|
Oil Capacity (Quarts)
|
- | - | - | - | - | - | - | - | - | - | - | - | - | 0.05 quarts | 0.05 quarts | 0.05 quarts | 0.85 US quarts ↑ | 0.85 US quarts | 0.85 US quarts | 0.85 US quarts | 0.85 US quarts |
|
Ground Clearance (mm)
|
391 mm | 391 mm | 396 mm ↑ | 385 mm ↓ | 381 mm ↓ | 381 mm | 381 mm | 381 mm | 381 mm | 381 mm | 381 mm | 381 mm | 381 mm | 367 mm ↓ | 367 mm | 367 mm | 361 mm ↓ | 361 mm | 361 mm | 361 mm | 361 mm |
|
Ground Clearance (in.)
|
15.4 inches | 15.4 inches | 15.6 inches ↑ | 15.2 inches ↓ | 15.0 inches ↓ | 15.0 inches | 15.0 inches | 15.0 inches | 15.0 inches | 15.0 inches | 15.0 inches | 15.0 inches | 15.0 inches | 14.4 inches ↓ | 14.4 inches | 14.4 inches | 14.2 inches ↓ | 14.2 inches | 14.2 inches | 14.2 inches | 14.2 inches |
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Engine Type
|
Single cylinder | Single cylinder | Single cylinder | V2 | Single cylinder | Single cylinder | Single cylinder | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, four-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke | Single cylinder, two-stroke |
|
Displacement (cc)
|
249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | 249.00 cc | - | - | 249.00 cc | - | 249.0 cc | 249.0 cc | 249.0 cc | 249.0 cc | 249.0 cc |
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Mods from previous model
|
- | - | - | - | - | 500 grams off the front end makes this the quickest turning, best-handling YZ250 ever. | - | - | - | - | - | - | - | - | - | - | - | - | - | New flatter seat and more narrow fuel tank design. Updated lightweight braking system features larger front pistons, a more rigid caliper, a redesigned 270mm front rotor with a 30% increase in pad contact area and higher friction pad material. | - |
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Fuel Control
|
- | - | - | - | - | - | - | - | DOHC | Double Overhead Cams/Twin Cam (DOHC) | Single Overhead Cams (SOHC) | - | - | - | - | - | - | - | - | - | - |
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Stroke
|
2 | 2 | 2 | 4 ↑ | 2 ↓ | 2 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
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Frame Type
|
- | - | - | - | - | - | - | - | Aluminium | Hybrid steel and aluminum frame with a Controlled- Fill aluminum subframe and cast aluminum swingarm | - | - | - | Semi-double cradle aluminium | Semi-double cradle aluminium | Semi-double cradle aluminium | Semi-double cradle aluminium | Semi-double cradle aluminium | Semi-double cradle, aluminium | Semi-double cradle, aluminium | Semi-double cradle, aluminium |
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Seat Height
|
- | 990 mm / 39.0 in. | 991 mm / 39.0 in. ↑ | 997 mm / 39.3 in. ↑ | 993 mm / 39.1 in. ↓ | 993 mm / 39.1 in. | 993 mm / 39.1 in. | 993 mm / 39.1 in. | 993 mm / 39.1 in. | 993 mm / 39.1 in. | 993 mm / 39.1 in. | 993 mm / 39.1 in. | 993 mm / 39.1 in. | 976 mm / 38.4 in. ↓ | 976 mm / 38.4 in. | 976 mm / 38.4 in. | 976 mm / 38.4 in. | 976 mm / 38.4 in. | 970 mm / 38.2 in. ↓ | 970 mm / 38.2 in. | 975 mm / 38.4 in. ↑ |
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Dry Weight
|
97.5 kg / 215.0 lbs | 97 kg / 213.8 lbs ↓ | - | 96 kg / 211.6 lbs | 96 kg / 211.6 lbs | 96.2 kg / 212.0 lbs ↑ | - | - | - | - | 210.5 kg / 464.1 lbs | 59 kg / 130.1 lbs ↓ | - | - | - | - | - | - | - | - | - |
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Wheelbase
|
1,485 mm / 58.5 in. | 1,485 mm / 58.5 in. | - | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1,481 mm / 58.3 in. | 1481 mm / 58.3 in. ↑ | 1481 mm / 58.3 in. | 1481 mm / 58.3 in. | 1481 mm / 58.3 in. | 1481 mm / 58.3 in. |
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Brakes - Front
|
Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc. Hydraulic | Single disc. Hydraulic disc. | Single disc. Hydraulic disc. | Single disc. Hydraulic. | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc |
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Brakes - Rear
|
Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc. Hydraulic | Single disc | Single disc | Single disc. Hydraulic. | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc | Single disc |
