1997 Johnson Evinrude "EU" 40 thru 55 2-Cylinder Service Manual, P/N 507265, Page 334Get this manual
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29Oil a-rings and install them on the manual release valveOil and install the manual release valveTighten the valve to torque of 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 OMC Universal Spanner Wrench, PIN 912084Fill the cylinder up to bottom of the threads32Thread the end cap into the cylinderTorque 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