1998 Johnson Evinrude "EC" 40 thru 55 2-Cylinder Service Repair Manual, P/N 520206, Page 331Get this manual
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8 Install five impact relief valve ballsPlace one ball in each of the remaining cavities
12 Install and tighten the nut to torque of 35-54 ftIbs(47-73 Nm)
13 Lubricate the inside of