Honda CB400F (1975)

The Honda CB 400F is a classic motorcycle model that originated in 1975. It has a 408cc, four-stroke, transverse four-cylinder engine with a SOHC and two valves per cylinder. It has a compression ratio of 9.4:1 and uses air-cooling equipped with 4x 20mm Mikuni carburetors for induction. The motorcycle has a maximum power output of 37 hp at 8500 rpm and a maximum torque of 24 ft-lb at 7500 rpm. It has a six-speed transmission and a chain final drive, and a wet multi-plate clutch. The front suspension uses telescopic forks while the rear uses dual shocks that are preload adjustable. The front brakes use a single 267mm disc while the rear brakes use a 160mm drum. The CB 400F has a wheelbase of 1355mm and a seat height of 790mm. The ground clearance sits at 150mm, with a wet weight of 185kg. The fuel tank has a capacity of 14 litres, and the motorcycle provides a fuel consumption rate of 49.7 mpg. The instrumentation includes a speedometer, tachometer, oil lamp, and neutral lamp. The bike’s standing quarter-mile record is 14.71 seconds at 86.04mph, reaching a top speed of 103 mph.

Technical specifications:

Make Model: Honda CB 400F

Year: 1975

Engine: Four stroke, transverse four cylinder, SOHC, 2 valve per cylinder.
Capacity: 408 cc / 24.8 cu-in
Bore x Stroke: 51 50 mm
Cooling System: Air cooled
Compression Ratio: 9.4:1
Lubrication: Wet sump
Induction: 4x 20mm Mikuni carburetors
Ignition: Battery and coil
Starting: Electric & kick
Max Power: 37 hp / 27.5 KW @ 8500 rpm
Max Toque: 24 ft-lb / 32.5 Nm @ 7500 rpm
Transmission: 6 Speed
Final Drive: Chain
Clutch: Wet multi-plate
Front Suspension: Telescopic forks

Rear Suspension: Dual shocks preload adjustable
Front Brakes: Single 267mm disc
Rear Brakes: 160mm drum
Front Tyre: 3.00-18
Rear Tyre: 3.50-18
Instrumentation: Speedometer with trip, Tachometer, Oil lamp, Neutral lamp
Wheelbase: 1355 mm / 53.3 in
Seat Height: 790 mm / 31.1 in
Ground Clearance: 150 mm / 5.9 in
Wet Weight: 185 kg / 407 lbs
Fuel Capacity: 14 Litres / 3.7 US gal
Fuel Consumption: 49.7 mpg
Standing 1/4: 14.71 sec @ 86.04 mph
Acceleration 0-60: 6.70 sec
Top Speed: 103 mph

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