Walt wrote:

Im thinking about putting a small 3.5 hp 2 stroke outboard on the square
tansom of a 16 foot long canoe. 8 snip...

I've been using a Honda four-stroke 2 hp outboard to power an old 18 foot
Grumman canoe (using a side mount). The motor is quite adequate to the
task yet still relatively light in weight considering that it's not a
two-stroke motor. Much easier on the fuel and the environment. We use it
to go up a nearby river where the currents preclude paddling.

- p