2021 Yamaha YZ250
2021 Yamaha YZ250

Specs

General Information

Manufacturer
Yamaha
Yamaha
Model Year
2021
2021
Model
YZ250
YZ250
Model Code
YZ250M2
YZ250M2
Color
Team Yamaha Blue
Team Yamaha Blue

Brakes/Wheels/Tires

Brakes

Front - Hydraulic disc, 270 mm

Rear - Hydraulic disc, 245 mm

Front - Hydraulic disc, 270 mm

Rear - Hydraulic disc, 245 mm

Tires

Front - 80 / 100-21 Dunlop® MX52

Rear - 110 / 90-19 Dunlop® MX52

Front - 80 / 100-21 Dunlop® MX52

Rear - 110 / 90-19 Dunlop® MX52

Dimensions

Length
85.7 in.
85.7 in.
Height
51.4 in.
51.4 in.
Width
32.6 in.
32.6 in.
Weight
Wet - 227 lb.
Wet - 227 lb.
Ground Clearance
Maximum - 14.2 in.
Maximum - 14.2 in.
Wheelbase
58.3 in.
58.3 in.
Seat Height
39.1 in.
39.1 in.

Drivetrain

Transmission
Constant-mesh 5-speed
Constant-mesh 5-speed
Final Drive
Chain
Chain

Engine

Engine
2-stroke; Reed-valve inducted
2-stroke; Reed-valve inducted
Cooling
Liquid
Liquid
Displacement
249 cc
249 cc
Bore x Stroke
66.4 x 72 mm
66.4 x 72 mm
Compression Ratio
8.9 ~ 10.6:1
8.9 ~ 10.6:1
Clutch
Multi-plate wet
Multi-plate wet
Carburetion
Keihin® PWK38S
Keihin® PWK38S
Ignition
CDI
CDI
Fuel Capacity
2.1 gal.
2.1 gal.

Operational

Front Suspension

KYB® Speed-Sensitive System inverted fork; fully adjustable

Travel - 11.8 in.

KYB® Speed-Sensitive System inverted fork; fully adjustable

Travel - 11.8 in.

Rear Suspension

KYB® single shock; fully adjustable

Travel - 12.4 in.

KYB® single shock; fully adjustable

Travel - 12.4 in.

Rake
Caster angle - 27.7°
Caster angle - 27.7°
Trail
4.8 in.
4.8 in.

Other

Warranty
30 Day (Limited Factory)
30 Day (Limited Factory)

Features

Chassis / Suspension

  • 270 MM FRONT BRAKE: Large 270mm front disc brake coupled with high-performance pad material offers outstanding machine control and performance, plus exceptional stopping power and controllability.
  • INDUSTRY-LEADING FORK: The KYB® 48mm forks feature the Speed-Sensitive System that uses piston speed to control the damping force for super-precise handling and a smooth ride.
  • ALUMINUM FRAME: A carefully engineered, advanced aluminum frame and swingarm give the YZ250 the best handling in the 250 class.
  • LIGHTWEIGHT SUBFRAME: Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.
  • ADVANCED KYB® SHOCK: Fully adjustable KYB® shock features reduced-friction Kashima Coat™ internals, 12.4 inches of travel, separate adjusters for high- and low-speed compression damping, and a full lock oil rebound system for increased comfort. All add up for fantastic rear wheel control and a sweet ride.
  • EXCEL® RIMS: Lightweight 21-inch front and 19-inch rear Excel® rims provide exceptional durability and help reduce unsprung weight for optimal suspension, performance and handling.
  • RACE-READY TIRES: Premium Dunlop® knobbies offer race-spec traction and wear.

Engine

  • TWO-STROKE POWER: The 249cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard-hitting powerband.
  • YAMAHA POWER VALVE SYSTEM: Patented YPVS™ combines crisp, hard-hitting bottom-end acceleration with strong midrange and eye-opening top-end.
  • ADVANCED CARBURETOR: 38 mm Keihin® PWK carburetor with power jet and throttle position sensor (TPS) provides precise fuel/air mixing and extra-crisp throttle response throughout the powerband.
  • RACE-DEVELOPED INTAKE: Special-design carbon fiber reed-valve petals improve the throttle response and engine performance across the entire rpm range.
  • CLOSE-RATIO TRANSMISSION: Smooth-shifting, five-speed, close-ratio transmission with heavy-duty, multiplate clutch.
  • HIGH-CAPACITY RADIATOR: Large-capacity radiator features a ten-row core with four louvers for maximum cooling efficiency.
  • DIGITAL IGNITION: Digital CDI system delivers precise spark for faster, stronger response anywhere in the powerband.

