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Old 11-04-2007, 02:00 PM
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Default Yamaha 4 stroke Vs Mercury Verado

I know the Yamaha 4-stroke 225hp only puts out 208hp, so what is the actual hp output for Yamaha F-250, Verado 275 & 300

I have been a Yamaha guy since 1989 and I will soon be in the mkt for a boat and I'm considering Mercury

Sooo whats the deal, I'm looking for real numbers....

Help me out
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Old 11-04-2007, 02:16 PM
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Default RE: Yamaha 4 stroke Vs Mercury Verado

There are many opinions out there, but from what I've read, the Yamaha 250's actually put out about 260. As far as the Verados, my experience is that everything Mercury tuns out makes its advertised numbers or more. Glen E can give you the stats. The Suzuki 300 is a good package and may offer the best fuel numbers as well.

One thing to consider with the Verados is that the powerheads sit about 8 inches father aft than most engines, so if transom weight is an issue for you, keep that in mind.
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Old 11-04-2007, 02:31 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

Consider which brand has the best local qualified service when making your decision.
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Old 11-05-2007, 09:22 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

Does anyone know the Actual power to prop hp numbers for these motors?
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Old 11-05-2007, 09:46 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

Quote:
Wahzoo - 11/5/2007 11:22 PM

Does anyone know the Actual power to prop hp numbers for these motors?
no..don't think I have ever seen them...it's all urban myth and heresay.....
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Old 11-05-2007, 11:04 PM
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Default RE: Yamaha 4 stroke Vs Mercury Verado

Quote:
Wahzoo - 11/4/2007 1:00 PM



I know the Yamaha 4-stroke 225hp only puts out 208hp, so what is the actual hp output for Yamaha F-250, Verado 275 & 300

I have been a Yamaha guy since 1989 and I will soon be in the mkt for a boat and I'm considering Mercury

Sooo whats the deal, I'm looking for real numbers....

Help me out
You can get the real "deal" from the data filed with the EPA for emission certification. See

http://www.epa.gov/otaq/certdata.htm#marinesi

You have to convert from kW to HP. The Yamaha F225 engine is rated at 208.3-HP. The Yamaha F250 doesn't seem to be listed.

The Mercury ratings are obscured somewhat in the listings because they don't have model numbers that are easily recognized. Here is an example:

Mercury Engine Family 7M9XM02.62G0, a four stroke outboard with 2598-cc displacement produces 275-HP at 6,100--We'll guess that is a Verado.
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Old 11-06-2007, 12:34 AM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

There might be something about the EPA measures or defines power output, or there might be differences in the way the companies interpret or report the results.

In the end, it comes down to real-life performance and side-by-side comparisons. Mercury has just published a lot of test results on their homepage.

The Yamaha and the Verado are probably both great engines. Choose one based on your own preferences and the local availiability of good service facilities.
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Old 11-06-2007, 04:19 AM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

This question is becoming more and more difficult. I am not in the market at the moment (said that before ) but I would have a tough time. Like wahzoo I have been primarily a Yamadog guy since '86, zero issues with motors or dealers in over 20 years, it'd be difficult to change... I like the current Mercury line up a LOT better than the current Yamaha line up.... More 2 strokes, and IMHO the Vrat has it all over the F200/225/250. I also really like the Etec motors.... I only dislike Suzy because I have been waaaay less than impressed with their dealer network...

The reason the decision is somewhat difficult is a good one, for the most part all these motors are trouble free. When there is a hic-cup, they plug in a laptop and it is diagnosed... Things are changing....
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Old 11-06-2007, 02:36 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

Interesting...

I wouldn't want to rely totally on the info put out by the manufactures for obvious reasons, (208/225). Like Afishinado, I like what I see and have been hearing about the Verado's, I don't even consider 2 strokes anymore, not that there is anything wrong with them, they just are not my thing anymore... To make a long story short, I was burned by a Mercury design flaw way back when, which is why I have been with Yamaha for so long. They are great motors and I have never had a minutes problem with them, but

IMO - If the back of a motor advertises 200,225,250 hp is better be that or more...

