Honda CB 650 SC Nighthawk - 1983 Specifications and Reviews

1983

General information
Category	Sport touring
Year	1983
Model	Honda CB 650 SC Nighthawk

Engine and Transmission Specifications
Clutch	wet, multi-plate clutch actuates hydraulically
Transmission typefinal drive	Shaft drive (cardan)
Gearbox	6-speed
Cooling system	Oil & air
Lubrication system	wet sump
Starter	Electric
Ignition	Solid state
Fuel control	DOHC
Valves per cylinder	4
Fuel system	Carburettor. Honda says 32mm; technically they are Keihin 29mm
Bore x stroke	60.0 x 58.0 mm (2.4 x 2.3 inches)
Compression	9.5:1
Max RPM	10000
Power	63.00
Stroke	4
Engine type	In-line four
Capacity:	655.00 ccm (39.97 cubic inches)

Physical measures and capacities
Wheelbase	1,461 mm (57.5 inches)
Seat height	790 mm (31.1 inches) If adjustable, lowest setting.
Dry weight	197.0 kg (434.3 pounds)
Honda CB 650 SC Nighthawk dimensions and frame
Exhaust system	4-2 double muffler
Rear brakes diameter	40 mm (1.6 inches)
Rear brakes	Expanding brake (drum brake). single-leading-shoe rear brake
Front brakes	Double disc. (2) 2- piston calipers, with TRAC system
Rear tyre dimensions	130/90-16
Front tyre dimensions	100/90-19
Rear suspension	two VHD shocks with four-way adjustable damping
Front suspension travel	39 mm (1.5 inches)
Front suspension	Air-adjustable, leading-axle forks with dual Syntallic bushings
Speed and acceleration
Power/weight ratio	0.3198 HP/kg
Other specs
Color options	Pearl Siren Blue and Candy Wineberry Red
Fuel consumption pr. 10 km (6.2 miles)	5.88 litres (1.55 gallons)
Reserve fuel capacity	1.89 litres (0.50 gallons)
Fuel capacity	12.86 litres (3.40 gallons)