| Attribute | Yamaha SR 400 2012 × | Yamaha SR 400 2002 × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2002 |
| Make | Yamaha | Yamaha |
| Model | Yamaha SR 400 | Yamaha SR 400 |
| Category | Allround | Naked bike |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 2 | 2 |
| Fuel system | Carburettor. BSR33 | Carburettor |
| Displacement (cm³) | 399 | 399 |
| Power (kw) | 19.7 | 19.7 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 29 | 29 |
| Bore (mm) | 87 | 87 |
| Stroke (mm) | 67.2 | 67.2 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Overhead Cams (OHC) | Single Overhead Cams (SOHC) |
| Compression | 8.5:1 | 8.5:1 |
| Chassis | ||
| Front suspension | Telescopic fork | - |
| Rear suspension | Dual shocks | - |
| Front brakes | Single disc. 2-piston calipers | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake |
| Frame type | Steel | - |
| Front tyre | 90/100-18 | 90/100-18 54S |
| Rear tyre | 110/90-18 | 110/90-18 61S |
| Trail (mm) | 111 | - |
| Rake (fork angle) (degree) | 24.7 | - |
| Other | ||
| Starter | Kick | - |
| Dimensions | ||
| Wheelbase (mm) | 1,410 | 1,410 |
| Dry weight (kg) | 152 | 152 |
| Power/weight ratio | 0.1296 | 0.1296 |
| Overall height (mm) | 1,100 | 1,105 |
| Overall length (mm) | 2,085 | 2,085 |
| Overall width (mm) | 750 | 750 |
| Seat height (mm) | 790 | 790 |
| Ground clearance (mm) | 140 | 140 |
| Performance | ||
| Fuel capacity (l) | 12 | 12 |