| General |
| Comments | - | Power reduction kit available. |
| Colours | Team Yamaha Blue | White/grey/yellow |
| Warranty | 30 Day Limited Factory Warranty | 2 Years |
| Dimensions |
| Seat Height (mm) | 970 mm | 665 mm |
| Width (mm) | 826 mm | - |
| Seat Height (in.) | 38.2 inches | 26.2 inches |
| Width (in.) | 32.5 inches | - |
| Wheelbase (mm) | 1476 mm | 1032 mm |
| Length (mm) | 2174 mm | - |
| Wheelbase (in.) | 58.1 inches | 40.6 inches |
| Length (in.) | 85.6 inches | - |
| Height (mm) | 1285 mm | - |
| Height (in.) | 50.6 inches | - |
| Ground Clearance (mm) | 335 mm | 252 mm |
| Ground Clearance (in.) | 13.2 inches | 9.9 inches |
| Weights & Capacities |
| Dry Weight (lbs.) | - | 91.5 pounds |
| Fuel Capacity (gal.) | 1.60 US gallons | 0.61 US gallons |
| Fuel Capacity (l) | 6.06 litres | 2.30 litres |
| Oil Capacity (Quarts) | 0.95 US quarts | 0.95 US quarts |
| Dry Weight (kg) | - | 41.5 |
| Wet Weight (kg) | 106.1 kg | - |
| Oil Capacity (l) | 0.90 litres | 0.90 litres |
| Wet Weight (lbs.) | 234.0 pounds | - |
| Performance |
| Mods from previous model | New 2.15-inch wide rear rim paired with premium 110-width Dunlop® Geomax MX33 tire serves up increased traction. New lightweight rear hub, rear sprocket and drive chain reduce unsprung weight and driveline inertia. | - |
| Engine |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) | - |
| Engine Type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Displacement (ci) | 15.26 cubic inches | 2.99 cubic inches |
| Displacement (cc) | 250.0 cc | 49.0 cc |
| Bore x Stroke (mm) | 77.0 x 53.6 mm | 39.5 x 40.0 mm |
| Bore x Stroke (in,) | 3.0 x 2.1 inches | 1.6 x 1.6 inches |
| Stroke | - | 2-stroke |
| Engine Detail | - | Reed valve |
| Fuel System | Injection. Mikuni, 44mm | - |
| Compression Ratio | 13.8:1 | - |
| Engine Lubrication | Wet sump | Mixture oil lubrication |
| Ignition | TCI: Transistor Controlled Ignition | Seletra 2p D36 |
| Starter | Electric | Kick |
| Valve System | 4 | - |
| Drivetrain |
| Clutch | Multiplate wet clutch | Centrifugal clutch (adjustable) |
| Final Drive | Chain (final drive) | Chain (final drive) |
| Gearbox | 5-speed | Automatic |
| Primary Drive | Constant-mesh | Single-speed automatic. 1/2 x 3/16´ cahin. |
| Chassis |
| Wheel Travel - Front (mm) | 310 mm | 205 mm |
| Wheel Travel - Rear (in.) | 12.5 inches | 7.3 inches |
| Wheel Travel - Rear (mm) | 318 mm | 185 mm |
| Trail (mm) | 119 mm | - |
| Trail (in.) | 4.7 inches | - |
| Wheel Travel - Front (in.) | 12.2 inches | 8.1 inches |
| Frame Type | Bilateral beam aluminum frame | Chrome-molybdenum steel central-tube |
| Suspension - Front | KYB speed-Sensitive System, inverted fork: fully adjustable | XACT 35 WP Upside-Down fork, Ø 35 mm |
| Suspension - Rear | KYB fully adjustable single shock | XACT WP PDS mono shock |
| Rake | 26.8° | 24.0° |
| Wheels & Brakes |
| Brakes - Front | Single disc. Hydraulic. | Single disc. Hydraulic, wave disk |
| Brakes - Rear | Single disc. Hydraulic. | Single disc. Hydraulic, wave disk |
| Rims | Bridgestone® Battlecross tyres | Black anodised, aluminium rims. Maxxis tyres. |
| Tyres - Front | 80/100-21 | - |