1982 Yamaha XS 400 specifications

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

Technical specifications

Displacement	392.0 ccm (23.92 cubic inches)
Engine type	Twin, four-stroke
Power	27.0 HP (19.7 kW )) @ 7000 RPM
Compression	9.2:1
Bore x stroke	69.0 x 52.4 mm (2.7 x 2.1 inches)
Valves per cylinder	2
Fuel system	Carburettor. 2 x 3 2 mm Mikuni
Fuel control	Overhead Cams (OHC)
Ignition	Transistorized
Gearbox	6-speed
Transmission type	Chain (final drive)
Clutch	Wet, multiplate
Front suspension	Hydraulic telescopic forks
Rear suspension	Monocross system with single coil sprung, gas/oil damped shock, pre-load adjustable
Front brakes	Single disc
Rear brakes	Expanding brake
Front tyre	3.00-18
Rear tyre	4.00-18
Dry weight	169.0 kg (372.6 pounds)
Weight incl. oil, gas, etc	182.0 kg (401.2 pounds)
Overall width	400 mm (15.7 inches)
Fuel capacity	17.00 litres (4.49 US gallons)
Top speed	143.2 km/h (89.0 mph)

Source: Bikez: XS 400, 1982. Retrieved 2026-09-19. Match confidence: exact.

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