Was out crabbing this morning and my big motor quit and wouldn't restart. Only spare I had was my freshwater electric and it got my 18 foot cabin cruiser across the bay (about a mile) in a half hour. Now I'm wondering, what is the difference between a saltwater motor and a freshwater one. All my book says is it will void my warranty if I use it in saltwater. Well, it's two years old so that's history but is there something I should do to negate saltwater damage? Is there really a difference between freshwater and saltwater electric motors. Mine's a Minn Kota Vector.