Other Features

  • RACE-READY FEATURES: Complete with an aluminum handlebar, 2-position adjustable handlebar clamp, wide foot pegs, gripper seat and adjustable clutch lever with works-style cable adjuster, the YZ250 is ready to race out of the crate.

Top Features

  • MODERN STYLING: The front fender, front number plate, radiator shrouds, side number plates, air box, rear fender, fork guards, as well as the rear brake disc protector, rear brake caliper protector and wider foot pegs offer modern, aggressive styling —just like the 4-strokes.
  • LIGHTWEIGHT FRAME: A light aluminum frame houses the patented YPVS™-equipped ripper of an engine for an awesome power-to-weight ratio.
  • RIDER-FRIENDLY CHASSIS: Ultra light weight means nimble handling and less fatigue.
  • 270 MM FRONT BRAKE: Large 270 mm front disc brake coupled with high-performance pad material offers outstanding machine control and performance, plus exceptional stopping power and controllability.

Chassis / Suspension

  • 270 MM FRONT BRAKE: Large 270mm front disc brake coupled with high-performance pad material offers outstanding machine control and performance, plus exceptional stopping power and controllability.
  • INDUSTRY-LEADING FORK: The KYB® 48mm forks feature the Speed-Sensitive System that uses piston speed to control the damping force for super-precise handling and a smooth ride.
  • ALUMINUM FRAME: A carefully engineered, advanced aluminum frame and swingarm give the YZ250 the best handling in the 250 class.
  • LIGHTWEIGHT SUBFRAME: Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.
  • ADVANCED KYB® SHOCK: Fully adjustable KYB® shock features reduced-friction Kashima Coat™ internals, 12.4 inches of travel, separate adjusters for high- and low-speed compression damping, and a full lock oil rebound system for increased comfort. All add up for fantastic rear wheel control and a sweet ride.
  • EXCEL® RIMS: Lightweight 21-inch front and 19-inch rear Excel® rims provide exceptional durability and help reduce unsprung weight for optimal suspension, performance and handling.
  • RACE-READY TIRES: Premium Dunlop® knobbies offer race-spec traction and wear.

Engine

  • TWO-STROKE POWER: The 249cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard-hitting powerband.
  • YAMAHA POWER VALVE SYSTEM: Patented YPVS™ combines crisp, hard-hitting bottom-end acceleration with strong midrange and eye-opening top-end.
  • ADVANCED CARBURETOR: 38 mm Keihin® PWK carburetor with power jet and throttle position sensor (TPS) provides precise fuel/air mixing and extra-crisp throttle response throughout the powerband.
  • RACE-DEVELOPED INTAKE: Special-design carbon fiber reed-valve petals improve the throttle response and engine performance across the entire rpm range.
  • CLOSE-RATIO TRANSMISSION: Smooth-shifting, five-speed, close-ratio transmission with heavy-duty, multiplate clutch.
  • HIGH-CAPACITY RADIATOR: Large-capacity radiator features a ten-row core with four louvers for maximum cooling efficiency.
  • DIGITAL IGNITION: Digital CDI system delivers precise spark for faster, stronger response anywhere in the powerband.

Other Features

  • RACE-READY FEATURES: Complete with an aluminum handlebar, 2-position adjustable handlebar clamp, wide foot pegs, gripper seat and adjustable clutch lever with works-style cable adjuster, the YZ250 is ready to race out of the crate.

Top Features

  • MODERN STYLING: The front fender, front number plate, radiator shrouds, side number plates, air box, rear fender, fork guards, as well as the rear brake disc protector, rear brake caliper protector and wider foot pegs offer modern, aggressive styling —just like the 4-strokes.
  • LIGHTWEIGHT FRAME: A light aluminum frame houses the patented YPVS™-equipped ripper of an engine for an awesome power-to-weight ratio.
  • RIDER-FRIENDLY CHASSIS: Ultra light weight means nimble handling and less fatigue.
  • 270 MM FRONT BRAKE: Large 270 mm front disc brake coupled with high-performance pad material offers outstanding machine control and performance, plus exceptional stopping power and controllability.