1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 157Get this manual
r:;:;l 23Carefully remove the pistons from the cylinder blockProtect the condition of the piston by packing paper towels between the connecting rod and pistonDo not allow the connecting rod to touch the inside of the piston or the cylinder wall 122124Using an appropriate ring expander, remove piston rings
from both pistonsr:;:;, 25Using tool as drawn on Page 4-8 or OMCRetaining Ring Pliers, PIN 325937, remove all wrist pin retaining ringsDiscard retaining rings
12411251 26.loose fit between the Push the wristbosses ofthe to free The wrist pin and piston on both sidespin through is