1997 Johnson/Evinrude EU 25, 35 HP 3-Cylinder outboards Service Manual, Page 290Get this manual
29Oil a-rings and install them on the manual release valveOil and install the manual release valveTighten the valve to 45-55 inIbs(5-6 Nm)
[] 30Install the retaining ring with sharp edge facing out
31Slide the rod and cap up far enough to be able to install ONK: Universal Spanner Wrench, PIN 912084Fill the cylinder up to bottom of the threads32Thread the end cap into the cylinderTighten the end cap to 56-84 ftIbs(76-114 Nm)33Fill the oil reservoir up to the fill plugInstall and tighten the fill plugDo not torque the plug at this time