1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 283Get this manual
8Remove the four large motor flange retaining screwsRemove the motor and discard the O-ring9Remove the filter10Remove the drive coupler from the pump assembly
11Evenly loosen and remove the three Allen head cap screws that retain the pump assembly to the manifoldRemove the pump assembly
INotel The pump assembly is not serviceable.lfthe pump assembly needs flushing, do not clean it in solventOnly clean the pump assembly in clear hydraulic fluid