Yamaha FZ-6N (2004) vs Yamaha XT 250 (1979-80) vs Yamaha FJR 1300A (2004) vs Yamaha XS 1100SF Special (1979)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha | Yamaha |
| Model: | FZ-6N | XT 250 | FJR 1300A | XS 1100SF Special |
| Years: | 2004 | 1979-80 | 2004 | 1979 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, single cylinder, SOHC, 2 valve | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke transverse four cylinder, DOHC, 2 valves per cylinder. |
| Capacity: | 599 cc / 36.5 cu-in | 249 cc / 15.2 cu-in | 1298 cc / 79.2 cu-in cc / 79.2 cu-in | 1101 cc / 67.2 cu-in |
| Bore x Stroke: | 65.5 x 44.5 mm | 75 х 56.5 mm | 79 x 66.2 mm | 71.5 x 68.6 mm |
| Compression Ratio: | 12.2:1 | 9.2:1 | 10.8:1 | 9.2:1 |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled, | Air cooled |
| Lubrication: | Wet sump | Wet sump | Wet sump | Wet sump |
| Induction: | Group injection type fuel injection, 36mm Funnel diameter | Single 28mm Mikuni caruretor | Mikuni 42mm throttle body F.I. | 4x Mikuni BS 34SS Carburettor |
| Ignition: | TCI Digital CDI | CDI | CDI | TCI additional vacuum adjusted! / electric kick starter - Witch is separated from the engine, for emergency mounting only |
| Starting: | Electric | Kick | Electric | Electric |
| Max Power: | 98 hp / 72 kW @ 12000 rpm | 22 hp / 16.1 kW @ 8000 rpm | 145 hp / 105.7 kW @ 8500 rpm | 95 hp / 70.8 kW @ 8500 rpm |
| Max Torque: | 63.1 Nm / 6.4 kgf-m @ 10000 rpm | 2 kgf-m / 14.4 lb-ft @ 6500 rpm | 125 Nm / 13.7kgf-m / 99.1 ft-lb @ 6000 rpm | 9.2 kgf-m / 66.5 lb-ft @ 6500 rpm |
| Transmission: | 6 Speed | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Shaft | Shaft |
| Front Suspension: | 43mm Telescopic fork, | Leading axle, coil spring forks | 48mm Soqi telescopic fork w/adjustable preload, compression and rebound damping | Telescopic fork. |
| Rear Suspension: | Swingarm Link less type Monocross | Swing arm single Kayaba shock | Single shock, link-type, w/adjustable preload and rebound damping | Dual shocks Swing arm, preload adjustable |
| Front Brakes: | 2x 298 mm discs | 130mm Drum | 2x 320mm discs 4 piston calipers | 2x 298mm discs |
| Rear Brakes: | Single 245 mm disc | 130mm Drum | Single 283mm disc 2 piston caliper | Single 298mm disc |
| Front Tyre: | 120/70 ZR17 | 3.00-21 | 120/70 ZR17 | 3.50-19 |
| Rear Tyre: | 180/55 ZR17 | 4.60-17 | 180/55 ZR17 | 4.50-16 |
| Fuel Capacity: | 19 Litres / 5.0 US gal | 8 Litres / 2.1 US gal | 25 Liters / 5.5 gal | 15 Litres / 3.9 US gal |
| Standing ¼ Mile: | 11.5 sec | 16.4 sec / 74.5 mph 120 km/h | 11.0 sec | 11.7 sec / 114.2 mph 183.8 km/h |
| Top Speed: | 228.0 km/h / 141.6 mph | 80 mph 128.7 km/h | 249 km/h | 126 mph / 202.8 km/h |