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Honda CB400F


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Honda CB400F
Manufacturer Honda
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Contents

INTRO

After introducing the four-cylinder string of lighter fours featuring engines as small as 350 cc (CB350 Four, CB500 Four), and this 408 cc Four.

For the most part, the CB400F was simply an upgraded version of the 350 model from the previous year. The most striking change was the swoopy four-into-one exhaust system that snaked around the frame, converging into a single muffler on the right side of the bike. Also noticeable were the angular fuel tank and flat cafe-style handlebars, all of which gave the bike a more racer-like look and feel than the rather pedestrian 350.

Although aimed at the sporting segment of the market, the CB400F came up a little short in the performance department compared to the competition, most notably the quick but noisy two-stroke triples from Kawasaki. But whatever the CB400F engine lacked in power it made up for in refinement, the small-displacement four-stroke being smooth and less audibly irritating than a two-stroke. To help keep the engine in its power band, Honda employed a six-speed transmission—something of a rarity at the time.

It should also be noted that the CB400F was a very successful Motorcycle in club or privateer racing. Kaz Yoshima and other racers were able to take Honda's little 408cc engine up to 490cc and with the addition of other racer options, this small bore was considered a 'giant killer'.


1977 CB400F
The famous header


1975


The Honda Super Sport 400 designated CB400F0 was sold in 1975. Two colors were available: Light Ruby Red and Varnish Blue. The fuel tank and side covers were painted one of the basic colors. The exhaust system was a 4-into-1. The handlebars were low. The engine was a 408cc 4-stroke SOHC inline four cylinder with four carburetors. The transmission was a 6-speed. The serial number began CB400F-1000001.

1976

1976 Honda CB400F


The CB400F'76 was sold in 1976 and was available in two colors: Light Ruby Red or Parakeet Yellow. The gas tank was the basic color (red or yellow), but the side covers were black. The exhaust system was a 4-into-1. The handlebars were low. The engine was a 408cc 4-stroke SOHC inline four cylinder with four carburetors. The transmission was a 6-speed. The serial number began CB400F-2000001.

1977

1977 Honda CB400F
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow
1977 Honda CB400F in Parakeet Yellow


The CB400F'77 was sold in 1977 and was available in two colors: Candy Antares Red or Parakeet Yellow. The gas tank stripes were gold and orange on the red bike, but black and red on the yellow bike. The gas tank filler cap was recessed. The handlebars were raised. The exhaust system was a 4-into-1. The engine was a 408cc 4-stroke SOHC inline four cylinder with four carburetors. The transmission was a 6-speed. The serial number began CB400F-2100001.

1989

1989 Honda CB400F


The CB400F'89 CB-1 was sold in 1989 in just one color: Pearl Presto Blue. The exhaust system was a 4-into-1. The camshafts were gear driven. The engine was a 399cc DOHC 4-valve liquid cooled inline 4 cylinder linked to a 6-speed transmission. The serial number began JH2NC270*KM000010.

1990

1990 Honda CB400F


CB400F'90 CB-1 was sold in 1990 in just one color: Pearl Presto Blue. The "CB-1" tank logo was red. The exhaust system was a 4-into-1. The camshafts were gear driven. The engine was a 399cc DOHC 4-valve liquid cooled inline 4 cylinder linked to a 6-speed transmission. The serial number began JH2NC270*LM100010.


See Also


Engine 408cc transverse four
Bore & Stroke 51mm x 50mm
Compression Ratio 9.4 : 1
Carburetors Four 20mm Keihin (piston valve)
Ignition Kettering- coils, points, and condensors
Starter Kick and Electric
Transmission Six Speed
Wheelbase 53.3 inches (1355mm)
Seat Height 31.1 inches (790mm)
Fuel Capacity 3.7 gallons, including 0.88 gallon reserve
Wheels 18in. Spoke Type
Tires Front: 3.00S - 18 tubed

Rear: 3.50S - 18 tubed

Brakes Front: Single disc

Rear: Drum

Weight Dry: 375 pounds (170 kg)

Wet 390 pounds (178 kg)


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