1998 Johnson Evinrude "EC" 25, 35 HP 3-Cylinder Outboards Service Manual, Page 277Get this manual
[}] 8Remove the four large motor flange retaining screwsRemove the motor and discard the O-ring rn 10Remove 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 assemblyINotel The pump assembly is not serviceableIfthe pump assembly needs flushing, do not clean it in solventOnly clean the pump assembly in clear hydraulic fluid