2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 193Get this manual
POWERHEAD DISASSEMBLY2530 IMPORTANT: Remove the lower main bearing only if it needs to be replacedUsing external retaining ring pliers, remove the lower bearing retaining ringUsing an appropriate bearing separator place separator flats against the bearingSupport the bearing and separator and press crankshaft from bearingRemove the rings from the pistons using piston ring expandersDO NOT try to save the ringsInstall complete set of new rings at reassemblyThe fit between the wrist pin to bosses of the piston is loose on both sidesPush the wrist pin through to free the piston from the connecting rodIf necessary, use Piston Cradle, PIN 326573, and Wrist Pin Pressing Pin, PIN 326356With the piston skirt flush with the cradle, press out the wrist pin using an arbor pressBe careful not to lose any of the 28 needle bearings or the two wrist pin washersIf any of the needle bearings are worn or lost, replace bearing assembly