1994 Johnson/Evinrude "ER" 60 thru 70 outboards Service Manual, Page 76Get this manual
5!) Place vacuum passage O-ring into cavityr:J21 Apply OMC Triple-Guard grease to one end
of the poppet spring and install greased end onto the air motor diaphragm's poppet valve(The grease will help stabilize the spring while assembling Install the air motor spring onto the air motor diaphragm