1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 149Get this manual
15 [lID [1ID
17Place the two wrist pin thrust washers on the tool with flat side of the washers facing out18Support the piston in OMC Piston Cradle, PI 326572Oil the wrist pin bore and wrist pin
19Install the wrist pin through the piston and connecting rod, pushing the tool out through the piston
20Using OMC Cone, PI 318600, and Driver, PIN 318599, install new wrist pin retaining rings in each wrist pin holeGap of the retaining ring faces down, away from notch in piston
21Repeat Steps 16 thru 20 for each piston