Hi I need advice I have a 14ft invader with a 55hp evinrude.<br />What I want to know is what would be a good size for a backup engine I don't fish so I don't need to troll I just want abackup in case my main engine goes down.<br />It hapend just last week I was stuck on the lake for 2 hours until I got towed back in I don't want to go thorught that again.<br />I only boat on inland waters any help would be great.<br />thanks.<br /> 