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HONDA CB400N (1978-1979) Specs, Performance & Photos

Segment: Naked / Road
Production years: 1978, 1979

HONDA CB400N 1978-1979 2 Photos
HONDA CB400N (1978-1979)HONDA CB400N (1978-1979)

The Honda CB400N was a motorcycle manufactured by the Japanese motorcycle manufacturer from 1978 to 1986. As a successor to the short-lived Dream model, The CB400N featured several revisions that included a six-speed manual transmission and a European style that resembled the CB750F and CB900F.

The CB400N was similar to the smaller CB250N model but different with its larger displacement, dual disc front braking system, halogen headlight, and different markings on the instrument panel that reflected the higher top speed and lower rpm redline.

The model featured a twin-cylinder engine that had three valves per cylinder, two intakes, and one exhaust, set in motion by a chain-driven overhead camshaft. Also, the engine featured two balance shafts that reduced vibrations and coupled to a six-speed manual transmission linked to the rear wheel through a chain final drive.

For suspension and braking performance, the bike packed a telescopic fork with two 239 mm discs squeezed by hydraulic calipers on the front wheel and dual EVO shock absorbers with five-way spring preload adjustability, and a 150 mm drum unit on the rear wheel.

In the performance department, the 1979 Honda CB400N took its thrust from a 395cc four-stroke twin-cylinder air-cooled engine fed by two Keihin carburetors that helped deliver an output power of 34 hp at 9,500 rpm and 29 Nm (21 lb-ft) of torque available at 8,000 rpm.

HONDA CB400N 1978-1979

HONDA CB400N 408

engine specs
Type:Air-cooled, 4 cylinders, 4 strokes, SOHC, 2 valves per cylinder
Displacement:408 cm3
Bore X Stroke:2x1.9 in OR 51 mm
Compression Ratio:-
Horsepower:34/9500 KW(hp)/RPM
Torque:21/8000 lb-ft/RPM OR 28/8000 Nm/RPM
Fuel System:Keihin 21 mm carburetor
transmission specs
Gearbox:6 Speed
Clutch:Multiple discs in oil bath
Primary Drive:-
Final Drive:Chain
chassis specs
Frame:-
Front Suspension:Hydraulic telescopic forks
Rear Suspension:Hydraulic double dumpers
Front Brake:Single 214 mm disc with 1-piston calipers
Rear Brake:Drum
dimension specs
Overall Length:80.7 in OR 2050 mm
Overall Width:27.8 in OR 706 mm
Seat Height:30.7 in OR 780 mm
Wheelbase:53.3 in OR 1354 mm
Ground Clearance:5.9 in OR 150 mm
Weight:407 lbs OR 185 kg
Fuel Capacity:3.7 gallons OR 14.0 L
tyres specs
Front:3.00-18
Rear:3.25-18
power system specs
Power pack:-
Nominal Capacity:-
Maximum Capacity:-
Charger type:-
Charging time (normal):-
Charging time (quick):-
Range:-
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