Re: gamefisher air cooled? impeller?
Sounds like an Eska designed outboard, does the engine look like a lawnmower engine with a finned cylinder? If yes, the impeller cools the exhaust, and yes it's needed. There are a couple of holes above the prop in the leg, exhaust relief holes, that will lightly spray water when the outboard is running. There is no tell-tale (IE: pizzer).