| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | Yamaha |
| Model Name | SR400 |
| Year | 2011 |
| Category(class) | All-round |
| Engine |
|---|
| Engine Capacity (Displacement) | 399 ccm (24.35 cubic inches) |
| Engine Type | Single cylinder, four-stroke |
| Bore x Stroke | Ø87.0 mm x 1,093.0 mm (Ø3.43 inches x 0.04 inches) |
| Bore/Stroke Ratio | 87 |
| Compression Ratio | 8.5:1 |
| Valves per Cylinder | 2 |
| Timing System | SOHC |
| Fuel System(Carburetion) | Carburettor. BSR33 |
| Starter System | Kick |
| Cooling System | Air |
| Powertrain |
|---|
| Gearbox | 5 speed |
| Transmission (Final Drive) | Chain |
| Chassis/Suspension/Brakes |
|---|
| Front Brakes | Single disc |
| Rear Brakes | Expanding brake (drum brake) |
| Front Tire | 350-19 |
| Rear Tire | 400-16 |
| Dimensions |
|---|
| Overall Length | 2085 mm (82.09 inches) |
| Fork Angle (Rake) | 24.7° degrees |
| Trail | 111 mm (4.37 inches) |
| Dry Weight | 131.0 kg (289 lb) |
| Fuel Capacity | 12.00 litres (3.17 gallons) |
| Performance |
|---|
| Max Power | 27.00 HP (19.7 kW) at 7000 RPM |
| Max Torque | 62.00 Nm (45.59 ft*lbs) at 6500 RPM |
| Power/Weight Ratio | 0.18 Hp/Kg |
| Top Speed | - |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | 7.6 seconds |
| 0-60 mph | 7.2 seconds |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
