While the engine is running ,disconn the fuel line to burn off the fuel in the engine,if you can't get to the fuel line ,drain the tank and run the engine to burn off the fuel, if engine is 2s put oil,dozen or so drops,in carb.,turn the prop to get the oil in the bearings and the lower unit,if 4s,the oil goes in the breather vent hole. Any corrision- inhibiting oil will work,I use marvel mystery oil,3in1 will work,transmission fluid,or a blend of something will work.
Have a goodun,John.