Fuel Savings - 2-stroke to 4-stroke ??

Sheppy

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I’m tentatively looking for another outboard engine for my 19’ Sport Cruiser. I have a great 2002 2-stroke 115 V4 Yamaha and have but two issues:
Firstly is the fuel cost; although not huge, I’d like to look at a four stroke as they seem to offer better economy by as much as 30% - quite a saving, if true .
Secondly, when trawling up and down the river, I do notice the 2-stroke smoke/smell.

Although I’m not a fast boater and have little or no interests in waterskiing, I do go out to sea quite a bit too and still like the feel of a decent motor, so I’m not look at anything less than a 115.

I’ve started to look at pre-owned engines with the view that I might be able to buy a decent 115 4-stroke for the same money that I get for my 2-stroke. It appears that many out there are less concerned about the fuel costs etc. and just want as much power with as little weight as possible, so there seems to be a reasonable market for mine. But I’ve started looking at newer models (as one does) and I’m now quite interested in the Evinrude V4 115/130 E-TEC range as the weight is the same for both, also the Tohatsu TDLI engines too. These are 2-stroke engines that now confirm to the strict emissions laws and are therefore allowed to be sold to the public for leisure use. They both sound quite amazing engines and claim to offer the same fuel efficiency as 4-strokes but with a lighter weight, better performance and are only marginally louder. Before I go and spend a huge amount of money, I wanted to get some feedback on what others had done to save fuel and whether these new 2-strokes E-TEC’s and TDLI’s are really worth it or whether I should stick to a 4-stroke?
 
You also need to remember that a new 115 Four stroke will perhaps weigh 185 kilos need to find out what your 2 stroke weighs and consider if the extra weight you carry around will be worth it, also is it really worth spending more. It seems to me that older outboards are worth nothing in PX, have you got a price to swap yet
 
You also need to remember that a new 115 Four stroke will perhaps weigh 185 kilos need to find out what your 2 stroke weighs and consider if the extra weight you carry around will be worth it, also is it really worth spending more. It seems to me that older outboards are worth nothing in PX, have you got a price to swap yet

the difference in swapping engines + the higher service costs of a 4 stroke will buy a load of fuel
 
Before I go and spend a huge amount of money, I wanted to get some feedback on what others had done to save fuel and whether these new 2-strokes E-TEC’s and TDLI’s are really worth it or whether I should stick to a 4-stroke?

We run boat trips with a big Yam on a rib
Plus the same boat gets used for training peeps
Research has shown that although a four stroke in some cases will be more frugal for Our usage said motors don't suit
I have helmed and used all sorts of small power boats this last few years
Findings have been thus
16 to 22 footers used for your average motorboating
Yep I would use a mid range four stroke
As you go bigger the equation changes
Bigger vessel bigger motor obviously
Now the big four strokes are heavy beggars as peeps have pointed out
Definately look and consider the 'E Tech' range
They are amazing bits of kit imho
Power to weight ratio is good
Fuel consumption is on a par with four strokes
Servicing is every 300 hours!!!
3 year warranty
Quiet
Virtually smokeless
Our next passenger rib will have one attached
Because we run a Commercial operation
IE -- Trips -- Training and a Boat Club type syndicate
The boats have to work hard and be reliable
The next boat we are getting has a well known Pedigree
Plus a 225 hp Evinrude E Tech
They are rather unique lumps
Yep , you have to use the correct oil
Taint cheap but you won't use much anyway
I would go for an E Tech
 
The Evinrude etec is the best choice by far IMHO.

They are powerful, quiet, smokeless and light. We had 1 on an 18ft centre console and it was fantastic.

The only down side was the cost of oil.
 
Had an Etec on my last small boat and now a Mercury 150 Optimax on a RIB, both excellent engines, but on balance I'd definitely choose an Etec for the next boat. Starts first time every time, economical and a great sound!
 

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