Yamaha XJ 650 Midnight Maxim (1981) vs Ducati 350 F3 (1987-88)
Comparison technical specifications
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| Make: | Yamaha | Ducati |
| Model: | XJ 650 Midnight Maxim | 350 F3 |
| Years: | 1981 | 1987-88 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder, | Four stroke, 90°“L” twin cylinder, Desmo SOHC, belt driven |
| Capacity: | 653 cc / 39.8 cu-in | 348.9 cc / 21.3 cu in |
| Bore x Stroke: | 63 х 52.4 mm | 66 x 51 mm |
| Cooling System: | Air-cooled | Air cooled |
| Compression Ratio: | 9.2:1 | 10.3:1 |
| Induction: | 4x 32mm Hitachi carburetors | 2 x 30mm Dell'Orto carburetors |
| Ignition: | Transistorized | Electronic ignition, Bosch BTZ |
| Starting: | Electric | Electric |
| Max Power: | 71 hp / 51.8 kW @ 9400 rpm | 30.9 kW / 42 hp @ 9700 rpm |
| Max Torque: | 57 Nm / 42 lb-ft @ 7500 rpm | 33 Nm / 3.36 kgf-m / 24.3 ft-lb @ 7100 rpm |
| Transmission: | 5 Speed | 5 Speed |
| Final Drive: | Shaft | Chain |
| Front Suspension: | 26mm Air assisted telescopic forks | 35 mm Marzocchi fork |
| Rear Suspension: | Duel Kayaba shocks, 5-way adjustable spring preload | Cantilever swingarm, Boge single adjustable shock |
| Front Brakes: | Single 300mm disc | 2 x 260 mm Discs |
| Rear Brakes: | Drum | Single 260 mm disc |
| Front Tyre: | 3.25 H19 | 100/90-18 |
| Rear Tyre: | 130/90 H16 | 120/80-18 |
| Seat Height: | 744 mm / 29.3 in | 750 mm / 29.5 in |
| Dry Weight: | 203 kg / 450 lbs | 180 kg / 397 lbs |
| Fuel Capacity: | 13 Litres / 3.4 US gal | 18 L / 4.8 US gal / 4.0 Imp gal |
| Top Speed: | 120 mph | 178 km/h / 110.8 mph |