Have a 97 Yamaha 150 2-stroke on a 23ft deck boat. Want a 2002 w/a cuddie with 2 merc 90hp 4-stroke on it.also a 23ft. I'm very happy with the Yamaha 2- stroke with over 900 hrs on it, but want to upgrade to the 4-stroke engine,have read some of your articles on the 4-stroke and how hard they...
