1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 135Get this manual
26Remove both center main bearings and split sleeves from the crankshaft for inspection
rn 27Remove crankcase seal rings for inspection
28Using an appropriate ring expander, remove all piston rings from pistonsDiscard the rings29Using tool as drawn on Page 4-6, remove all wrist pin retaining ringsDiscard retaining rings
30The wrist pin fit is loose on both sidesPush the wrist pin through to free the piston from the connecting rod If necessary, use OMC Wrist Pin Remover, PIN 342657, to remove the wrist pin31Be careful not to lose any of the 24 needle bearings or the two rist pin washersIf any of the bearings are worn or lost, replace all 24 bearings during reassembly
32Remove the neutral detent retaining ring using small screwdriverRemove the detent ball and springCleaning