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Old 25 December 2006, 08:29   #31
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that statement is part of the idea of the 2 stroke, cuzz the outboard has a bracket , a foot and a mid section ect. the full statement does not come out like that.

could make 115hp at a 100kg and less,

could build 230hp @ 100kg , but user friendly, more like miss-be-haven.
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Old 25 December 2006, 16:33   #32
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Originally Posted by fast fred View Post
thinkin half the Weight and twice the Power had and still has a big bunch to do with it.

Big bunch to do with what?

Honda BF225 4S: 588 lbs
Suzuki 225 4S: 470 lbs
Yamaha F225: 583 lbs

Merc Opti 225: 497 lbs
Yamaha Vmax Opti 225: 539 lbs
Evinrude HO E-tec 225: 509 lbs

I see neither half the weight, nor twice the power; most certainly not both together.

jky
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Old 25 December 2006, 18:48   #33
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Big bunch to do with what?

Honda BF225 4S: 588 lbs
Suzuki 225 4S: 470 lbs
Yamaha F225: 583 lbs

Merc Opti 225: 497 lbs
Yamaha Vmax Opti 225: 539 lbs
Evinrude HO E-tec 225: 509 lbs

I see neither half the weight, nor twice the power; most certainly not both together.

jky
Where did you get 470lbs for the 4 stroke suzuki? - it's more like 580lbs.

My suzuki 225 2 stroke weighs 470lbs!!!

The new Mercury 300hp 2 stroke weighs 517lbs against the Verado 275 at 650lbs.
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Old 26 December 2006, 07:06   #34
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hows about a 2.5 OS Horn Moda, 440lbs 312hp@9500rpm.
once again they All have a foot and a bracket ect.
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Old 26 December 2006, 08:22   #35
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Guess that is hardly a mainstream motor though?

Going on the weight of what I am interested in (115hp), you're talking 190-ish kilos for a four stroke and the Johnson I have weighs about 150 so that's about a 25 percent weight saving with the 2 stroke, but I would rather have a 4 stroke that runs like a sewing machine and burns less fuel, and carry an extra 1/2 person around for that privilege

I wouldn't completely rule out one of the new generation 2 strokes but it does seem that people that want reliability (i.e. commercial operator) go for 4 stroke every time and reliability is my main priority given the remoteness from anybody who knows what to do with a modern engine if it breaks!

Edited to say that according to the makers the Opti 115 and Etec 115 both tip the scales at 170 kg so the difference is only the weight of a full jerry can when you compare modern engines
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Old 26 December 2006, 08:26   #36
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could stack two 2.5 power heads on the same tower for 624hp @ about the same as the Honda, the Honda 225hp, Oink
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Old 26 December 2006, 10:36   #37
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could stack two 2.5 power heads on the same tower for 624hp @ about the same as the Honda, the Honda 225hp, Oink
Now that would be interesting!
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Old 26 December 2006, 11:28   #38
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Bet it's been done, think they were side by sides, the gear box to bring the cranks to the shaft would add mo weight, so stackin them would keep the lbs down.
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Old 26 December 2006, 13:25   #39
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Where did you get 470lbs for the 4 stroke suzuki? - it's more like 580lbs.
Off the Suzuki website.


Quote:
The new Mercury 300hp 2 stroke weighs 517lbs against the Verado 275 at 650lbs.
And that is a factor of 2 in what regard?

jky
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Old 26 December 2006, 18:18   #40
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Off the Suzuki website.




And that is a factor of 2 in what regard?

jky
You picked up the info for the DT225 not the DF225......

And I never mentioned a factor of 2!!!

Still a good weight saving with the 2 strokes - especially if you have 2 hanging off the back. As to fuel economy everyone said my DT225 would be very thirsty - I seem to get the same figures as the people with the 4 strokes .
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