1998 Johnson Evinrude "EC" 25, 35 HP 3-Cylinder Outboards Service Manual, Page 281Get this manual
8Install five impact relief valve ballsPlace one ball in each of the remaining cavities-
rn 10.relief valve balls.guide and spring assembly on each thethe Place spring of impact Place the up relief valve spring on up rn 11Place the large washer overthreads of thewith with OMC the springs step side facing valve housingLightly coat the rod rn 12Install and tighten the nut to 35-54 ftIbs(47-73 Nm)[] 13Lubricate the inside of the cylinderSlide the piston and rod assembly into the cylinderDo not engage the threads of the caprelief valve