I have owned a 2005 4.3MPI in a Doral BR176 for about 3 years in a freshwater lake in Northern Ontario.. Ever since I got it there has been this minor issue. It normally starts and runs fine. It will idle in forward all day without a hiccup. But in neutral, after a few minutes idling it will sometimes stumble for a few seconds and act like it's going to stall. It doesn't stall, and returns to normal idle again. On any given day it may or may not do it, so right now it's just a minor irritation. But my concern is that it will stall out at some inopportune time, or maybe get worse and fail to restart.
Any ideas where I should start to look? Thank you.
Any ideas where I should start to look? Thank you.

