1998 Johnson Evinrude "EC" Accessories Service Manual, P/N 520213, Page 179Get this manual
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Spool Valve Shimming
5 Remove the locknut and washers from the spool valveSave the washers
6 Install one O-ring, PIN 912357 (0.734 0.139 in, on the new spool valveLubricate both par