General information
Model:	Yamaha SR 500 G (cast wheels)
Year:	1981
Category:	Classic
Engine and transmission
Displacement:	499.00 ccm (30.45 cubic inches)
Engine type:	Single cylinder
Stroke:	4
Power:	27.00 HP (19.7 kW)) @ 6000 RPM
Compression:	9.0:1
Bore x Stroke:	87.0 x 84.0 mm (3.4 x 3.3 inches)
Valves per cylinder:	2
Fuel control:	OHC
Cooling system:	Air
Gearbox:	5-speed
Transmission type final drive:	Chain
Physical measurements
Weight incl. oil, gas, etc:	174.0 kg (383.6 pounds)
Chassis and dimensions
Front tyre dimensions:	3.50-19
Rear tyre dimensions:	4.00-18
Front brakes:	Single disc
Rear brakes:	Expanding brake
Speed and acceleration
Top speed:	135.0 km/h (83.9 mph)
Other specifications
Fuel capacity:	12.00 litres (3.17 gallons)