Comparison of Suzuki Impulse 400 2011 and Yamaha SR 400 2012 [S]ave
| Attribute |  Suzuki Impulse 400 2011 × |  Yamaha SR 400 2012 × |
|---|---|---|
| General | ||
| Production from (year) | 2011 | 2012 |
| Make | Suzuki | Yamaha |
| Model | Suzuki Impulse 400 | Yamaha SR 400 |
| Category | Allround | Allround |
| Engine and transmission | ||
| Engine type | In-line four, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 4 | 2 |
| Fuel system | Carburettor. BSR29 | Carburettor. BSR33 |
| Displacement (cm³) | 398 | 399 |
| Power (kw) | 38.2 | 19.7 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 37 | 29 |
| Bore (mm) | 52 | 87 |
| Stroke (mm) | 47 | 67.2 |
| Gearbox | 6-speed | 5-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Overhead Cams (OHC) |
| Ignition | Full transistor type | - |
| Clutch | Wet multi-plate coil spring | - |
| Compression | - | 8.5:1 |
| Chassis | ||
| Front suspension | - | Telescopic fork |
| Rear suspension | - | Dual shocks |
| Front brakes | Double disc | Single disc. 2-piston calipers |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Frame type | Diamond | Steel |
| Front tyre | 110/70-17 | 90/100-18 |
| Rear tyre | 140/70-17 | 110/90-18 |
| Trail (mm) | 96 | 111 |
| Rake (fork angle) (degree) | 25.3 | 24.7 |
| Other | ||
| Starter | Electric | Kick |
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,435 | 1,410 |
| Dry weight (kg) | 177 | 152 |
| Power/weight ratio | 0.2158 | 0.1296 |
| Overall height (mm) | 1,105 | 1,100 |
| Overall length (mm) | 2,080 | 2,085 |
| Overall width (mm) | 745 | 750 |
| Seat height (mm) | 760 | 790 |
| Ground clearance (mm) | 120 | 140 |
| Performance | ||
| Fuel capacity (l) | 16 | 12 |
| Oil capacity (l) | 3.2 | - |
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