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| Carbed 2 stroke motors will be around for a while yet. They are just too dependable. The 4 stroke motors can't be beat in the smaller motors, like about 90hp and under. They are quiet and get about 30% better fuel economy than a comparable carbed 2 stroke and of course no exhaust fumes. They all pass 2006 federal emission standards and are the most popular by the average boater.
The new technology DFI motors have all of the attributes of the 4 strokes in fuel economy, usually better, and even emissions. The 2 stroke DFI motors have one thing that the 4 strokes don't, however, and that's power. So when looking at a motor over 90 or 100 hp, the DFI 2 strokes are the way to go. Whether a Bombardier DFI, a Yamaha HPDI or a Merc Opimax, They are quiet running, are better on fuel, pass the same federal emission standards and have 2 stroke power in comparable horsepower motors. | |
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