I went through mine a couple of weeks ago. 203 DFS Key West that I use off the coast of Mississippi. I changed oil & filter. New fuel/water separator. Pulled out the book and greased everything on the outboard, changed the thermostats (the 150 Honda four stroke has two), dropped the lower unit and rebuilt the water pump, painted the lower unit because I ran it through an oyster bed last and knocked off a bunch of the paint, took the prop off and greased everything, and changed the lower unit oil. In the next couple of weeks I'm going to replace my Garmin 441 sonar with a new Garmin 94SV sidevu/downvu/chirp that I bought.

Hopefully it'll be ready for this year after that.