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Honda CB400F (1975)

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Honda CB400F (1975)

At a glance

Capacity
408 cc / 24.8 cu-in
Power
37 hp / 27.5 KW @ 8500 rpm
Seat height
790 mm / 31.1 in

The full picture.

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

Motorcycle technical specifications
Year1975
EngineFour stroke, transverse four cylinder, SOHC, 2 valve per cylinder.
Capacity408 cc / 24.8 cu-in
Bore x Stroke51 50 mm
Cooling SystemAir cooled
Compression Ratio9.4:1
LubricationWet sump
Induction4x 20mm Mikuni carburetors
IgnitionBattery and coil
StartingElectric & kick
Max Power37 hp / 27.5 KW @ 8500 rpm
Max Toque24 ft-lb / 32.5 Nm @ 7500 rpm
Transmission6 Speed
Final DriveChain
ClutchWet multi-plate
Front SuspensionTelescopic forks
Rear SuspensionDual shocks preload adjustable
Front BrakesSingle 267mm disc
Rear Brakes160mm drum
Front Tyre3.00-18
Rear Tyre3.50-18
InstrumentationSpeedometer with trip, Tachometer, Oil lamp, Neutral lamp
Wheelbase1355 mm / 53.3 in
Seat Height790 mm / 31.1 in
Ground Clearance150 mm / 5.9 in
Wet Weight185 kg / 407 lbs
Fuel Capacity14 Litres / 3.7 US gal
Fuel Consumption49.7 mpg
Standing 1/414.71 sec @ 86.04 mph
Acceleration 0-606.70 sec
Top Speed103 mph