General information
Model:	Yamaha XS 400 DOHC
Year:	1986
Category:	Touring
Engine and transmission
Displacement:	399.00 ccm (24.35 cubic inches)
Engine type:	Twin
Stroke:	4
Power:	45.00 HP (32.8 kW)) @ 9500 RPM
Compression:	9.7:1
Bore x Stroke:	69.0 x 53.4 mm (2.7 x 2.1 inches)
Valves per cylinder:	2
Fuel control:	DOHC
Cooling system:	Air
Gearbox:	6-speed
Transmission type final drive:	Chain
Physical measurements
Weight incl. oil, gas, etc:	187.0 kg (412.3 pounds)
Chassis and dimensions
Front tyre dimensions:	3.00-18
Rear tyre dimensions:	4.10-18
Front brakes:	Single disc
Rear brakes:	Expanding brake
Speed and acceleration
Top speed:	168.0 km/h (104.4 mph)
Other specifications
Fuel capacity:	18.00 litres (4.76 gallons)