1996 Johnson Evinrude "ED" 90 CV 88 thru 115 Service Manual, P/N 507126, Page 142Get this manual
25The wrist pin fit is loose on both sidesPush the wrist pin through to free the piston from the connecting rodIf necessary, use OMC Pressing Pin, PIN 326356and OMC Piston Cradle, PI 326572to remove the wrist pin bearing
26Be careful not to lose any ofthe 28 needle bearings or the two wrist pin washersIf any of the bearings are worn or lost, replace all 28 bearings during reassemblypowerhead internal components
INotel Prior to inspection and assembly, thoroughly clean all
Cleaning
I Notel Before inspecting or assembling powerhead, all internal
components must be perfectly clean and free of contaminants1Remove any carbon accumulation from exhaust port areas2Remove any carbon accumulation from cylinder head combustion chambers3If cylinder walls are glazed from extended use, use medium grit cylinder hone to resurface wallsUse slow RPM to achieve strong "crosshatch" pattern for best oil retention and ring seal ingINotel To avoid piston or cylinder block damage, restore the
chamfer to all port edges using ball hone or other suitable tool