This is from the site Bring a Trailer (https://bringatrailer.com/) ...
This 1982 Honda CB750SC Nighthawk was sold new in Wisconsin and was acquired by a high school teacher in the mid 1980s. A former student inquired about the bike after seeing the teacher at his ten year high school reunion, and became the third owner around 2008. Power is provided by a 750cc inline-four with four carburetors and a factory quad-outlet exhaust, and the bike is equipped with a 5-speed transmission and chain primary drive. Within the last year the bike has received new tires, spark plugs, fork seals, brake pads, and an oil and filter change. This Nighthawk is offered by the selling dealer at no reserve with a factory owner’s manual, tool roll, and a clean Wisconsin title.
The bike is finished in Candy Flair Blue Metallic with a color-keyed frame and factory chrome graphics with red pinstripes. The seller describes some chips and marks, and close-up photos of the finish are provided in the gallery below. Factory wheels measure 16″ front and rear, and were fitted with new Kenda tires within the last year.
The Nighthawk was equipped with a four-into-four exhaust system, with two outlets per side. The bike retains factory lighting, and a repaired seam is visible on the seat. A set of aftermarket foam hand grips are fitted.
Instrumentation includes an 85-mph speedometer, a 10k-rpm tachometer, primary and trip odometers, and a a selection of warning lights. 27k miles are shown on the mechanical odometer, approximately 50 of which were added by the selling dealer.
Power is provided by a 749cc double overhead cam four equipped with a quartet of 30mm Keihin carburetors. The Nighthawk was factory-rated at 70 horsepower with 56 lb-ft of torque, and sends power to the rear wheel via a 5-speed transmission and chain drive. Within the last year the bike received new spark plugs, fork seals, and brake pads, and the selling dealer performed an inspection and an oil and filter change.
The factory owner’s manual is included, and the tool roll is pictured in the gallery. A walk-around and startup video is viewable below.