Yamaha DT 125RE (1998) vs Kawasaki Z 750F Export (1979) vs Yamaha XJ 650 Maxim (1982) vs Yamaha XJ 550 (1981)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki | Yamaha | Yamaha |
| Model: | DT 125RE | Z 750F Export | XJ 650 Maxim | XJ 550 |
| Years: | 1998 | 1979 | 1982 | 1981 |
| Engine: | Two stroke, single cylinder, reed-valve | Four stroke, transverse four cylinder. DOHC, 2 valve per cylinder | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder, | Four stroke, transverse four cylinder. DOHC, 2 valves per cylinder. |
| Capacity: | 123 cc / 7.5 cu-in | 746 cc / 45.5 cu-in | 653 cc / 39.8 cu-in | 528 cc / 32.2 cu-in |
| Bore x Stroke: | 56 X 50 mm | 64 х 58 mm | 63 х 52.4 mm | 57 X 51.8 mm |
| Compression Ratio: | 6.8:1 | NA | 9.2:1 | 9.5:1 |
| Induction: | Mikuni 28 SS | 4x Mikuni VM 28 SC carburetors | 4x 32mm Hitachi carburetors | 4x 28mm Mikuni carburetors |
| Ignition: | CDI | Battery & coil | Transistorized | Battery powered inductive |
| Starting: | Kick | Electric & kick | Electric | Electric |
| Max Power: | 14.7 / 10.8 kW @ 7000 rpm | 70 hp / 52.1 kW @ 9000 rpm | 71 hp / 51.8 kW @ 9400 rpm | 37 kW / 50 PS @ 9000 rpm |
| Max Torque: | 1.7 kgf-m / 16.3 Nm @ 7000 rpm | 5.9 kgf-m / 42.6 lb-ft @ 7500 rpm | 57 Nm / 42 lb-ft @ 7500 rpm | 41.9 Nm / 4,3 m-kg @ 7500 rpm |
| Transmission: | 6 speed | 5 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain, 96 Link | Shaft | Chain |
| Front Suspension: | 41mm Telescopic forks | Telescopic forks | 26mm Air assisted telescopic forks | Telescopic coil spring forks |
| Rear Suspension: | Monocross linkage | Swing arm dual shocks | Duel Kayaba shocks, 5-way adjustable spring preload | Swinging arm with dual dampers adjustable for preload |
| Front Brakes: | Single 230mm disc | 2x disc | Single 300mm disc | 2x 267mm discs |
| Rear Brakes: | Single 220mm disc | Drum | Drum | 182mm Drum |
| Front Tyre: | 80/90 -21 | 3.25-19 | 3.25 H19 | 3.25-19 |
| Rear Tyre: | 110/80 -18 | 4.00-18 | 130/90 H16 | 110/ 90-16 |
| Fuel Capacity: | 10 Litres / 2.2 gal | 17.7 Litres / 4.6 US gal | 13 Litres / 3.4 US gal | 15 liters / 3.9 US gal |