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1985 Yamaha XJ 900 S specifications

Available technical data for this model and year. Specifications can vary by market and version.

Technical specifications

Displacement853.0 ccm (52.05 cubic inches)
Engine typeIn-line four, four-stroke
Power97.0 HP (70.8 kW )) @ 9000 RPM
Compression9.6:1
Bore x stroke67.0 x 60.5 mm (2.6 x 2.4 inches)
Valves per cylinder2
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Cooling systemAir
Gearbox5-speed
Transmission typeShaft drive (cardan) (final drive)
Front brakesDual disc
Rear brakesSingle disc
Front tyre100/90-18
Rear tyre120/90-18
Weight incl. oil, gas, etc244.0 kg (537.9 pounds)
Fuel capacity22.00 litres (5.81 US gallons)
Top speed211.0 km/h (131.1 mph)

Source: Bikez: XJ 900 S, 1985. Retrieved 2026-09-19. Match confidence: exact.

Years listed are the entries held in this archive, rather than a complete production history.

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