1992 Johnson Evinrude "EN" 60 deg Loop V Service Manual, P/N 508146, Page 83Get this manual
Recirculation System Servicing 1Start the engine and operate at idle speed
rv cylinder blockSubmergerecirculation hose fromof waterthe 2Remove No.1 cylinder fitting on end of hose in cup
If bubbles appear, proceed to Step If no bubbles appear, proceed to Step 4
operation of all recirculation hoses before proceedmg
3Stop the engineCheck the cylinder block fitting with syringe filled with isopropyl alcohol If alcohol flows freely through fitting, No1 cylinder recirculation system is OK If flow is restricted, clean the cylinder block fitting4Stop the engineRemove the recirculation hose and inspect its condition If hose is damaged, replace hose If hose is OK, proceed to Step 5r:;] [";1 5Remove the carburetors and intake manifold Remove