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Does anyone know where I could fine a table or information on what a 225HP Mercury would burn an hour at all RPM Ranges???
 

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You won't find one anywhere. Depends as much more on the boat than the engine. A boat magazine with a test on the same or very simliar hull/loading and that engine would be your best shot.
For 150-200 dollars you can put a fuel flow meter in and do your own tests and curves of rpm/fuel consumtion/mpg etc. It's well worth the money if you are into long range running. It will also tell you if your motor suddenly has an problem. If the fuel flow suddenly change at a given speed/rpm somethings wrong.
Third thing- you should never run out of fuel with one. You'll know exactly how much you've burned which means you know exactly how much you have left. :cheers:
 

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Netone,

Check out the Yamaha outboard motor website.

They have boat tests with fuel consumption. These should be about the same for other 4 cycles.


Yamaha also has some 200HP Yamaha Marine Motor Website 2cycle info.

Pick a similar weight, hull boat and you should be close enough.

Brion
 
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