1997 Johnson Evinrude "EU" 40 thru 55 2-Cylinder Service Manual, P/N 507265, Page 42Get this manual
INotellf engine shows evidence that sand or silt may have entered it (sand or silt under the engine cover or slight grinding or scraping when flywheel is rotated), do not attempt to start the engineIt must be disassembled and cleanedEngine Dropped Overboard (Running)
Follow the same procedure as Engine Dropped Overboard (Not Running)However, if there is any binding when flywheel is rotated, it may indicate bent connecting rod and no attempt should be made to start the enginePOWERHEAD MUST BE DISASSEMBLED AND SERVICED IMMEDIATELYEngine Dropped Overboard (In Salt Water)
Follow same procedures as Engine Dropped Overboard (Not Running) and (Running)Even if engine can be started, it must be serviced (disassembled and cleaned and electrical components cleaned or replaced where necessary) as salt water can cause excessive corrosion of electrical components and internal partsProlonged Submersion (Fresh or Salt Water)