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Fuel Capacity
|
- | - | 7.94 litres / 2.10 gallons | 8.00 litres / 2.11 gallons ↑ | 7.94 litres / 2.10 gallons ↓ | 7.94 litres / 2.10 gallons | 7.94 litres / 2.10 gallons | 7.94 litres / 2.10 gallons | 7.95 litres / 2.10 gallons | 7.95 litres / 2.10 gallons | 7.95 litres / 2.10 gallons | 7.95 litres / 2.10 gallons | 7.95 litres / 2.10 gallons | 8.00 litres / 2.11 gallons ↑ | 8.00 litres / 2.11 gallons | 8.00 litres / 2.11 gallons | 8.00 litres / 2.11 US gallons | 8.00 litres / 2.11 US gallons | 8.00 litres / 2.11 US gallons | 8.00 litres / 2.11 US gallons | 8.00 litres / 2.11 US gallons |
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Suspension - Front
|
- | Telescopic fork | 48mm Kayaba inverted cartridge fork w/adjustable compression and rebound damping | Telescopic fork | Telescopic Fork, coil spring/oil damper, 11.8´ | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork | Speed-Sensitive System inverted fork | 48mm fork, separate air/oil function fork | 48mm fork, separate air/oil function fork | KYB® Speed-Sensitive System inverted fork; fully adjustable ↑ | KYB® Speed-Sensitive System inverted fork; fully adjustable | KYB® Speed-Sensitive System inverted fork; fully adjustable | KYB® Speed-Sensitive System inverted fork; fully adjustable | KYB® Speed-Sensitive System inverted fork; fully adjustable | KYB® Speed-Sensitive System inverted fork; fully adjustable |
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Suspension - Rear
|
- | Swinging arm (Monocross) | Kayaba single shock w/adjustable preload, compression and rebound damping separate hi/lo-speed compression adjusters | Swinging arm (link-type monocross) | Swingarm (link, suspension), coil spring/gas-oil damper, 12.4´ | Fully adjustable single shock, 12.4-in travel | Fully adjustable single shock, 12.4-in travel | Fully adjustable single shock, 12.4-in travel | Fully adjustable single shock, 12.4-in travel | Fully adjustable single shock | Fully adjustable single shock, 12.4-in travel | Fully adjustable single shock, 12.4-in travel | Fully adjustable single shock | Monocross rear suspension system | Monocross rear suspension system | KYB® single shock; fully adjustable | KYB® single shock; fully adjustable | KYB® single shock; fully adjustable | KYB® single shock; fully adjustable | KYB® single shock; fully adjustable | KYB® single shock; fully adjustable |
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Fuel System
|
- | - | Carburettor | Carburettor. Keihin PWK38S/1 | - | - | Carburettor. Keihin® PWK38S | Carburettor. Keihin® PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Keihin PWK38S | Carburettor. Hitachi Astemo® Keihin PWK38S |
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Colours
|
- | Blue | Team Yamaha Blue/White | - | - | - | Team Yamaha Blue/White | Team Yamaha Blue/White | Team Yamaha Blue/White | Blue/White, White/Red | Team Yamaha Blue/White | Team Yamaha Blue/White | Team Yamaha Blue/White | Team Yamaha Blue/White | Blue/White | Team Yamaha Blue | Team Yamaha Blue | Team Yamaha Blue | Team Yamaha Blue | Team Yamaha Blue | Team Yamaha Blue |
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Clutch
|
- | - | - | Wet, multiple-disc | - | - | - | - | - | Multiplate, wet | - | No clutch | - | - | - | - | - | - | - | - | - |
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Final Drive
|
- | - | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain | Chain (final drive) | Chain (final drive) | Chain (final drive) | Chain (final drive) | Chain (final drive) |
|
Height
|
1,302 mm / 51.3 in. | 1,302 mm / 51.3 in. | 1,308 mm / 51.5 in. | 1,309 mm / 51.5 in. | 1,306 mm / 51.4 in. | 1,306 mm / 51.4 in. | 1,306 mm / 51.4 in. | 1,306 mm / 51.4 in. | 1,306 mm / 51.4 in. | 1,064 mm / 41.9 in. ↓ | 1,306 mm / 51.4 in. ↑ | 1,306 mm / 51.4 in. | 1,306 mm / 51.4 in. | 1,299 mm / 51.1 in. | 1,299 mm / 51.1 in. | 1,299 mm / 51.1 in. | 1306 mm / 51.4 in. ↑ | 1306 mm / 51.4 in. | 1306 mm / 51.4 in. | 1290 mm / 50.8 in. ↓ | 1290 mm / 50.8 in. |
