Upgrade to enjoy this feature!
Vital MX fantasy is free to play, but Premium users receive great benefits. Premium benefits include:
- View and download rider stats
- Pick trends
- Create a private league
- And more!
Only $10 for all 2026 SX, MX, and SMX series.
https://www.instagram.com/reel/DZIB8MAhylD/?igsh=MWh5Yzk2cHc0bm5uOQ==
Yam releasing this a day after the KX327 news, and receiving about 1% as much interest...
Just like the 26 YZ450, everyone will be swapping out the intake funnel, muffler, and ECU to get it back where it belongs. No worries. Have to undo all these ridiculous sound measures that are the stock bike for some unknown reason because of Pro/FIM sound limits.
Yes that is very true. And to some extent, a lot of vet guys on 250Fs are doing an ECU and exhaust etc anyways, so it's just a few more things that will need attention (airbox and funnel etc.) That being said, it's not so much the amount of power, that I am worried about. I think it's more that I'm assuming as a stock bike, Yamaha maybe didn't think they could get the air velocity any longer, to make it run like the prior engine. So they decided to shift to the new head style and make it more of a top end screamer, like the KTM. So I will be a bit bummed if that is the case, because I really do love the character and power profile of the older bikes (especially the 21-23.) And as I mentioned, I think that response, recovery and ability to pull a higher gear was the allure of that bike. So if that goes away, then I may start swinging back towards thinking about a 450 again. I'm sure it'll still be a great bike, but I think the YZ250F had it's own little niche market of vet guys who liked that unique power and now it sort of seems like it may be more in line with a "typical 250F" power profile.
The Shop
Luxon 4-Post Bar Mounts
$189.95 - $239.95
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Free shipping: VITALMX
The 450 lost over a pound on the new style clutch with the steel basket.
I’m curious too why the pic shows shim under bucket when the release says finger followers. Did they really only do it on one side or is that the wrong pic? Why would they show a cutout of that side vs the side with the updated valvetrain?
Here's a motion graphic that shows the intake side from the Yamaha site:
https://www.yamahamotorsports.com/media/video/MY27_YZ250_Hero.mp4
I’m curious to see the reviews that compare the ‘27 to the ‘26. I really like this gen motor. How is the feel of the hydro clutch? Is the change to the brakes noticeable? Is bottom end the same or power shifted up in the rev range?
The new clutch assembly with the steel basket was one pound lighter than the old assembly with the aluminum one or the bike was one pound lighter overall and had the new clutch assembly? 🤔
The clutch lost a pound, bike lost 5 pounds overall.
Then I'd attribute it to the redesign and not the material (obviously).
Yamaha is suffering from success. Everyone knows how good the YZ250f is already.
"Shiny Things" syndrome.
Pit Row
Post a reply to: 2027 Yamaha YZ250F, All-New Engine