I just bought a Johnson 9.9 4-stroke. I sail on the Mississippi so you need some push going upstream. I am just about to put my O''Day 26 in and use this engine for the first time. It is very heavy - 112# and that concerns me a little. I did beef up the outboard bracket to one that will hold 240#. I''m looking forward to improved thrust and lack of oily smoke. The Yamaha 9.9 looked pretty heavy too and I got a good deal on the Johnson.