YZ250FX
- All-New Hare Scramble/GNCC® Racer
Based on the championship-winning 2019 YZ250F™, featuring Yamaha’s revolutionary front-intake, rear-exhaust, liquid-cooled, DOHC 4-stroke power plant with an added sixth gear, wide ratio transmission, and a range of cross-country upgrades, the YZ250FX™ is an “out-of-the-box” Hare Scrambles/GNCC® competition machine. - Yamaha Power Tuner App
Yamaha’s exclusive Power Tuner app puts the flexibility and precision tunability of the GYTR® Power Tuner into your smartphone. Make fueling and ignition timing changes instantly and upload them to the bike for the ultimate in track-side tuning. And for 2020, a handlebar-mounted map switch allows you to adjust preselected engine maps on the fly. - High Performance Engine
The engine is based on the championship-winning 2019 YZ250F, and includes all the same race-winning technologies. The cylinder head, exhaust system, fuel injection, drivetrain, electrical system and more were updated to offer improved power across the rev range. Together, the result is improved peak power, better power delivery, and even tougher durability. - Tuned Chassis
A new version the bilateral beam frame found on the YZ250F is utilized for the 2020 YZ250FX. The forged section at the swingarm pivot and engine mounting brackets provide a nimble lightweight feeling in the tight technical terrain while still providing control in fast sections. As always, Yamaha’s class-leading KYB® suspension ensures maximum control and traction. - Cross Country Features
With the electric starting system, a 2.16-gallon fuel tank, rugged plastic skid plate, 18-inch rear wheel and XC racing tires, the YZ250FX is ready to win right out of the box.
Engine
| Engine type | Single cylinder, liquid-cooled, 4-stroke, DOHC, 4-valves |
| Displacement | 250cc |
| Bore x stroke | 77.0 mm x 53.6 mm |
| Compression ratio | 13.5 : 1 |
| Maximum power | – |
| Maximum Torque | – |
| Lubrication system | Wet sump |
| Clutch Type | Wet, Multiple Disc |
| Carburettor | Fuel Injection |
| Ignition system | TCI |
| Starter system | Kick |
| Transmission system | Constant Mesh, 5-speed |
| Final transmission | Chain |
Chassis
| Frame | Semi double cradle |
| Front suspension system | Upside-down telescopic fork |
| Front travel | 310 mm |
| Caster Angle | 26º 50 |
| Trail | 118 mm |
| Rear suspension system | Swingarm, (link suspension) |
| Rear Travel | 315 mm |
| Front brake | Hydraulic single disc, Ø 270 mm |
| Rear brake | Hydraulic single disc, Ø 245 mm |
| Front tyre | 80/100-21 MS32 |
| Rear tyre | 100/90-19 MS32 |
Dimensions
| Overall length | 2,170 mm |
| Overall width | 825 mm |
| Overall height | 1,280 mm |
| Seat height | 965 mm |
| Wheel base | 1,475 mm |
| Minimum ground clearance | 330 mm |
| Wet weight (including full oil and fuel tank) |
105 kg |
| Fuel tank capacity | 7.5 litres |
| Oil tank capacity | 0.9 litres |
