ENGINE
44mm Fuel Injection System
The adjustable fuel injection system uses a 44mm throttle body to ensure optimum fuel atomization and air/fuel calibration.
Adjustable Launch Control
A Launch Control System controlled through the Power Tuner App optimizes launches when the gate drops.
Bridge-Box Forged Piston
A forged piston features a bridge-box design for maximized strength with minimal weight.
Broad-Power 250cc Engine
The YZ250FX's 250cc four-stroke engine is renowned for broad, useable power and class-leading low-end and mid-range torque.
Centrally-Mounted Electric Starter
A compact, centrally-mounted electric starter system simplifies starting and minimizes restart delays for added convenience.
ECU Anti-Theft Lock
An ECU lock function through the Power Tuner App helps prevent theft and unauthorized engine start-up.
Four-Level Traction Control
Four-level Traction Control selectable within the Yamaha Power Tuner App maintains ideal rear wheel traction.
Handlebar Map Switchbox
Handlebar-mounted switchbox allows on-the-fly selection between two preloaded engine maps with the push of a button.
Heavy-Duty 15-Plate Clutch
The YZ250FX features a large-diameter 15-plate clutch to withstand the extreme demands of cross country racing.
High-RPM Power Components
Intake ports, cam profiles, high-strength connecting rod and optimized crank combine to produce potent high-rpm power.
Low-Friction Piston Assembly
The piston, rings and DLC-coated piston pin, along with the offset cylinder configuration, all reduce friction loss.
Mass-Centralizing Exhaust Design
An innovative exhaust pipe design improves mass centralization and power characteristics.
Power Tuner App Connectivity
Yamaha's industry-leading Power Tuner App allows owners to tune air/fuel mixture and ignition timing to suit their preference.
Simple Tuning Slide Bar
A “Simple Tuning” slide bar simplifies engine mapping within the Power Tuner App.
Wide-Range Six-Speed Transmission
A six-speed transmission ensures the right gear is available for the wide variety of terrain found in cross country racing.
CHASSIS/SUSPENSION
Adjustable Tapered Handlebar Mounts
Tapered aluminum handlebars are secured to four-position adjustable handlebar mounts.
Dunlop® Geomax MX33 Tires
Premium Dunlop® Geomax MX33 tires maximize traction while delivering excellent durability.
Hand-Adjustable Compression Knob
KYB® fork includes a hand-adjustable knob for easy compression adjustments.
Lightweight Durable Wheels
Strong, lightweight wheels reduce unsprung weight without sacrificing durability.
Optimized Rider Triangle
The rider triangle is improved with increased legroom between the seat and foot pegs for greater rider comfort.
Powerful Dual-Disc Brakes
Large 270mm front and 240mm rear discs combine with Nissin calipers to provide exceptional stopping power and control.
Slim, Rider-Friendly Bodywork
The YZ250FX's aggressive body design is slim, flat and eases rider movement for improved control.
Speed Sensitive KYB® Fork
Fully adjustable Speed Sensitive KYB® fork delivers exceptional balance between handling and bump absorption.
Stability-Tuned KYB® Rear Shock
A linkage-type rear suspension with KYB® shock is tuned to provide less pitch and improved stability.
Tuned Aluminum Bilateral Frame
An aluminum bilateral beam frame is tuned to provide the perfect balance of stability and cornering performance.
Wide 55mm Foot Pegs
Wide 55mm foot pegs provide additional control and comfort.
ADDITIONAL FEATURES
Embedded Durable Graphics
Premium competition-inspired graphics are embedded to provide excellent durability and scratch resistance.
Enduro-Ready Standard Equipment
Built for enduro with a 2.1-gallon fuel tank, rugged plastic skid plate, 18-inch rear wheel and sealed drive chain.
Tool-Free Air Filter Access
Sleek air cleaner cover provides tool-free access to the air filter for simplified servicing.
