1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Manual, P/N 520210, Page 79Get this manual
[] 7Carefully snap oil piston and link onto stem of fuel piston screwPlace drop of oil on oil piston seal]8Position a-ring seal around fuel inlet housing flangePosition fuel inlet housing over oil pump piston, and insert piston into oil pump bore [IQ]
9Push fuel inlet housing (with a-ring) down against intermediate housingRotate back and forth slightly to seat a-ring seal in groove and align screw holes in flanges
10Insert and tighten Torx screwsSee Replaceable Fittings General Procedures, this section, for thread forming screw installation precautions