1992 Johnson Evinrude "EN" 9.9 thru 30 Service Manual, P/N 508142, Page 189Get this manual
16Coat pistons, rings, cylinders, and OMC Ring Compressor PIN 326591 (PI 330223 for oversize) with outboard lubricant156 17Center 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 block rN=J The piston rings must be correctly located on their dowel
pins to prevent permanent powerhead damage
rN=J Loosely install cylinder head to prevent pistons from falling
out571 18Remove the connecting rod caps from the connecting rods19Place one-half of crankpin bearing on each rod20Place the crankshaft in positionAlign top and center main bearings with pins in the cylinder block21 Install the remaining bearing half on each crankpin22Oil threads of rod cap screws and install both rod caps finger tight