1989 Johnson Evinrude "CE" 120/125/140/185/200/225/300 HP Service/Repair Manual P/N 507758, Page 194Get this manual
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13 Disconnect crankcase recirculating hosesRemove Power Boost T" cooling hose from starboard cylinder head1281 14 Remove crankcase flange screws1291 15 .Losen and remove the upper and lower crankcase