Yamaha XT 660X (2008) vs Yamaha XJ 400S Diversion (1991-)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | XT 660X | XJ 400S Diversion |
| Years: | 2008 | 1991- |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 659 cc/ 40.2 cu-in | 399 cc / 24.2 cu-in |
| Bore x Stroke: | 100 x 84 mm | 55 х 47 mm |
| Compression Ratio: | 10: 1 | 10.7:1 |
| Cooling System: | Liquid cooled | Air cooled |
| Induction: | Fuel injection, 44 mm throttle body | 4x 30mm CV |
| Ignition: | TCI | CDI |
| Starting: | Electric | Electric |
| Max Power: | 33.8 kW / 48 hp @ 6000 rpm | 42 ps / 30.8 kW @ 10000 rpm |
| Max Torque: | 58.4 Nm / 5.7 kgf-m @ 5250 rpm | 3.5 kgf-m / 25.3 lb-ft @ 7000 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | 43 mm Telescopic forks, | Telescopic forks |
| Rear Suspension: | Oscillating arm standard Monocross. | Dual shocks preload adjustable. |
| Front Brakes: | Single 320mm disc 4 piston caliper | Single discs 2 piston caliper |
| Rear Brakes: | Single 245mm disc 1 piston caliper | Single discs 2 piston caliper |
| Front Tyre: | 120/700-17 | 110/70-17 |
| Rear Tyre: | 160/60-17 | 130/70-18 |
| Dry Weight: | 173 kg / 318.4 lbs | 178 kg / 392 lbs |
| Fuel Capacity: | 15 Litres / 3.9 gal | 18 Litres / 4.7 US gal |