As far as service, out here on the West Coast there are only a few and alot of hacks, so I try to do most of my own service, ask Andy... The place nearest to me, 45 minutes away will only work on motors attached to the brand boats they hawk. As soon as I deviated from the brands they sell, I got kicked to the curb even though I purchased three boats from them in the past and had all my service done there, BIG BUCKS...

If there are any Mercury Factory guys on here, I would like to hear from them...

BW

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Old 11-06-2007, 03:19 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

i have seen 1 f 250 yamaha on a dyno & it was like 251.58 hp .Take it for what it's worth ...one engine one dyno..others maybe different. I have never seen a verado on a dyno but i sure like the way they perform. good luck
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Old 11-06-2007, 03:35 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

Quote:
Wahzoo - 11/6/2007 1:36 PM

IMO - If the back of a motor advertises 200,225,250 hp is better be that or more...
Every part of a motor and every part of a dyno have tolerances. Consequently the assembled motor or the assembled dyno will have variances. Some motors will create slightly more power and some will create slightly less power, and some dynos will indicate slightly more power and some will indicate slightly less power, than others.

Put a motor that has a power output on the low side, on a dyno that indicates on the low side, and the motor looks worse than it is.

It is an accepted industry practice to work off of standard values, while recognizing some of the same products will be plus and some will be minus. I seem to recall hearing that stated HP output was allowed to vary by plus or minus 10 percent. Not sure if this value is correct but, if so, a motor stated as 250 HP could vary as much as 225 on the low side and 275 on the high side (not that anyone is b1tching about a variance on the high side however it would burn more fuel).

From a real world perspective, most of the saltwater types generally don't cruise at WOT. In my case I cruise at whatever the sea state and my pocketbook will allow, but it is almost never at WOT. Does it matter then that my Yam F200 might not produce a full 200 HP if I am only using much less HP than that the majority of the time?
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Old 11-06-2007, 04:34 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

IMO - Forget the numbers - get out there and test drive them on comparable boats - Which performance do you like better? Buy that one. Simple.
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Old 11-06-2007, 04:58 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

Mako is correct - go run them, no other way to tell. I have had the fortune of running my boat with F250's and V 250's. They were both very strong and I was impressed with both. The only diff I could tell was the V had a bit more hole shot and the controls of the V are more refined. But both were propped with similar 3 blades and achieved the same top end speed. Similar MPG at cruise. There simply is not a bad motor in the 250 class these days....

It's all what you want out of a boat.....and certainly buy the motor that has the better service dept close by....
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Old 11-06-2007, 05:08 PM
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Default Re: Yamaha 4 stroke Vs Mercury Verado

Quote:
jethro1 - 11/6/2007 2:35 PM

Quote:
Wahzoo - 11/6/2007 1:36 PM

IMO - If the back of a motor advertises 200,225,250 hp is better be that or more...
Every part of a motor and every part of a dyno have tolerances. Consequently the assembled motor or the assembled dyno will have variances. Some motors will create slightly more power and some will create slightly less power, and some dynos will indicate slightly more power and some will indicate slightly less power, than others.

Put a motor that has a power output on the low side, on a dyno that indicates on the low side, and the motor looks worse than it is.

It is an accepted industry practice to work off of standard values, while recognizing some of the same products will be plus and some will be minus. I seem to recall hearing that stated HP output was allowed to vary by plus or minus 10 percent. Not sure if this value is correct but, if so, a motor stated as 250 HP could vary as much as 225 on the low side and 275 on the high side (not that anyone is b1tching about a variance on the high side however it would burn more fuel).

From a real world perspective, most of the saltwater types generally don't cruise at WOT. In my case I cruise at whatever the sea state and my pocketbook will allow, but it is almost never at WOT. Does it matter then that my Yam F200 might not produce a full 200 HP if I am only using much less HP than that the majority of the time?
You are correct.I have dyno'd my two 200 hp engines and there is right around 1.5 hp differense between the 2.
It does not matter what they show on the dyno as long as your happy with them that's what counts.
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