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NEW "Yamaha XTO Offshore 425hp" - SaltwaterCentral.Com
NEW "Yamaha XTO Offshore 425hp" - SaltwaterCentral.Com
NEW "Yamaha XTO Offshore 425hp" - SaltwaterCentral.Com
August 21, 2018 6:50 pm EST
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NEW "Yamaha XTO Offshore 425hp" - SaltwaterCentral.Com

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captainbean88
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PostPosted: Thu May 17, 2018 2:14 pm    Post subject: NEW "Yamaha XTO Offshore 425hp" Reply with quote

Anybody found and numbers on these things yet? Weight? Max RPM? Coming out on the yammy site on the 22nd if nothing before then... All I have found is patent info...

headset

https://yamahaoutboards.com/en-us/

readingXXX
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jupitersails
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PostPosted: Thu May 17, 2018 2:58 pm    Post subject: Reply with quote

roughly 1000lbs, 6000rpms, 45k msrp. pass  
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captainbean88
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PostPosted: Thu May 17, 2018 5:43 pm    Post subject: Reply with quote

jupitersails wrote:
roughly 1000lbs, 6000rpms, 45k msrp. pass


I've heard a few ppl say 850lbs. I'm curious as to why they went so large displacement wise when there are already ppl successful at pulling the same horsepower out of the 4.2's with an Eaton supercharger with very minimal problems... I agree that naturally aspirated is the way to go as far as longevity goes but you can only trust an engine so many hours if you are running offshore a lot...
  
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CW66
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PostPosted: Fri May 18, 2018 4:02 am    Post subject: Reply with quote

listed at 952lbs less fluids and prop.
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captainbean88
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PostPosted: Tue May 22, 2018 1:12 pm    Post subject: Reply with quote

Wowzers! I'm sure they'll still sell a ton of em, literally. Some men prefer bigger women anyhow... I'n not mercury crazy but I'm interested in hearing one of their new 4.6 v8's and see how they hold up.
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Praying for the day that no taxes exist and I can afford an Onslow Bay!

2017 Excel Bay Pro 220 / VF200LA VMAX SHO
2015 Little red book that puts me on a lot of offshore boats (OUPV)
2007 Key West 2020WA / BF150 Honda (SOLD)
2005 Landau WeldTek 1652m
  
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ScottK
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PostPosted: Tue May 22, 2018 1:53 pm    Post subject: Reply with quote

captainbean88 wrote:
Wowzers! I'm sure they'll still sell a ton of em, literally. Some men prefer bigger women anyhow... I'n not mercury crazy but I'm interested in hearing one of their new 4.6 v8's and see how they hold up.


Wife works in a factory on a line that make the new Mercury engine manifolds and fuel rail. Some of the stuff she sees let go is terrible. She said she is glad I have Yamahas and to NEVER buy a Mercury.
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werewolf0711
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PostPosted: Tue May 22, 2018 2:24 pm    Post subject: Reply with quote

The new merc 300 4.6L V8 naturally aspirated is heavier than the yamaha V6 4.2L 300 but no one wants to admit that merc failed there. The New 425 is a 5.6L V8. It's pretty close in weight to the seven marine engine and has several neat features but everyone wants to complain about the weight. Its a V8 for crying out loud and a big one at that. Of course it's going to be heavy. They designed it for a particular reason and they will sell the heck out of them as long as the 350 issues don't show up.
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captainbean88
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PostPosted: Wed May 23, 2018 2:15 pm    Post subject: Reply with quote

werewolf0711 wrote:
The new merc 300 4.6L V8 naturally aspirated is heavier than the yamaha V6 4.2L 300 but no one wants to admit that merc failed there. The New 425 is a 5.6L V8. It's pretty close in weight to the seven marine engine and has several neat features but everyone wants to complain about the weight. Its a V8 for crying out loud and a big one at that. Of course it's going to be heavy. They designed it for a particular reason and they will sell the heck out of them as long as the 350 issues don't show up.


I definitely like the fact that Yamaha went with a large displacement to reach this hp instead of boosting it somehow. I've grown up a gearhead and worked on anything from Geo's to 4000+hp pro mods. There is no replacement for displacement... When they take these smaller ci engines and pump up compression or add a blower it means one thing, shortened life for hard parts and bearings. I haven't researched the new Merc weight but the 4.2 yammy is where its at IMO as far as 300's go. I'm ready to hear these new 425's talk!
  
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