1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, Service Repair Manual P/N 507875, Page 379Get this manual
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Disassembly
5 Hold pump pulley with Stevens Strap Wrench S-17 and remove the locknut
6 Assemble these components from OMC Universal Puller Set PI 378103 Body PI 307636 Screw