1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, Service Repair Manual P/N 507875, Page 191Get this manual
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13 Disconnect crankcase recirculating hosesRemove Power BoostTM cooling hose from starboard cylinder head
1301 16 Loosen in stages and remove the main bearing screwsUpper port screw is removed w