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Only $10 for all 2026 SX, MX, and SMX series.
It will be at pits Anaheim 3 because thats matching 3(00).
Funny how no one ever mentions all the other precision parts that will eventually need replacing in the F1 4T engines - oil pumps (and if that pump fails you're pretty much looking at total engine replacement), valve train (with motion transfer parts), worn out/damaged heads, etc., etc. This is why they are essentially disposable dirt bikes - they reach a point where it costs far more to rebuild them than what they're worth... and this is part of the sales plan. The OEMs make much more on them than 2Ts.
A2 would of been perfect night to release new 2 stroke after Sextons win
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Not thinking about a piston change at 100 hrs on a 450 is not an accurate statement.
This is honestly pathetic at this point.
what about 4T valve adjustment, shimming, replacing?
BTW: 2T piston kits average $100.00 all day every day on internet.
^^^ Namura kits?
OEM Yamaha kits
116 on RM for a '26 YZ250 is pretty dang close, at that cost, no reason not to have a fresh top end well within factory specs per manual instead of anecdotal internet hours.
Agree. To me, for non racers, the YZ 250 is the ultimate bike in every single aspect. Hence why I ride one
Uses a lot more fuel than a 450. and you probably have to use more expensive gas.
I ordered 5 Wossenener pistons from Milenim Technologies last yr. Under 500 bucks shipped with spare rings. High end pistons with a coating.
At 100 hours the OEM piston was .0005" above the service limit on my 2018 CRF450RX GNCC bike. Replaced with Wiseco. At 100 hours, the Wiseco piston was .0008" under the service limit. Went back to stock pistons.
Especially if you're fast enough to be changing pistons on a 250 two stroke at 30 hours. I was doing 50 hour intervals on a KTM 150sx. 70-80 on a 250sx seems fine. I also don't overrev it to the moon and bang off the gears/clutch. For the average vet/C class rider, 30 hour top end intervals on a 250 two stroke is ridiculous.
Yes. And no. I run pump gas. However you have to be perfectly jetted, otherwise you are asking for detonation. Lastly, I agree that 450s are cheaper to maintain if you plan on selling them before doing some major engine maintenance, but I do not ride a 2 stroke because of maintenance costs, simply because I have the most fun on them.
That is true, and it sucks to always have to pick up pre mix so you have it (I always forget it). But you do get to save some fuel by telling you're buddies your can has premix in it so you can't fill their bike or truck lol.
Not saying it can't be done, know KTM 450 riders that go twice that but one shoe doesn't fit all.
Pit Row
Um, kawis definitely dont make it 100 hours without visible blowby out the vent hose from what I have seen lol
On pulp tonight, Steve said he saw a photo of it and got some details.
Kawi employees were in California testing out new models last week..
pretty sure we've already figured out it's gonna be a 300
I wonder if the frame will be steel or aluminum... The latter, esp if shared with the existing KX four strokes could keep costs down.
Sounds like we'll find out real soon.. can't wait to hear more from Matthes
Did Matthes say when he would be able to discuss it?
All that wait for 2T and while I get the updated mini's are awesome; coming out with a new frame and KYB is sick, but bolt on parts as a flex shouldn’t have been delayed. After that lapse, I was expecting a lot more on the mini updates.
Well if Kawi has actually made a 250 or 300 2 stroke, they better get on with revealing it. And what better way than to have Sexton ride it during opening ceremony in Supercross? And take a lap with it. Pretty awesome way to debut a bike revival by pinning it through a set of whoops.
I see they just revealed new 85, 85L, and 112 bikes. That better not be the only 2 strokes..
^Nope. My source confirms a big bike, still slated to be a '27 model. It runs and is in testing now, so it should be good to go by the time of a standard release date. (Late summer or fall of this year, I would guess.) I don't know the CCs, but unless they changed the model drastically or added a new version, it will not be a Motocross bike. Think "woods/desert."
It won't be...
Go on…
Heard a while back they used the 250 chassis, so yes aluminum
Post a reply to: Kawasaki is bringing the two stroke back!