Kawasaki Z 400 Special (1977) vs Yamaha DT 125MX (1981) vs Kawasaki ER-6n (2014)
Comparison technical specifications
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| Make: | Kawasaki | Yamaha | Kawasaki |
| Model: | Z 400 Special | DT 125MX | ER-6n |
| Years: | 1977 | 1981 | 2014 |
| Engine: | Four stroke, parallel twin cylinder, SOHC, 2 Valve per cylinder. | Two stroke, single cylinder, reed-valve | Four stroke, parallel twin, DOHC, 4 valves per cylinder. |
| Capacity: | 398 cc / 24.2 cu-in | 123 cc / 7.5 cu-in | 649 cc / 39.6 cu-in |
| Bore x Stroke: | 64 х 62 mm | 56 х 50 mm | 83 X 60 mm |
| Compression Ratio: | 9.4:1 | 7.2:1 | 11.3;1 |
| Cooling System: | Air cooled | Air cooled | Liquid cooled, |
| Lubrication: | Forced lubrication, wet sump | Autolube | Wet sump |
| Induction: | 2x Keihin CV32 6caburetor | Single 24 mm Mikuni | 2x 38mm Electronic Fuel Injection Keihin |
| Ignition: | Battery & coil | Flywheel Magneto | Digital TCBI |
| Starting: | Electric & kick | Kick | Electric |
| Max Power: | 36 hp / 26.8 kW @ 8500 rpm | 14 hp / 10.3 kW @ 6500 rpm | 53 kW / 72.1 hp @ 8500 rpm |
| Max Torque: | 3.3 kgf-m / 23.8 lb-ft @ 7500 rpm | 1.5 kgf-m / 15.2 Nm @ 6500 rpm | 66 Nm / 6.7 m-kg @ 7000 rpm |
| Transmission: | 5 Speed | 6 speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | Telescopic fork | Telescopic Forks | 41 mm telescopic fork, |
| Rear Suspension: | Swing arm | Monocross | Offset laydown single-shock with adjustable preload, |
| Front Brakes: | Drum | Drum | 2x 300mm discs 2 piston Calipers |
| Rear Brakes: | Drum | Drum | Single 220mm disc 1 piston Caliper |
| Front Tyre: | 3.25 - S18 4PR | 2.75-21 | 120/70ZR17 |
| Rear Tyre: | 3.50 - SIB 4PR | 3.50-18 | 160/60ZR17 |
| Dimensions: | Length 2080 mm / 81.9 in Width 775 mm / 30.5 in Length 1050 mm / 41.3 in | Length 2080 mm / 81.8 in Width 885 mm / 34.8 in Height 1120 mm / 41.0 in | Length 2110 mm / 83.0 in Width 770 mm / 30.3 Height 1110 mm / 43.7 in |
| Wheelbase: | 1370 mm / 53.9 In | 1325 mm / 52.2 in | 1410 mm / 55.5 in |
| Ground Clearance: | 125 mm / 4.9 in | 265 mm / 10.4 in | 130 mm / 5.1 in |
| Fuel Capacity: | 14 Litres / 3.6 US gal | 7 Litres / 1.58 gal | 16 Litres / 4.2 US gal. |