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Old 18 October 2011, 09:02   #11
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Country: Netherlands
Town: groningen
Boat name: tess, searanger
Make: sailer, avon 5,4
Length: 8m +
Engine: inboard, suzuki 90
Join Date: Jul 2010
Posts: 95
90hp suzi

I have a 90hp suzi driving my SR5,4 and know lots of people who sail them it's very fuel efficient super and quiet (has a lock on it to prevent re starting!!!)
14'x21' prop should do the trick really well.
Engine weighs 158kg

Yam 2 stroke 90 is super to but nog new available and i would make the same decision again.

see on Avon Searider - Home for few pics (look at member Rob Ubels)

115 is possible to faster but you hear it guzzling the fuel. (almost above the engine noise)
130 should go to but to crazy and to fast wouldnt do both

just take a 90 4s suzi or 90 2s yamaha
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Old 19 October 2011, 17:21   #12
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Country: USA
Town: Santa Barbara, CA
Boat name: Searider 4m + 5.4m
Make: Avon
Length: 5m +
Engine: Outboard
Join Date: Jun 2009
Posts: 57
I just repowered my 5.4 this summer with a new Yamaha F70LA 4 stroke. I couln't be happier with the engine as it is lighter and smaller than the old 2 stroke merc 70 i replaced. I have a pilothouse on my boat and even with 2 people, surfboards and gear for the weekend, i still hit 29-30kts which is plenty for ocean running. The engine is quiet and quite good on fuel, i get 6-7 nm/gallon.
I read yamaha redesigned this engine as there are a lot of boats out there that were conceived for a 70 2stroke that suck with the extra weight of a 4 stroke, so they pulled tons of weight out.
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Old 19 October 2011, 17:25   #13
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Country: USA
Town: Santa Barbara, CA
Boat name: Searider 4m + 5.4m
Make: Avon
Length: 5m +
Engine: Outboard
Join Date: Jun 2009
Posts: 57
F70 is 118kg

http://continuouswave.com/whaler/ref...70HotSheet.pdf
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Old 21 October 2011, 16:10   #14
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Country: Sweden
Boat name: -
Make: XS 545
Length: 5m +
Engine: Yamaha 70hp 4stroke
Join Date: Aug 2011
Posts: 34
That weight was the reason I choose Yam 70 for my new XS 530
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