1997 Johnson Evinrude "EU" 90 thru 115 90 CV Service Manual, P/N 507267, Page 141Get this manual
20Inspect crankshaft sleeve and replace if necessaryTo remove, use either OMC Puller Bridge, PIN 432127, and OIVIC Large Puller Jaws, PIN 432129, or OIVIC Slide Hammer, PIN 432128, and OMC Large Puller Jaws, PIN 43212921Inspect ball bearing at lower end of crankshaft and remove if damagedUse retaining ring pliers to remove retaining ring under bearingUse OIVIC Universal Puller, PIN 378103, with four 14-28 inscrews threaded into the tapped holes in the bearing retainer plate to remove bearing
22The center journal needle bearings and bearing races CD may be removed by removing the retaining ring Q) and separating the two halves of each bearingNote retaining ring groove in bearing race faces bottom of crankshaft23Remove the rings from the pistons with suitable ring expanding toolInstall new ring sets on every powerhead overhaul