The Honda CB650SC Nighthawk is a motorcycle produced from 1982-83, featuring a four stroke, transverse four cylinder, DOHC, 2 valves per cylinder engine with a capacity of 655cc. It has a compression ratio of 9.5:1 and 4x Keihin 29mm carburetors. The Nighthawk features a shaft final drive and a Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive front suspension, and a dual Showa shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping rear suspension. It has a front and rear brakes consisting of 2x 275mm discs and 180mm drum, respectively. The Nighthawk has a standing ¼ mile time of 13.29 seconds with a top speed of 122mph. The motorcycle has a fuel capacity of 13.5 Liters and an average consumption of 50.4 mpg. The dry weight of the Nighthawk is 205 kg, and the wet weight is 223 kg. The seat height of the Nighthawk is 780mm and has a wheelbase of 1457mm. The maximum power produced by the motorcycle is 72 hp, with a maximum torque of wet plate. The motorcycle has a maximum power of 54 kW at 10,000 rpm and a maximum power rear tyre of 62hp at 8,500 rpm.
Technical specifications:
Make Model: Honda CB 650SC Nighthawk
| Year | 1982 – 83 |
|---|---|
| Engine | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder. |
| Capacity | 655 cc / 39.9 cu-in |
| Bore x Stroke | 60 x 58 mm |
| Cooling System | Air/oil cooled |
| Compression Ratio | 9.5:1 |
| Induction | 4x Keihin 29mm carburetors |
| Ignition | Transistorized |
| Starting | Electric |
| Max Power | 72 hp / 54 kW @ 10000 rpm |
| Max Power Rear Tyre | 62 hp @ 8500 rpm |
| Max Torque | Wet plate |
| Transmission | 5 Speed |
| Final Drive | Shaft |
| Front Suspension | Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive |
| Rear Suspension | Dual Showa shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping |
| Front Brakes | 2x 275mm discs 2 piston calipers |
| Rear Brakes | 180mm Drum |
| Front Tyre | 100/90 -19 |
| Rear Tyre | 130/90 -16 |
| Seat Height | 780 mm / 30.7 in |
| Wheelbase | 1457 mm / 57.8 in |
| Dry Weight | 205 kg / 451 lbs |
| Wet Weight | 223 kg / 491.6 lbs |
| Fuel Capacity | 13.5 Litres / 3.4 US gal |
| Consumption Average | 50.4 mpg |
| Standing 1/4 Mile | 13.29 sec / 157.7 km/h |
| Top Speed | 122 mph / 196 km/h |
