2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 154Get this manual
POWERHEAD CYLINDERCRANKCASEPISTON ASSEMBLY Remove piston pin cireipsRemove piston pin from connecting rodRemove piston rings from pistonThe cylinder can be resurfaced using surface plate and #400 grit wet sandpaperMove the cylinder in figure eight pattern when sanding
1Circlips 2Piston pin 3Connecting rod 4Piston 5Piston rings
CleaningInspection
excessive wear, cracks, defects, or damage is found on any component, replace component