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four strokes are pure marketing hype. They have one advantage over 2 strokes, and that is because they are quieter. they are quieter because they are only firing half as many times as a 2 stroke.
2 strokes have an advantage in weight, initial cost, maintenance, parts cost, and simplicity.
As for "two combustibles on board" Four strokes need two combustibles, too. oil is oil. 10w-40 burns just about as good as 2 stroke oil.
As for a slight fuel efficiency gain...take the added cost of the initial purchase, the added cost of maintenance, the added costs of replacement parts and spares, and total that up. Then see how many gallons of fuel you can buy for that.
Then look at how much longer you can run a two stroke for the same money you spent on the heavier four stroke.
and if the marketing people at the outboard companies can figure out a way to make you think inverted three cylinder doo dads with a reverse thrust anti-cavitation widget is better than the four strokes they sold you last.....A bunch of people would all go buy those, too, and swear up and down how superior the new motors are and how smart THEY were to buy them.
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Last edited by 2Gringos; 03-11-2010 at 05:59 AM.
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