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Old 06 October 2014, 19:19   #1
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Economical old 2 stroke

Evening all

I'm looking to replace the 1995 yamaha 115 v4 on my ribtec 535.

I would like as many opinions as poss for what you consider to be the most economical 1980s /1990s 65hp - 90hp 2 stroke outboard ?

Thanks in advance.
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Old 06 October 2014, 19:29   #2
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85/90 yamaha we once traded up to a 115 20 odd years ago & didn't know how quick to trade back down to another 85 when we realised How thirsty the v4 was compared to the 3 cylinder
You might find something more economical than an 85/ 90 yam but you won't find a better engine
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Old 06 October 2014, 19:34   #3
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Originally Posted by beamishken View Post
85/90 yamaha we once traded up to a 115 20 odd years ago & didn't know how quick to trade back down to another 85 when we realised How thirsty the v4 was compared to the 3 cylinder
You might find something more economical than an 85/ 90 yam but you won't find a better engine
Everything is pointing toward the yam 90, Is it much more efficient than the 115 ?
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Old 07 October 2014, 00:50   #4
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"economical" "old" & "2 Stroke" ain't words that often crop up in the same sentence.
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Old 07 October 2014, 01:24   #5
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I had a Yamaha 85 hp for a couple of years. Ran like a sewing machine and to be fair I never thought it was that thirsty....!

The 135 Mariner I'm running now is THIRSTY, especially on full chat but I love the noise.
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Old 07 October 2014, 03:53   #6
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"economical" "old" & "2 Stroke" ain't words that often crop up in the same sentence.
Damn you beat me to it - my sentiments exactly
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Old 07 October 2014, 04:19   #7
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Our late 90's Mercury 3cyl 90hp always seemed quite good on fuel. Certainly in comparison to our current 5.7L V8 its certainly no worse! Not sure if thats a good thing though
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Old 07 October 2014, 04:27   #8
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Yam 90 2 stroke Probably the best old 2 stoke for power to weight ratio and reliability
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Old 07 October 2014, 05:58   #9
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"economical" "old" & "2 Stroke" ain't words that often crop up in the same sentence.
Yep your right but it's relative a 3 cylinder yam next to a v4 is frugal by comparison
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Old 07 October 2014, 11:29   #10
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Thanks for all the advice,
So are you saying that the Yam 90 is a better engine than the yam 115 but with no improvement on the fuel efficiency.
If so I should maybe be looking for something smaller, I have been offered a 90s Mariner 75hp and a 90s Suzuki 65hp.
Are either of these likely to be more efficient ?
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