-ring13Pinch the piston seal and roll it off the pistonDiscard the piston seal
rnmixing unitNotescrews securing the mixingthen remove to 14Remove six unit bracket the the position of the bracket, it15Remove the remaining two screws and washers Separate the oil mixing cover from the intermediate housing Remove the piston and diaphragm assemblythe small springand the large spring CDDiscard the piston and diaphragm assemblyCleaning, Inspection, and Lubrication