Key performance
Technical specifications
Engine
- Displacement
- 250 cc
- Power
- 32.0 ch (23.5 kW)
- Engine type
- Single cylinder, four-stroke
- Cooling
- Liquid
- Compression ratio
- 13.8:1
- Bore × stroke
- 77.0 x 53.6 mm (3.0 x 2.1 inches)
- Valves/cylinder
- 4
- Camshafts
- 2 ACT
- Fuel system
- Injection. Mikuni fuel injection, 44mm
- Valve timing
- Double Overhead Cams/Twin Cam (DOHC)
- Lubrication
- Wet sump
- Ignition
- TCI: Transistor Controlled Ignition
- Starter
- Kick
Chassis
- Frame
- Bilateral beam aluminum frame
- Gearbox
- 5-speed
- Final drive
- Chain (final drive)
- Clutch
- Multiplate wet clutch
- Front suspension
- KYB speed-Sensitive System, inverted fork: fully adjustable
- Rear suspension
- KYB fully adjustable single shock
- Front wheel travel
- 310 mm (12.2 inches)
- Rear wheel travel
- 318 mm (12.5 inches)
Brakes
- Front brakes
- Single disc. Hydraulic.
- Rear brakes
- Single disc. Hydraulic.
- Front tyre
- 80/100-21
- Rear tyre
- 100/90-19
Dimensions
- Seat height
- 965.00 mm
- Wheelbase
- 1476.00 mm
- Ground clearance
- 335.00 mm
- Length
- 2174.00 mm
- Width
- 826.00 mm
- Height
- 1285.00 mm
- Fuel capacity
- 6.06 L
- Weight
- 106.10 kg
- New price
- 8 499 €
Overview
Can a motocross bike be both a ruthless competition tool and an easy-going companion? With the Yamaha YZ250F, the answer bursts from the exhaust: a frank and massive yes. Consider the 2020 model, a pivotal step that solidified its reputation. Here, we're not talking about a simple evolution, but a complete recalibration of the Japanese quarter-liter philosophy. Proof? The long-awaited electric starter has arrived, a revolution for those tired of playing acrobats on descents. It's not just a matter of comfort; it's a strong signal: Yamaha wants a race weapon that doesn't make your life miserable in the paddock.

The heart of the beast, this 250cc four-stroke single-cylinder engine, has been completely redesigned. We're talking about a new cylinder head, a forged piston, and a reworked camshaft. The result? Power that develops with exemplary linearity, favoring mid and high RPMs where victories are won. With approximately 32 horsepower announced, it competes with its direct rival, the Honda CRF250R. But the YZ250F has that little something extra, a capacity to get angry cleanly when you open the throttle, without ever becoming nervous or unpredictable. It is this reliability and progressiveness that make it a choice mount, whether you're aiming for a local championship podium or simply seeking the most accomplished four-stroke motocross bike to progress.
Where the machine really makes a difference is in its chassis. The bilateral aluminum frame has been reworked to offer an almost perfect balance between rigidity and flexibility. The weight, contained to 106 kg fully fueled, is centralized with a mastery that commands respect. On the track, this translates to a bike that hugs corners with tenacious grip, as if it's sucking up the dirt. The generous ground clearance and studied wheelbase give straight-line stability that inspires incredible confidence when attacking crests. Coupled with fully adjustable KYB suspensions of remarkable finesse, these qualities make the 2020 YZ250F one of the most manageable and predictable bikes in its class.
But the real stroke of genius is the electronic equipment. Being delivered with the Power Tuner application and an integrated communication unit was unprecedented in series at the time. This transforms your smartphone into an ultra-high-performance tuning box. Adjusting the injection/ignition mapping, monitoring temperatures, recording race data… it's a monumental asset for the demanding rider who wants to refine their mount. Compared to a KTM 250 SX two-stroke, which is more lively and nervous, the Yamaha YZ250F focuses on precision, consistency, and the ability to forgive. Its 6-liter fuel tank may seem tight, but that's the price of compactness.
Ultimately, who is this Yamaha YZ250F for? For the serious racer who wants a reliable and incredibly evolvable workhorse. For the enthusiast seeking the most technologically advanced four-stroke motocross bike, without the hassles of a two-stroke. Its price, around 8500 euros new at the time, made it a significant investment, but justified by its level of completion. Today, looking for a used Yamaha YZ250F, especially a 2020 or 2021 model, is an excellent idea to acquire a machine that is already modern, reliable, and ready to fight. Whether you're drawn to Yamaha YZ250F 2024 accessories to personalize it or a Yamaha YZ250F deco kit to make it unique, you're starting from a solid base. It's a machine that doesn't cheat, a true partner that has helped forge legends in MXGP and Supercross. It's not the most brutal, but it's very likely the smartest.
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