Honda CB 650SC Nighthawk




Make Model

Honda CB 650SC Nighthawk


1982 - 83


Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder.


655 cc / 39.9 cu-in
Bore x Stroke 60 x 58 mm
Cooling System Air/oil cooled
Compression Ratio 9.5:1


4x Keihin 29mm carburetors


Starting Electric

Max Power

72 hp / 54 kW @ 10000 rpm
Max Power Rear Tyre 62 hp @ 8500 rpm

Max Torque

Wet plate


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 ¼ Mile  

13.29 sec / 157.7 km/h

Top Speed

122 mph / 196 km/h

Road Test Cycle 1982

Nighthawk defined: A bird to steal in the dead of the night.

Once upon a time, a committee at Honda had a pretty intriguing idea. Looking around at gruisers on the one hand and sport bikes on the other, the think-tank members wondered whether they could blend elements of cruiser styling with those trom functional sport bikes. The Nighthawk became a bird apart—a functional motorcycle with an arresting appearance. In 1982, the Nighthawk, priced at $2748, was a bargain. Still, the motorcycle looked unusual.

Nineteen-eighty-three stretched the boundaries of taste. Once enthusiasts decided motorcycles didn't have to have a particular look, tastes proved downright eclectic: Shadows, Interceptors, Gold Wings, Magnas, etc.

Beneath the Nighthawk trappings lies Honda's basic eight-valve, single-overhead-cam, four-cylinder 650; this engine has roots in the original 500/550 series which is to say, Honda has more than a decade of experience building these motorcycles. The 650s are as reliable as stones and may last longer.

Think of the 650 Nighthawk as a motorcycle for worriers who hate to worry. Worriers-gather themselves up to full fret at the thought of sixteen-valve engines, secondary radiators, and the possibility that they'll arrive at the parts counter an hour after the last part was sold. Six-fifty Nighthawk owners rest assured that every mechanic who can pronounce the word "Honda" knows something about the CB650.

Although the new-generation 1983 Nighthawk has superseded the eight-valve Nighthawk series, Honda engineers kept the 1982 650 current to the end. The leading-axle front fork carries Syntallic bushings for stiction-free action, and Honda's latest front disc brakes with twin-piston calipers are first rate. The front suspension is t able: air-adjustable fork. The twin i shocks have two-stage rear damp and five spring-preload positions. 1 handlebar adjusts some too, abc 30mm vertically and 25 degrees b zontally. Nice.

Six-fifties are easily strong enough split cross country on a moment's r tice. They offer a kind of forty-cub I inch guarantee of freedom. Undf most circumstances, however, peop! who get these 650s for $2161 are pr( sumed to have visited their dealers i the witching hour. And to have a pu suit party on their tails. I

Source Cycle 1982