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Merc 250 Xs Info Needed

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Old 06-30-2006, 08:52 PM
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Merc 250 Xs Info Needed

Anybody Have The New 25o Xs Motors That Run On 87 Or 89 Octane ?

Can You Tell Me Any Good Or Bad News On Them .
How They Run At Idail And At Cruise Speed Do They Fouls Plug's Often At Low Speed " No Wake" ?
And Of Course Top End Speeds .
How Much Fuel They Burn On Average .

Thank's For Your Help
Mike
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Old 07-01-2006, 08:34 AM
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Default Re: Merc 250 Xs Info Needed

I had one on a 22 Velocity CC. It was a great motor, good on fuel and had great manners, it was no problem at low speeds. The new owner of the boat changed the motor to a 250 E-tec and picked up about 4 mph though. The boat ran 62/63 mph with the Merc. We were really amazed at the performance of the Evinrude over the Mercury. Hope this helps.

Cheers,

Andy
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Old 07-01-2006, 08:59 AM
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Default Re: Merc 250 Xs Info Needed

Speed and fuel burn all depend on the boat you put them on. There is a boat with twin 250xs Opti's in my neighborhhod it is a 30' center console and it runs 80.
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Old 07-01-2006, 09:39 AM
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Default Re: Merc 250 Xs Info Needed

I have a set of 250xs on my 36 concept. They are awesome motors. I top out at 64mph.

EXCELLENT fuel economy
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Old 07-01-2006, 10:15 AM
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Default Re: Merc 250 Xs Info Needed

Strong, trouble-free and relatively quiet... great power!
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Old 07-01-2006, 01:47 PM
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Default Re: Merc 250 Xs Info Needed

Thank's For Your Help
Anymore Info On Them Please Let Me Know


Thank's
Mike
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Old 07-02-2006, 10:06 AM
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Default Re: Merc 250 Xs Info Needed

Any More Info
Thanks
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Old 07-02-2006, 05:54 PM
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Default Re: Merc 250 Xs Info Needed

Up until last year they needed 92 Octane to run. Merc detuned them a little and they 2005 on now run fine on 89 cotane.
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Old 07-02-2006, 07:44 PM
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Default Re: Merc 250 Xs Info Needed

is there any test that show's what fuel burn rate is at fuel "5800 rpm" throtle and say cruise" 4500 rpm "
just some type of idea.
what about engine hours how many before rebuild ??

thank's
mike
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Old 07-02-2006, 09:10 PM
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Default Re: Merc 250 Xs Info Needed

Quote:
Originally Posted by FeverMike
Speed and fuel burn all depend on the boat you put them on. There is a boat with twin 250xs Opti's in my neighborhhod it is a 30' center console and it runs 80.
Mike,
Those are good numbers. What boat are those Opti's on?

Russ
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