Re: 40-60 HP Evinrude E-Tec in Saltwater?
The latest generation of outboards are much more corrosion resistant than earlier models. My E-Tec 90 is almost bullet-proof in that area. Although the smaller motors are being marketed to the freshwater crowd, they're not being built any different than their larger cousins, that I'm aware of. You might be interested to know that the initial testing of E-Tecs, before they were offered to the general public, involved a variety of sizes placed in the hands of special operations outfits around the world...
One of these days I hope to set up a second skiff to work really shallow with one angler, something that floats in 5" or less water. Those small E-Tecs will get first consideration as power if the weight considerations allow.