Well I wasn't going to post a reply to this thread because I figured there would be to many that disagreed with me. Run it at 800 to 1800 hundred for a 1/2 an hour or so at the dock with no load varying back and forth to beak in the cam, lifters, and rings. Change the oil with a new filter and if you already didn't at start up initially, fill the new filter with oil before you install it before restart. ( if possible that should be done at every oil change ). Then as allout said run the dang thing varying rpm's & speed on plane for 4 ta 5 hrs and have at it with your normal trolling & engine maintenance after that
I'm sure J'Bill will chime in here as well.