1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 168Get this manual
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IMPORTANT: Piston pin needle bearings and locating washers will fall out when piston is removed from connecting rod11Slide piston pin tool from piston and remove piston, needle bearings and locating washers12Using Piston Ring Expander, remove (and discard) piston rings
aNeedle bearingsLocating washersRing Expander (91-24697) IMPORTANT: DO NOT remove ball bearing from crank shaft unless replacement is necessary as removal process will damage bearingRefer to Cleaning and Inspection following13Remove lower crankshaft ball bearing using Universal Puller Plate, suitable mandrel (to protect crank shaft while pressing) and press