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Motorcycles Specs > Honda > Honda CB 650 SC Nighthawk

Honda CB 650 SC Nighthawk Specs

The Honda CB 650 SC Nighthawk model is a Sport touring bike manufactured by Honda . In this version sold from year 1983 , the dry weight is 197.0 kg (434.3 pounds) and it is equiped with a In-line four, four-stroke motor. The engine produces a maximum peak output power of 63.00 HP (46.0 kW) @ 9000 RPM and a maximum torque of  . With this drive-train, the Honda CB 650 SC Nighthawk is capable of reaching a maximum top speed of  . Regarding the chassis characteristics, responsible for road holding, handling behaviour and ride confort, the Honda CB 650 SC Nighthawk have a  frame with front suspension being Air-adjustable, leading-axle forks with dual Syntallic bushings and in the rear suspension it is equiped with two VHD shocks with four-way adjustable damping . Stock tire sizes are 100/90-19 on the front, and 130/90-16 on the rear. As for stopping power, the Honda CB 650 SC Nighthawk braking system includes Double disc. (2) 2- piston calipers, with TRAC system size  at the front and Expanding brake (drum brake). single-leading-shoe rear brake size 40 mm (1.6 inches) at the rear. 

Honda CB 650 SC Nighthawk General Information

Brand Honda 
Model Honda CB 650 SC Nighthawk 
Year 1983 
Year 1983 
Category Sport touring 
Factory Warranty (Years / miles)  

Honda CB 650 SC Nighthawk Dimensions, Aerodynamics and weight

Frame type  
Seat details  
Wheelbase 1,461 mm (57.5 inches) 
Seat Height 790 mm (31.1 inches) If adjustable, lowest setting. 
Alternate Seat Height  
Ground Clearance  
Trail size  
Wheels details  
Front Tyres - Rims dimensions 100/90-19 
Rear Tyres - Rims dimensions 130/90-16 
Front brakes Double disc. (2) 2- piston calipers, with TRAC system 
Rear brakes Expanding brake (drum brake). single-leading-shoe rear brake 
Front Brakes Dimensions - Disc Dimensions  
Rear Brakes Dimensions - Disc Dimensions 40 mm (1.6 inches) 
Curb Weight (including fluids)  
Dry Weight 197.0 kg (434.3 pounds) 
Front Percentage of Weight  
Rear Percentage of Weight  
Weight-Power Output Ratio : 0.3198 HP/kg 
Fuel Tank Capacity 12.86 litres (3.40 gallons) 
Reserve Fuel Capacity 1.89 litres (0.50 gallons) 
Carrying Details and Capacity  
Front Suspension Air-adjustable, leading-axle forks with dual Syntallic bushings 
Front Suspension Travel 39 mm (1.5 inches) 
Rear Suspension two VHD shocks with four-way adjustable damping 
Rear Suspension Travel  

Honda CB 650 SC Nighthawk Engine and Transmission Technical Data

Engine type - Number of cylinders In-line four, four-stroke 
Engine details  
Fuel system Carburettor. Honda says 32mm; technically they are Keihin 29mm 
Engine size - Displacement - Engine capacity 655.00 ccm (39.97 cubic inches) 
Bore x Stroke 60.0 x 58.0 mm (2.4 x 2.3 inches) 
Compression Ratio 9.5:1 
Number of valves per cylinder
Camshaft Valvetrain Configuration DOHC 
Maximum power - Output - Horsepower 63.00 HP (46.0 kW) @ 9000 RPM 
Maximum torque  
Engine Maximum RPM 10000 
Cooling system Oil & air 
Lubrication system wet sump 
Engine oil capacity  
Exhaust system 4-2 double muffler 
Gearbox 6-speed 
Transmission type, final drive ratio Shaft drive (cardan) 
Clutch type wet, multi-plate clutch actuates hydraulically 

Honda CB 650 SC Nighthawk Performance

Top Speed  
Acceleration 0 to 100 km/h (0 to 62 mph)  
Acceleration 0 to 400m (1/4 mile)  
Recuperation 60 to 140 km/h in highest gear  
Fuel Consumption - MPG - Economy - Efficiency 5.88 litres/100 km (17.0 km/l or 40.00 mpg) 
CO2 emissions 136.4 CO2 g/km. (CO2 - Carbon dioxide emission) 

Honda CB 650 SC Nighthawk Electrical Systems, Ignition and Equipment

Ignition Type Solid state 
Electrical Details  
Starter Type Electric