Thinking about upgrading to a new engine - Pensacola Fishing Forum

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Old 08-19-2015, 03:23 PM   #1
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Default Thinking about upgrading to a new engine

So I am considering upgrading to a new 4 stroke and was wondering about a few things.

1) I have a 200 hp yamaha 2 stroke now, should I go up in horsepower or stay the same?

2) My engine runs well and I am about to put a new lower unit on it, what could I get for my engine? Price wise. 1998 Yamaha Saltwater Series ii 200 HP

3) Thinking about putting the new engine on an 1997 21' Cape Horn, would it be worth the money to throw into it?

4) Any input is greatly appreciated. I saw a yamaha 4 stroke on here for sale and it sparked my curiosity
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Old 08-19-2015, 03:35 PM   #2
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What is the HP rating on that boat? 200 hp seems high to me, plus the extra weight of a 4-stroke may be a problem for ya.
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Old 08-19-2015, 03:41 PM   #3
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Think on that year Cape Horn the max is 250. Fished a 97 21 Cape Horn for several years and it had a 225 yamaha. is your motor carbureted or fuel injected? Most people will tell you that if you replace a good running two stroke for a new four stroke, that it will never pay for itself. Used May be another matter.
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Old 08-19-2015, 04:49 PM   #4
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Yeah, my boat is rated for a 250. The one that I have on it currently is a carbureted 200 Yamaha.

The one on the forum is used and not extremelyexpensive.
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Old 08-19-2015, 04:58 PM   #5
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I always try to stay at the lowest power of a series of engine. All they do is pump more fuel or and raise the RPMs to achive the increased power. Plus most of the time you cant use the added power because os sea state. Good luck.
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Old 08-19-2015, 04:59 PM   #6
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The best deal out there is the Yammy 4 stroke from Cap'n Davey. 200 HP for $6500. Better scoop it up now.
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Old 08-19-2015, 05:05 PM   #7
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If you have a great running Yamaha now, why replace it unless you are currently under powered? Just seems like a unnecessary purchase, I would think it would take a long time to recoup fuel savings, and you probably won't get your money out of it in the long run. I'd take the money and invest it somehow if I had the extra laying around. My .02.
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Old 08-19-2015, 05:13 PM   #8
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I am having to replace my lower unit now. I have been debating on either replacing the engine or buying a bigger boat. I go back and forth all the time. I never truly know what I want, this seems to be my biggest issue.
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Old 08-19-2015, 05:14 PM   #9
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Default Thinking about upgrading to a new engine

Here is easy math.

Say your typical edge run to bottom bump, you run 75 miles total.

Hypothetically, you currently get 1.5 mpg with your 2 stroke. This run costs you 50 gallons of fuel, let's say $150 if gas is $3 a gallon.

Your new 4 stroke gets you 2.5 mpg. Hypothetically, a 1 mpg increase. Your edge run now costs you 30 gallons of fuel, instead of 50. $90 in gas, a savings of $60 per trip.

Say you fish every weekend, 6 months out of the year. Which equates to 24 offshore trips a year. Which is a lot for a vessel of that size.

This saves you $1,440 a year in fuel if you actually fish that much.

Divide $6500 by that and you will pay for your engine in just under 5 years.

I know the numbers aren't exact, but if gives you an idea. You may save more than 1mpg with a 4stroke, someone here that has upgraded can probably give you real numbers.

Edit I forgot to add in the cost of yamalube or whatever oil you use, but it's nominal in the big picture.

Last edited by FenderBender; 08-19-2015 at 05:18 PM.
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Old 08-19-2015, 05:16 PM   #10
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Blaine. You should grab my Four Stroke Yamaha 200 asap! See Boat Parts for sale.
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