I also owned a porte a bote. I bought a 5 hp 4 stroke nissan with it. It worked great on that boat, and I still use it as a kicker on my deep vee, it is one great motor, it has run in salt water, brackish water, and in rivers and lakes. In 7 years the only repair was a carb, and that was through my neglect. I also had a minn kota rear mount trolling motor on that outfit, which I still use today.I change oil once a season, use only premium synthetic, and I'd gladly buy another nissan 4 stroke.