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Thread: 2 stroke ain't dead yet....

  1. #41
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    Quote Originally Posted by Captain_Rightfoot View Post
    The first article makes no reference to direct injection 2 strokes so I would imagine it's old or just useless.

    I'm not sure how much you've been following the outboard market of late, but if all 2 strokes are to be banned then you better tell all the major manufacturers about it because their primary development and marketing focus is on direct injection 2 strokes.

    These motors use almost no oil, and less fuel than 4 strokes. As ever they are still lighter and cheaper than 4 strokes.

    You should look into them... they really use virtually no oil, and definitely less than a 4 stroke does if you include their oil change. As I said earlier, the e-tec range (and probably others) can operate indefinitely at reduced power settings with no oil.
    Real world figures from our club (owners not agents) show that one brand of the new injected two strokes matches the 4s for fuel usage but the others are still behind. You also have to use the synthetic oils to get the emissions levels they advertise, and if the user decides to change to a cheap oil, the computer has a setting which effectively doubles it's oil ratio, making the expensive oil not so expensive…. They all are however miles better than carby 2s.

    The 4s do suffer from high servicing cost and weight– I have 3 of them. The 4s are also more sensitive to prop selection and boat trim - it's got to be right to get the most out of them.
    For my tinnie (currently Honda) - I wish the little e-tecs were out when I set it up…
    L322 3.6TDv8 Lux

  2. #42
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    Quote Originally Posted by harlie View Post
    I personally think that someone who buys a carby two stroke outboard in today’s climate is a bit of a hypocrite. They go out to enjoy a pristine water-way and leave 1/3 of their oil in the water…..
    well said !
    well said indeed

  3. #43
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    Quote Originally Posted by Captain_Rightfoot View Post
    The first article makes no reference to direct injection 2 strokes so I would imagine it's old or just useless..
    Was using it to make the point that 2 strokes leave oil in the water!!!!!!! There fore it wasn't useless

    As for following boating, ummm not in this lifetime. If my fourby or bike breaks down I can walk home, if I crash it doesn't sink & the likely hood of getting eaten going home is next to nil......

  4. #44
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    Quote Originally Posted by harlie View Post
    Real world figures from our club (owners not agents) show that one brand of the new injected two strokes matches the 4s for fuel usage but the others are still behind. You also have to use the synthetic oils to get the emissions levels they advertise, and if the user decides to change to a cheap oil, the computer has a setting which effectively doubles it's oil ratio, making the expensive oil not so expensive…. They all are however miles better than carby 2s.

    The 4s do suffer from high servicing cost and weight– I have 3 of them. The 4s are also more sensitive to prop selection and boat trim - it's got to be right to get the most out of them.
    For my tinnie (currently Honda) - I wish the little e-tecs were out when I set it up…

    Mercury now claim their engines use 25% less fuel than e-tecs!
     2005 Defender 110 

  5. #45
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    Quote Originally Posted by twitchy View Post
    Was using it to make the point that 2 strokes leave oil in the water!!!!!!! There fore it wasn't useless

    As for following boating, ummm not in this lifetime. If my fourby or bike breaks down I can walk home, if I crash it doesn't sink & the likely hood of getting eaten going home is next to nil......
    From what I've seen people are almost exclusively buying injected two strokes or four strokes. So, it's largely irrelevant.
     2005 Defender 110 

  6. #46
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    Quote Originally Posted by Captain_Rightfoot View Post
    From what I've seen people are almost exclusively buying injected two strokes or four strokes. So, it's largely irrelevant.

    See this little dot-> . That's the point, I think you missed it....

  7. #47
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    Quote Originally Posted by Captain_Rightfoot View Post
    Mercury now claim their engines use 25% less fuel than e-tecs!


    Mercury have claimed that for several years now, they claim that the Opti uses less fuel than all the 4s as well... Our member's numbers tell a different story. Mercury is also the only manufacturer that will not allow the connection of fuel monitoring devices (voids warranty) other than their own - and will not allow sea-media to use their super accurate fuel meter during a test... There are also official emission figures for all outboards sold in aus and they also don't paint a good picture for Mercury. So if they use 25% less than e-tec why is their emissions nearly always double. I have them in hard copy, see if I can find them on the net and post.

    Outboard manufacturers can claim nearly anything. Bolt two different engines on the back of any hull, correct fit and prop on the black one and over prop, mount the white one low and yes - the black will win. I've never seen test result where the manufacturers engine who is hosting the test does not win, and win by an absurd difference. sorry marketing vs real numbers.... And they are all doing it. Evenrude claim the e-tec uses heaps less than the Merc... So does Yamaha. So does Suzuki And they all claim to be better than each other...

    On the other side Mercury win hands down for dealer support, I've had two, I wouldn't give them top marks for refinement though
    L322 3.6TDv8 Lux

  8. #48
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    Quote Originally Posted by twitchy View Post
    Was using it to make the point that 2 strokes leave oil in the water!!!!!!! There fore it wasn't useless

    As for following boating, ummm not in this lifetime. If my fourby or bike breaks down I can walk home, if I crash it doesn't sink & the likely hood of getting eaten going home is next to nil......
    Rule number 1- don't generalise. As stated by others 2 stroke fuel injection is very clean burning- its approved for use in the antarctic due to its negligable pollution.

  9. #49
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    Quote Originally Posted by Brian Hjelm View Post
    Try sitting in one on a hot day somewhere like the old Burringbar pull in the North of NSW. You nursed every rev to hit the bottom flat out to get a good go at the climb and by Murphy's Law, it seemed every time there was some ****** caravanner dawdling along admiring the view and forcing you down into the bottom of the box for a long hot drag up the hill at not much more than walking pace.
    I wish I had a dollar for every time I fell over the top of old Burringbar, northbound in a sub 200 hp banger. The right hander at the bottom used to kill the run up, particularly if there was southbound traffic, but you could get air under the bogie of a strap trailer on the decent.
    If you don't like trucks, stop buying stuff.
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  10. #50
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    Quote Originally Posted by DeeJay View Post
    Rule number 1- don't generalise. As stated by others 2 stroke fuel injection is very clean burning- its approved for use in the antarctic due to its negligable pollution.
    Clean but I bet it still leaves some even if if its a tiny bit, which means what???????

    Thalidomide was approved at one point

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