Yamaha SR 400 (1988-92) vs Yamaha TDM 900 (2002-03)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | SR 400 | TDM 900 |
| Years: | 1988-92 | 2002-03 |
| Engine: | Four stroke, single cylinder, SOHC, 2 valves per cylinder. | Four stroke, parallel twin cylinder, DOHC, 5 valves per cylinder |
| Capacity: | 399 cc / 24.3 cu-in | 897 cc / 54.7 cu-in |
| Bore x Stroke: | 87 х 67.2 mm | 92 x 67.5 mm |
| Compression Ratio: | 8.5:1 | 10.4:1 |
| Cooling System: | Air cooled | Liquid cooled |
| Oil Capacity: | 2.4 Litres | 4.7 liters / 0.31 quarts |
| Lubrication: | Dry sump | Dry sump |
| Induction: | BSR33 carburetor | Electronic Fuel Injection |
| Ignition: | CDI | TCI |
| Starting: | Kick | Electric |
| Max Power: | 27 hp / 17.1 KW @ 7000 rpm | 86.2 hp / 63.4kW @ 7500 rpm |
| Max Torque: | 27.4 Nm / 6.3 kgf-m @ 6500 rpm | 88.8 Nm / 9.1 kgf-m @ 6000 rpm |
| Clutch: | Wet, Multiple Disc | Wet, multiple-disc coil spring |
| Transmission: | 5 Speed | 6 speed |
| Final Drive: | Chain | Chain |
| Frame: | Steel Double Cradle | Aluminium, diamond shaped |
| Front Suspension: | Telescopic fork | Telescopic fork |
| Front Wheel Travel: | 111 mm / 4.3 in | 150 mm / 5.9 in |
| Rear Suspension: | Dual shocks | Swingarm Link-type |
| Front Brakes: | Single disc | 2x 298mm discs |
| Rear Brakes: | Drum | Single 248mm disc |
| Front Tyre: | 3.50-19 | 120/70 ZR18 |
| Rear Tyre: | 4.00-16 | 160/60 ZR17 |
| Trail: | 111 mm / 4.4 in | 114 mm / 4.5 in |
| Wheelbase: | 1410 mm / 55.5 IN | 1485 mm / 58.5 in |
| Seat Height: | 790 mm / 30.9 in | 825 mm / 32.5 in |
| Ground Clearance: | 130 mm / 5.1 in | 160 mm / 6.3 in |
| Fuel Capacity: | 12 Litres / 3.2 gal | 20 Litres / 5.2 US gal |