Re: nickel and dimed
It is quite normal for a 1988 Force 125 to smoke, and to leave a trail oil slick. It is a 2 stroke, and that is what 2 strokes with carburetors do.
No valves to give problems, by the way, unless you think of the reed valves, which have nothing to do with smoke or oil slick.
It is good to pay close attention to your outboard and to question anything that doesn't seem normal. You are taking good care of her.