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Old 09-13-2010, 08:41 AM
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Default E-tec vs Yamaha 4-stroke fuel economy.

Looking to re-power my 28' Hydra-Sport CC. I've narrowed my options down to Yamaha 4-Strokes or Evinrude E-tec's. (Dual 250HP)

1. I currently burn around 1.3mpg at cruise with my DI Ficht motors. I've been told the E-tecs will be about the same as the older DI Ficht motors. Yamaha however claims my boat with two Yamaha's F250's gets almost 2mpg. Is there a significant fuel savings going with the Yamaha 4S over the E-tecs at cruising speeds?

2. I want a quieter idling motor, is the Yamaha significantly quieter then the E-tec motors at idling or trolling speeds?

3. Currently every 30-50 hours I have to replace my plugs. Lots of trolling and idling can cause them to fail. Is this still an issue with the newer E-tec motors or Yamaha 4S?

4. Typically 4-strokes are easier to sell then 2-strokes however are the E-tec motors an exception to this rule?

Since I will be switching to digital controls either way there would be no cost savings in reusing my current controls.
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Old 09-13-2010, 09:21 AM
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This post is coming strictly from my observance, no factual data and is my opinion only. I went with the Etec's and love them. I didn't buy new, but it was also a toss up between Yamaha 4 strokes and the Etec for me. I knew the exact boat I wanted and looked at alot of them and quite a few of them either had Yamaha 4 strokes or Etecs. It came down to three boats, two of which had Yamaha's. My observations were this.
1) Both were about the same in fuel economy.
2)Yamaha was just a hair quieter at idle. At cruise speed, the wind noise was more of a factor than the engine noise, I would say they were both about the same noise level.
3) Yamaha weighed slightly more, not significant....but put into the equation.
4)Cost of Yamaha oil changes vs using HD100 @ the proper setting in Etec was comparable.
5)Both are fine motors and comes down to more of a personal choice. Local mechanic to service to either becomes a much larger factor.

For me personally, I went with the Etec for a couple of reasons. After talking to a few people, I found more issues with Yamahas that weren't run as much (sparingly once or twice a month/50-75 hours a year). All motors work better with daily use, Yamaha's just seemed to have a few more problems from infrequent use. I'm leary of a 4 stroke over 10 years old where as I know tons of two strokes that are still running strong. Even though the motors I was looking at were relatively new, I plan on having them for a long time. If I were looking at boats, I would not buy a 10 yr old 4 stroke, but I would buy a 10 yr old 2 stroke.....figured that may help me sell the boat when the motors are 10 yrs old. If I were buying brand new today and selling in a year or two, I would lean towards the Yamaha....keeping the motors for many years, I would lean towards the Etecs.
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Old 09-13-2010, 09:57 AM
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Excellent post runabout - and just about what I was going to say. You might see a bit improvement over your old motors with the Etec's but not much. As stated everything is about the same except some guys that have had both think the 2 stroke is a bit more peppy. I personally don't want to do oil changes anymore, I can pour jugs just fine, but having a dealer do them will throw that out of wack as well.

His point about 10 yr old motors is spot on though, 4 strokes in general have not been out there long enough to begin to get to the 1000 hr timing belt and valve train adjustments and such - along with the possible failures without it. That is a big number, great for the guy that has had it for 8 yrs but knowing a $1500+ bill is coming due no matter what would seem daunting to a buyer - just like I/O's are great when new but nodody wants an old one. You don't really want to know what happens if a timing belt lets go

This one item has not yet crept into the 2 vs 4 arguement yet but it will in the next 5 yrs and may become the dominenet issue.
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Old 09-13-2010, 12:48 PM
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Originally Posted by luketrot View Post
Looking to re-power my 28' Hydra-Sport CC. I've narrowed my options down to Yamaha 4-Strokes or Evinrude E-tec's. (Dual 250HP)

1. I currently burn around 1.3mpg at cruise with my DI Ficht motors. I've been told the E-tecs will be about the same as the older DI Ficht motors. Yamaha however claims my boat with two Yamaha's F250's gets almost 2mpg. Is there a significant fuel savings going with the Yamaha 4S over the E-tecs at cruising speeds?

2. I want a quieter idling motor, is the Yamaha significantly quieter then the E-tec motors at idling or trolling speeds?

3. Currently every 30-50 hours I have to replace my plugs. Lots of trolling and idling can cause them to fail. Is this still an issue with the newer E-tec motors or Yamaha 4S?

