Yamaha XJ 900 S - 1984 Specifications and Reviews
The 1984 Yamaha XJ 900 S is a sport touring middleweight powered by an air-cooled 853cc inline-four engine producing 97 horsepower. Known for its balanced handling and practical shaft drive, it appeals to riders seeking versatility between spirited road riding and comfort. The XJ 900 S earned respect for combining performance with everyday usability in a relatively lightweight package.
General information | |
| Category | Sport touring |
| Year | 1984 |
| Model | Yamaha XJ 900 S |
| | |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Shaft drive (cardan) |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | DOHC |
| Valves per cylinder | 2 |
| Bore x stroke | 67.0 x 60.5 mm (2.6 x 2.4 inches) |
| Compression | 9.6:1 |
| Power | 97.00 |
| Stroke | 4 |
| Engine type | In-line four |
| Capacity: | 853.00 ccm (52.05 cubic inches) |
Physical measures and capacities | |
| Weight incl. oil, gas, etc | 244.0 kg (537.9 pounds) |
| | |
Yamaha XJ 900 S dimensions and frame | |
| Rear brakes | Expanding brake |
| Front brakes | Dual disc |
| Rear tyre dimensions | 120/90-18 |
| Front tyre dimensions | 100/90-18 |
Speed and acceleration | |
| Top speed | 211.0 km/h (131.1 mph) |
Other specs | |
| Fuel capacity | 22.00 litres (5.81 gallons) |









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