2 stroke vrs 4 stroke outboards - SailNet Community
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post #1 of 12 Old 06-29-2006 Thread Starter
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2 stroke vrs 4 stroke outboards

I am looking to by a new 50HP outboard for a 14' hardbottom inflatable dingy. I can get a 50PH Mercury 2 stroke oil injected for around $4200 or I can get a slighty used (4 months in fresh water) Yamaha 4 stroke for around the same price. I know the 2 stroke is louder and requires oil, but it is lighter and less expensive to maintain. Is there any good reason I should go the 4 stroke route? How much less gas will the 4 stroke birn anyway?
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post #2 of 12 Old 06-29-2006
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The four-stroke will probably last longer, use about two-thirds the fuel, and a lot less in oil, save your hearing, and the environment in the process.

Please note that these are rough guesses and based on experience and YMMV.

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post #3 of 12 Old 06-30-2006
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For a dinghy of Your kind I would go for a 2 stroke. It may be 'louder', but only at low rpm's. Oil consumption -depends on usahe, but remember You have both filter and oil to change on the 4 stroke. Wheight - the main reason I would go for a 2-atroke. Acceleration: for water skiing 4 strokes are killing slow, for wakeboarding 'ideal' ast they pull up an enormous wake! If You submerge the engine: 2-stroke you almost simply drain the carbs and restart, 4-strokes: numerous oil changes etc, carbs and very often cam belt and electonics.
Pick Your preferences and choose!
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post #4 of 12 Old 07-01-2006
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I vote for the 2 stroke too....many mechanics in the Carib can't handle the 4 strokes and everyone can repair a 2 stroke. If you are in the VI's, the 2 stroke would probably be the best bet.
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post #5 of 12 Old 07-01-2006
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The new 2-strokes have eliminated a lot of the old concerns in comparsion to 4-strokes. My brother got one of the Evinrude V-Tech's for his boat and loves it.

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post #6 of 12 Old 07-02-2006
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BTW, if you're in the USA, and you're looking to get a two-stroke, I'd get it soon, as the two-strokes will probably not be sold for all that much longer here. The EPA has been cracking down on pollution from small two-stroke engines, as they pollute quite a bit more than the four-stroke engines.

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post #7 of 12 Old 07-02-2006 Thread Starter
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Thanks for the help, while I do agree the 4 strokes are better the the environment, I will take the preformance and weight of the 2 stroke.
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post #8 of 12 Old 07-02-2006
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Exclamation No brainer

As a former small engine mechanic I can tell you it's a no brainer. Go with the yamaha four-stroke. In the long run it'd be worht double the price of the two-stroke. The four-stroke will be cheaper to maintain if you look at the big picture. It'll use way less gas and you'll be able to hear yourself think over the noise of the engine. The other issue is the brand. Yamaha is the best. There's not room for argument here. Keep on top of the oil changes and it'll last you forever.
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post #9 of 12 Old 07-10-2006
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I believe that the scales tip more heavily in favor of a two stroke with smaller engines. My decision would probably turn on whether I was keeping the engine on the boat and whether I intended to lift it frequently. The four stroke will be significantly heavier. On the other hand, if you are using it a lot, the four stroke will be substantially quieter, smoother and more efficient. Good luck.
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post #10 of 12 Old 07-10-2006
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2 Strokes pollute!!!!
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