I just purchased my first boat, an older 16' zodiac with a 40hp two stroke. The boat needs some work but it seems manageable and the motor is in running condition. I'm pretty mechanically inclined as far as repairs go, but i'm considering adding a kicker as a backup to the old 40hp. My intended use for this boat is salwater, but I'd like to have the versitility to take it on the Kenai, which I cannot with the 40hp. Any ideas for a motor that can do double duty (kicker and kenai)? I was thinking a four stroke 9.9. Personally, I'd prefer one of the newer direction injection two strokes but they seem much more expensive than a comparable four stroke. I'm interested to hear suggestions and see what other people are using, thanks.