General information
Model:	Yamaha SR 400
Year:	2002
Category:	Naked bike
Engine and transmission
Displacement:	399.00 ccm (24.35 cubic inches)
Engine type:	Single cylinder
Stroke:	4
Power:	27.00 HP (19.7 kW)) @ 7000 RPM
Torque:	29.00 Nm (3.0 kgf-m or 21.4 ft.lbs) @ 6500 RPM
Compression:	8.5:1
Bore x Stroke:	87.0 x 67.2 mm (3.4 x 2.6 inches)
Fuel system:	Carburettor
Valves per cylinder:	2
Fuel control:	SOHC
Cooling system:	Air
Gearbox:	5-speed
Transmission type final drive:	Chain
Physical measurements
Dry weight:	152.0 kg (335.1 pounds)
Seat height:	790 mm (31.1 inches) If adjustable, lowest setting.
Overall height:	1,105 mm (43.5 inches)
Overall length:	2,085 mm (82.1 inches)
Overall width:	750 mm (29.5 inches)
Ground clearance:	140 mm (5.5 inches)
Wheelbase:	1,410 mm (55.5 inches)
Chassis and dimensions
Front tyre dimensions:	90/100-18 54S
Rear tyre dimensions:	110/90-18 61S
Front brakes:	Single disc
Rear brakes:	Expanding brake
Speed and acceleration
Power/weight ratio:	0.1776 HP/kg
Other specifications
Fuel capacity:	12.00 litres (3.17 gallons)