4. Typically 4-strokes are easier to sell then 2-strokes however are the E-tec motors an exception to this rule?

Since I will be switching to digital controls either way there would be no cost savings in reusing my current controls.
1) No.
2) No.
3) No.
4) I have no data to support the resale argument.
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Old 09-13-2010, 12:58 PM
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1) No.
2) No.
3) No.
4) I have no data to support the resale argument.
I have a real world experience between these two brands. I rode on my partners boat ( exact model as mine but with a Yamaha 225 HP 4 stroke) for about 3 years and can tell you the above answers on on the money.

I went with the Etec because:

1. The boat I had had a Johsnon and so the repower was cheaper to do with an Etec.

2. Etec was a few thousand cheaper

3. They had a 5 year warranty- CLINCHER

4. I have a great authorized dealer 5 min from the house.

I think these 4 reasons overcome any future resale diffrence. Especially since I plan on keeping this rig in the family long term(will give it to my son when I move to a large cabin boat).
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Old 09-13-2010, 02:03 PM
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Yamaha's are more quite at all rpm ranges. Also the smell of two stroke exhaust drove me crazy while trolling.

Not bashing, just saying you will smell two stroke exhaust all day, and the etecs are louder.
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Old 09-13-2010, 02:07 PM
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Yamaha's are more quite at all rpm ranges. Also the smell of two stroke exhaust drove me crazy while trolling.

Not bashing, just saying you will smell two stroke exhaust all day, and the etecs are louder.
Simply not true. I troll for dolphin all morning and don't smell a thing. With my Old Johnson- yes! But not with the E-tec.

I think Yamaha make an awesome product but you can't say the Etecs are loud and smokey, just not accurate.
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Old 09-13-2010, 02:11 PM
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Not bashing, just saying you will smell two stroke exhaust all day, and the etecs are louder.
Wrong on both accounts. Yamahas are a great motor ... but please be accurate on your statements. I have over 700hrs on my 225's and haven't seen or smelled smoke once.
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Old 09-13-2010, 02:39 PM
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Not bashing, just saying you will smell two stroke exhaust all day, and the etecs are louder.
Not true. I have E-tec's and I absolutely love them, and NEVER smell a thing.
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Old 09-13-2010, 03:58 PM
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While I don;'t expect this to happen in the near future, it may be only a matter of time before large 2 stroke motors are no more. You can only do so much to make a motor that burns its oil emissions compliant. If that happens, you run into the same situation with 2 stroke outboards that you see with 2 stroke GM diesels, Lack of factory support and having to deal with substandard replacement parts. While a 2 stroke outboard may not have the durability of a 2 stroke diesel, I would think that most users are not going to put 2000 hours on an outboard in the next year or so, so it could become an issue at some point. Regardless of how good the engines are, larger 2 stroke gas engines will eventually be made obsolete by government mandate IMO.
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Old 09-13-2010, 04:00 PM
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Default Alll outboard motors leave a stink. Juz like cars..

I have 1200 hrs on my Yammie.

If you run more than 100 hrs a year you will incurr 3 oil changes the first yr and one a year after that. BTW. You are supposed to change the oil every 100 hrs or 6 mos. Or you might fall prey to the rusty motor syndrome. The motor does stink if the wind is blowing from astern. Just like when you follow some cars.. But not rotten egg stink just exhaust smell.

The motor is quiet at idle (under 1,000 rpm) anything above that gets loud.

I would rather burn the oil than change it every 100 hrs. I have spent $4,950.00 in repairs and maintenance on my yammy in 4.75 yrs. I hate the quarterly oil changes.

If my brand boat came with Etecs I would get Etecs.

4 stroke reliablity is overrated. Just look at the threads about motors.

