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| Manufacturer | Honda |
|---|---|
| Also called | Nighthawk 650 |
| Production | 1982–1985 |
| Class | Standard |
| Engine | 656 cc (40.0 cu in) DOHC, air/oil-cooled inline four |
| Power | 72 hp (54 kW) at 10,000 rpm [citation needed] |
| Ignition type | Electric start |
| Transmission | 6-speed (mechanics) |
| Frame type | Tubular steel full cradle |
| Suspension | Front: Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive Rear: dual Showa shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping |
| Brakes | Front: Dual single-action hydraulic calipers, 10.9 in (276 mm) discs Rear: Drum, single-leading shoe, rod-operated |
| Rake, trail | 3.86 in (98 mm) |
| Wheelbase | 57.8 in (1,470 mm) |
| Seat height | 30.7 in (780 mm) |
| Weight | 451 lb (205 kg)[citation needed] (dry) |
| Fuel capacity | 12.9 L (2.8 imp gal; 3.4 US gal)), (0.5 US gallon reserve) |
| Fuel consumption | 29–55 mpg (US)[citation needed] |
| Related | CB700SC |
The CB650SC (also called the Nighthawk 650) is a Honda standard motorcycle sold in the US from 1982 to 1985.
In 1982, the Nighthawk replaced the Custom of the previous years and featured a re-designed tank and side covers. In 1983-1985 a new DOHC engine replaced the SOHC engine used from 1979-1982. The new engine had hydraulic valve lash adjusters and was rubber mounted. This year also saw the move from chain drive to shaft-drive for this model.