For many sorts of angling, the Outboard Motor is the answer. But it includes queries, too -- that is greater, two strokes or even four? What's the right prop? Is the larger engine the better motor?
Boat buyers years ago were made rightfully leery of boat packages when some dealers priced them with puny 2 Stroke Outboard Motor, then coached the customer up to a respectable power plant before closing the deal. Those who spent the extra bucks to get a larger motor were generally well-served; those who remained with a small motor for the reduced cost point were often disappointed.
Things are better now: You'll find fewer underpowered packages available on the market. Still, bigger is usually better.
One of the worst things you can do would be under-power a ship. You will not ever enjoy the performance built into the hull. You won't be prepared to scoot from an upcoming storm. Prospective buyers of your ship down the street will cast a jaundiced eye.
Going with the ship maker's highest score, located on the inspection plate, is a pretty safe bet. If you are on the fence, you can confirm with boat makers, who generally have available test data on the boat of your choice moved with various makes and models of engines.
picture from https://yamahaoutboards.com/en-us/#
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