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Old 09-13-2010, 04:06 PM
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While I don;'t expect this to happen in the near future, it may be only a matter of time before large 2 stroke motors are no more. You can only do so much to make a motor that burns its oil emissions compliant. If that happens, you run into the same situation with 2 stroke outboards that you see with 2 stroke GM diesels, Lack of factory support and having to deal with substandard replacement parts. While a 2 stroke outboard may not have the durability of a 2 stroke diesel, I would think that most users are not going to put 2000 hours on an outboard in the next year or so, so it could become an issue at some point. Regardless of how good the engines are, larger 2 stroke gas engines will eventually be made obsolete by government mandate IMO.
They may disappear in the US, but they will be available to the non-hippie countries.
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Old 09-13-2010, 04:34 PM
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While I don;'t expect this to happen in the near future, it may be only a matter of time before large 2 stroke motors are no more. You can only do so much to make a motor that burns its oil emissions compliant. If that happens, you run into the same situation with 2 stroke outboards that you see with 2 stroke GM diesels, Lack of factory support and having to deal with substandard replacement parts. While a 2 stroke outboard may not have the durability of a 2 stroke diesel, I would think that most users are not going to put 2000 hours on an outboard in the next year or so, so it could become an issue at some point. Regardless of how good the engines are, larger 2 stroke gas engines will eventually be made obsolete by government mandate IMO.

So if 4 strokes are so much cleaner burning, why is that my Optis are CARB 3 Star rated... just like Yamaha 4 strokes? I like 4 strokes and they have their place, but some of you guys just go a little overboard with the "2 strokes are dead thing". 2 strokes will be around just as long as there are boats that won't handle the weight of 4 strokes.
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Old 09-13-2010, 04:36 PM
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They may disappear in the US, but they will be available to the non-hippie countries.
LOL....only of you are interested in living and boating in the third world.
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Old 09-13-2010, 04:39 PM
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i would not expect and improvement in Fuel economy with the yamahas over the etecs. The etecs are very good, and as other have stated you will not have any 2 stroke smell at all. i would vote for the etecs, but if really wanting a 4 stroke i would look at the suzukis also.
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Old 09-13-2010, 04:41 PM
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So if 4 strokes are so much cleaner burning, why is that my Optis are CARB 3 Star rated... just like Yamaha 4 strokes?
Because both Yamaha and Mercury only have to attain CARB 3 emmissions levels for now. Are you trying to say that a 2 stroke, whihc has to burn crude oil as part of the fuel mix is as easy to clean up as say a direct injected four stroke? If that was the case then Mercury probably wouldn't have introduced their 4 stoke line. Even if you can get 2 strokes to meet the next level or two of emissions standards, at some point it becomes too much trouble. Just ask Porsche how that whole air cooled flat six thing went back in 1999. You must also take this into account. At some poiint, they government may say that dirty, smelly two strokes are evil, even if the manufacturers are willing to continue putting a ton of money into making them hit that moving target that are emissions standards. As for the comment about two stokes exiting until there are no more boats that can't handle the weight of a four stoke, I say the government is not concerned with your convenience nor are the motor companies interested in producing obsolete technology that has no place in the new boat market. Like I said, we are not there now, but there is a fair to middlin' chance that we will be within 10 years. IMO, OMC cameout with what is, by all accounts, a really good engine, but they may have knocked themselves out of the market in the long run by not embracing 4 stroke technology.
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Old 09-13-2010, 04:42 PM
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So if 4 strokes are so much cleaner burning, why is that my Optis are CARB 3 Star rated... just like Yamaha 4 strokes? I like 4 strokes and they have their place, but some of you guys just go a little overboard with the "2 strokes are dead thing". 2 strokes will be around just as long as there are boats that won't handle the weight of 4 strokes.

how many where sold in California?
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Old 09-13-2010, 04:44 PM
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I really don't think you can go wrong with either one. I have Yamaha's, my friend has E-Tec's. They both have their good points and "bad "although I don't think either of the have any down side. For fuel economy I guess it's all in how hard you work them, right? I tend to cruise and my friend runs almost wide open everywhere. I guess it would come down to total price with rigging and what warranty deals they are running at the time.
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Old 09-13-2010, 04:45 PM
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ive had 1 yamaha 4stroke and 2 etecs. i etec burned the number 1 piston at 600 hrs. cost to fix was 9k!!!! so i bought another etec. aside from that issue (wich was a huge issue) they are great motors make way more power then the yamaha.also at cruise i think the etec is quiter.at idle no contest the yamaha is quieter.also the etec is better on fuel at idle and troll. i dont think you could make a bad choice though either way you will have a great motor.
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Old 09-13-2010, 04:48 PM
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how many where sold in California?
Good point. A we have discovered with diesel cars, being "50 State complaint" means that you have to meet the standards of Krazy Kalifornia. With the current administration, I don't see that changing and the more likely scenario is that everyone else will be "brought up" to California standards and beyond as time wears on..........or Euro 5 if you will.
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