1996 Johnson Evinrude "ED" 9.9 thru 30 2-Cylinder Service Manual, P/N 507122, Page 176Get this manual
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18Coat pistons, rings, cylinders, and OMC Ring Compressor, PIN 326591 (PIN 330223 for oversize), with outboard lubricant
1141 19Center connecting rod in piston and locate piston rings on
their dowel pinsSlide one piston assembly into the respective cylinder bore while guiding the connecting rod through the blockThe piston rings must be correctly located on their dowel pins to prevent permanent powerhead damage