2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 152Get this manual
POWERHEAD ASSEMBLYHP Lubricate wrist pin and wrist pin bore with oil and assemble wrist pin, rod, and pistonPush wrist pin through piston and rodwork around until installation is completeInsert second scraper ring, above segmented ring, in the same fashion
Install wrist pin retaining ring in piston by positioning on end in groove and pushing in with finger
Angle the scraper ring end gaps and segmented ring gap 45 from center points of wrist pin to ensure proper sealingInstall the middle ring in the middle ring groove with the "2" stamping facing up (white paint to right side of gap)Install the top ring in the top ring groove with the "R" stamping facing up (orange paint to right side of gap)Angle the end gaps of the rings, opposite each other, 90 from center point of wrist pin to ensure proper sealing