Words: Trent Maher

Yamaha’s YZ250F has been a benchmark in the 250cc motocross class for many years now, so heading into the introduction of the 2027 model I wasn’t expecting a complete reinvention, but immediately you could recognise that the upgraded new variant is a significant step forward. Tested features our first impressions following the QMP national media launch.

The bike has already proven itself at the highest level, which meant the question wasn’t whether Yamaha had changed everything, it was whether the changes they had made – which you can learn more about in Detailed – would actually make a difference on the track. After spending a full day riding the new YZ250F at Queensland Moto Park, the answer is yes.

Image: Supplied.

Once you start putting laps together it’s easy to appreciate where Yamaha has spent its time. The updated engine feels stronger, the chassis – based on the latest YZ450F – is more refined, and the overall package is easier to ride than I expected. Plus, most will enjoy the hydraulic clutch that’s now fitted.

Coming into the world-first Australian launch, I thought I’d need to adjust my riding style. I ride a 450 most weekends, so jumping onto a 250F normally means carrying more corner speed, using the clutch more and making sure you’re always in the right gear. That adjustment never really happened.

Within a couple of laps I was comfortable, and before long I actually caught myself thinking, could I actually become ‘a 250 guy’? That’s how quickly the YZ250F won me over. From my first laps in completely standard trim, the thing that stood out most was the engine and the way that it delivers the power.

For me, the power delivery is incredibly linear. As a heavier rider, it felt a touch soft right off the bottom, which is exactly what I’d expect from a stock 250F, but once the revs started building, the torque came in and it just kept pulling. There wasn’t a point where it suddenly flattened out or signed off – it just kept making power.

That actually took a little bit of getting used to. A few times I found myself rolling off the throttle because I thought I’d reached the limiter, only to realise there was still more engine left. I had to retrain myself to leave it on the stop because the bike continued pulling much further into the rev range than I expected.

Image: Supplied.

What I liked most was how usable that power felt. There aren’t any aggressive hits or big spikes. It builds smoothly, keeps pulling and makes the bike really easy to ride. Around Queensland Moto Park there were sections where I expected I’d have to work the clutch pretty hard to get over the next obstacle, but I simply wasn’t having to work as much as I’d anticipated.

It still rewards good technique, as every 250F does, but it never felt like I was constantly chasing momentum, and that was probably my biggest surprise of the day. Later in the session I wanted a little more bottom-end response, so I bolted on Yamaha’s revised GYTR air-box intake and loaded a more aggressive engine map through the Power Tuner app.

I don’t make this statement lightly, but those two changes completely transformed the motorcycle for me. There was one tight right-hander leading into a step-up where, in standard trim, you had to get everything just right to clear it cleanly. After fitting the intake and changing the map, it genuinely felt like I’d unlocked another version of the bike.

We’re not talking about an expensive engine build or replacing major components. One bolt-on part and a simple mapping change made a noticeable difference straight away, and that’s something I think a lot of riders will appreciate. The Power Tuner app deserves a lot of credit, too.

Whether you simply want to choose between the standard, soft or aggressive settings, or dive deeper into the finer mapping adjustments, it’s all done from your phone. It also tracks engine hours and servicing, so it’s much more than just an app for changing engine maps.

Once I’d spent enough time getting a feel for the engine, my attention naturally shifted to the chassis, and this is where I started noticing another step forward. Historically, I’ve always found Yamahas to be incredibly stable once you’re in a corner, but sometimes they could take a little more effort to get there. I didn’t have that feeling on the new YZ250F.

Image: Supplied.

The bike tipped into corners willingly, held its line really well and inspired confidence to get back on the throttle early. Even with plenty of off-camber turns and braking bumps developing throughout the day, it remained planted without ever feeling reluctant to change direction.

That’s probably the biggest improvement I noticed with the chassis. Yamaha has managed to find a really good balance between stability and agility. Normally, if you gain one, you lose the other, but this new 2027 bike feels like it’s found the middle ground.

The KYB suspension package complemented that feeling well. For my weight, the standard settings were naturally a little soft, particularly once the braking bumps became more pronounced later in the day. I could feel myself using a lot of the suspension travel, but it never became unpredictable or difficult to ride. If you’re closer to the rider weight the bike is designed around, I think the standard settings will work extremely well.

One feature I really enjoyed was the new hand-adjustable suspension. Instead of pulling into the pits looking for tools, I could make clicker adjustments while riding down a straight and immediately feel the difference on the next section of track. It’s a small addition, but it makes experimenting with bike set-up much easier, especially for everyday riders.

That really sums up the whole philosophy behind the 2027 YZ250F. The upgrades aren’t just aimed at factory riders, because Yamaha has spent a lot of time making the bike easier for all to enjoy, whether that’s through the Power Tuner app, easier suspension adjustments, improved ergonomics or the finer details throughout the motorcycle.

By the end of the day, the biggest compliment I could give the bike was that I simply didn’t want to get off it. It was one of those bikes that kept inviting you back out for another lap. Coming into the launch, I expected I’d spend the day adapting to a 250F after riding a 450, but instead, I found myself wondering whether I’d actually like to own one.

For me, that’s about as strong an endorsement as I can give the new YZ250F.

Specifications

Engine type: 250cc, liquid-cooled, single-cylinder, four-stroke
Bore/stroke: 77.0mm x 53.6mm
Transmission: Constant mesh five-speed
Starter: Electric
Clutch: Nissin hydaulic
Traction control: Yes
Launch control: Yes
Front suspension: KYB speed-sensitive system inverted fork, 310mm travel
Rear suspension: KYB link suspension, 312mm travel
Front brake: Nissin caliper, 270mm front disc
Rear brake: Nissin caliper, 220mm rear disc
Tires: Dunlop Geomax 33
Weight: 107 kilograms (wet)
Availability: August 2026
Price: $15,049 RRP (Team Yamaha Blue), $15,149 (Monster Energy Yamaha Racing Edition)
Further information: www.yamaha-motor.com.au