|
Rims
|
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Dunlop® MX52 tyres | Dunlop® MX52 tyres ↓ | Dunlop® MX52 tyres | Dunlop® MX52 tyres | Dunlop® Geomax tyres | Dunlop® Geomax MX33 tyres |
|
Length
|
2,182 mm / 85.9 in. | 2,182 mm / 85.9 in. | 2,182 mm / 85.9 in. | 2,184 mm / 86.0 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,177 mm / 85.7 in. | 2,147 mm / 84.5 in. ↓ | 2,147 mm / 84.5 in. | 2,147 mm / 84.5 in. | 2177 mm / 85.7 in. ↑ | 2177 mm / 85.7 in. | 2177 mm / 85.7 in. | 2184 mm / 86.0 in. ↑ | 2184 mm / 86.0 in. |
|
Wet Weight
|
- | - | - | - | - | - | 103.9 kg / 229.0 lbs | 103.9 kg / 229.0 lbs | 103.0 kg / 227.0 lbs ↓ | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.1 lbs | 103.0 kg / 227.1 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs | 103.0 kg / 227.0 lbs |
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Warranty
|
- | - | - | - | - | - | - | - | 30 Day (Limited Factory Warranty) | 30 Day (Limited Factory Warranty) | 30 Day (Limited Factory Warranty) | 30 Day (Limited Factory Warranty) | 30 Day Limited Factory Warranty | - | - | - | - | 30 Day (Limited Factory Warranty) | 30 Day Limited Factory Warranty | 30 Day Limited Factory Warranty | 30 Day Limited Factory Warranty |
|
Compression Ratio
|
8.8:1 | 9.0:1 ↑ | 9.1:1 ↑ | 8.9:1 ↓ | 9.2:1 ↑ | 9.2:1 | 9.2:1 | 9.2:1 | 8.9:1 ↓ | 8.9:1 | 8.9:1 | 8.9:1 | 8.9:1 | 10.6:1 ↑ | 10.6:1 | 10.6:1 | 10.6:1 | 10.6:1 | 10.6:1 | 10.6:1 | 10.6:1 |
|
Tyres - Front
|
80/100-21 51M | 80/90-21 | 80/80-21 | 80/90-M21 | 80/80-M21 | 80/80-M21 | 80/80-M21 | 80/100-M21 | 21/7-10 ↓ | 21/7-10 | 80/100-M ↑ | 100/80-10 ↑ | 80/100-21 ↓ | 80/100-21 | 80/100-21 | 80/100-21 | 80/100-21 | 80/100-21 | 80/100-21 | 80/100-21 | 80/100-21 |
|
Engine Lubrication
|
- | - | - | Premix | - | - | - | - | Dry sump | Wet sump | - | - | - | - | Premix | Premix | Premix | Premix | Premix | Premix | Premix |
|
Width
|
827 mm / 32.6 in. | 827 mm / 32.6 in. | 828 mm / 32.6 in. ↑ | 827 mm / 32.6 in. ↓ | 828 mm / 32.6 in. ↑ | 828 mm / 32.6 in. | 828 mm / 32.6 in. | 828 mm / 32.6 in. | 828 mm / 32.6 in. | 828 mm / 32.6 in. | 828 mm / 32.6 in. | 828 mm / 32.6 in. | 828 mm / 32.6 in. | 827 mm / 32.6 in. ↓ | 827 mm / 32.6 in. | 827 mm / 32.6 in. | 827 mm / 32.6 in. | 827 mm / 32.6 in. | 827 mm / 32.6 in. | 813 mm / 32.0 in. ↓ | 826 mm / 32.5 in. ↑ |
|
Tyres - Rear
|
110/90-19 62M | 110/90-19 | 110/90-19 | 110/90-M19 | 110/90-M19 | 110/90-M19 | 110/90-M19 | 110/90-M19 | 110/90-M19 | 110/90-19 | 110/90-M19 | 110/90-19 | 110/90-19 | 110/90-19 | 110/90-19 | 110/90-19 | - | - | - | - | - |
|
Primary Drive
|
- | - | - | - | - | - | - | - | 2WD; Sealed O-Ring Chain, Eccentric Adjustment | Constant-mesh 5-speed ↑ | - | - | - | - | - | - | - | - | - | Constant-mesh | Constant-mesh |
|
Rake
|
- | - | - | - | - | 26.0° | - | - | - | - | 28.0° | 28.0° | 28.0° | 26.0° ↓ | 26.0° | 27.7° ↑ | 27.7° | 27.7° | 27.7° | 27.7° | 27.7° |
|
Seat
|
- | - | - | - | - | - | - | - | - | - | 2-person seat | 2 people seat | - | - | - | - | - | - | - | - | - |
|
Lighting system
|
- | - | - | - | - | - | - | - | Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light | Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light | - | LED lights | - | - | - | - | - | - | - | - | - |
|
Trail
|
- | - | - | - | - | - | - | - | - | - | - | - | - | 109 mm / 4.3 in. | 109 mm / 4.3 in. | 122 mm / 4.8 in. ↑ | 122 mm / 4.8 in. | 122 mm / 4.8 in. | 122 mm / 4.8 in. | 122 mm / 4.8 in. | 122 mm / 4.8 in. |
|
Wheel Travel - Rear
|
315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 125 mm / 4.9 in. ↓ | - | - | - | - | - | 315 mm / 12.4 in. | - | - | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. | 315 mm / 12.4 in. |
|
Power-to-Weight Ratio
|
- | - | - | - | - | - | - | - | - | - | 0.1143 HP/kg | 0.1819 HP/kg ↑ | - | - | - | - | - | - | - | - | - |
|
Starter
|
- | - | - | Kick | - | - | - | - | Electric | Electric | Electric | Electric | Electric | Electric | Electric | Electric | Electric | Electric | Electric | Electric | Electric |
|
Valve System
|
- | - | 1 | - | - | - | - | - | - | 5 | - | - | - | - | - | - | - | - | - | - | - |