1997 Johnson Evinrude "EU" 40 thru 55 2-Cylinder Service Repair Manual, P/N 507265, Page 326Get this manual
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rn 1 Bethe retaining ringrelease valve is screwed in all the waysure the manual Remove[I] 2 Remove the manual release valve assembly
[] 5 Inspect the components of the up check valvehousi