1974 Honda Cb400f Super Sport on 2040-motos
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Simi Valley, California, US
Honda CB tech info
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Honda CB description
This bike has good compression, has been sitting, has a little rust in take, carbs will
need to be cleaned, fluids will need to be flushed, will be an easy restoration project.
Any questions that you have on this bike just go ahead and send us a message. To be clear we are not paying for shipping. Although we can assist, with the shipping. Possibly finding a pallet for the bike, and using our preferred shipping company. To help you through the process. If you have never shipped a bike before.
Description:
The Honda CB400F Super Sport
In 1969 Honda released the CB750, although it was not the first four cylinder motorcycle or have the largest capacity, it certainly left it's mark as the number one superbike. Fitted with a front disc brake, electric start & indicators as standard it paved the way for years to come. In 1971 Honda introduced a scaled down version,the CB500 followed by the CB350F in 1972. The CB350F was introduced in the US but it never really caught on, and was dropped from production in 1974. The CB350F was not marketed in the UK.
The Honda CB400F (aka the 400/4 or 400 four super sport), was introduced for 1975. It was a compact bike which was developed from, and improved on the previous CB350F, with uprated performance via an increased bore from 47mm to 51mm, bringing capacity up to 408cc, larger valves, and a six speed gearbox, it also had updated styling with a neat offset chrome 4 into 1 exhaust system, a flatter angular fuel tank & flat side panels with transfers instead of badges, low handle bars, slightly rearset footrests and a studded seat,
This gave the bike a sporty cafe racer look and feel, ride and handling were said to be excellent at the time. All this brought together a universal bike which was easy and exiting and smooth to ride in various situations, giving you a feeling of control, riding in harmony with a thoroughbred, and the press loved it.
For the European/UK market first there was the F available from 1975 in Light ruby red or Varnish blue, early F models up to frame number 1056883 had the pillion foot rests mounted on the rear swinging arm, (pillion assisted suspension! ) later F models which ran to frame number 1073399 had them mounted to the frame.
In 1977 the F2 was available in Parakeet yellow or Candy antares red (metallic). These also had striping to the tank. and solid lettering with an outline to the side panels. F2 models ran frame number 1073400.
Just in case you were wondering antares is a red supergiant star, & a parakeet is a large type of budgie, Maybe Honda intended the red one for the touring & the yellow one for flying to the cafe"
There was also a F1 in 1976 model which was not marketed in the UK or Europe, these were finished in Light ruby red or Parakeet yellow & had black side panels.
Not long after the 400/4 hit the road, it was regularly appearing on the race track. There were many aftermarket parts available such as the Yoshimura big bore kit & modified camshafts. Other companies offered performance exahusts, electronic ignition, uprated shocks & brakes, as well as cafe style seats & drop bars.
The 400 four is equipped with a side stand and a center stand which is handy for maintainence. It also has an electric start & a kick start, you have to flip up the right foot rest to use the kick start. This is handy if the battery is low, as the starter robs the voltage to the ignition coils. It's a easy to start this way, as easy kicking up any 125, it bursts into life without any effort, no messing about tickling carbs, cranking over 3.5 times, finding compression, praying etc.
After starting the bike from cold, it needs to warm up on part choke for a few minutes before setting off, or you could find yourself fumbling with the choke whilst riding.
Although
it does pull well from the start, the engine is high revving, giving
peak power of 37bhp at 8,500rpm, with a redline at 10,000rpm & with 6
gears to choose from you'll find your left foot is kept busy if you
want to make the most of it. It accelerates well from 0-70mph, steadily
from 70-90mph and eventually from 90 onwards. The Seating position is
slightly bent forward, giving a dominant street fighter feel, which
is well balanced at normal speeds, but at high speeds above 80mph, you
get the urge to crouch over the tank and reduce the wind drag.
The 400 four was dropped from production at the end of 1977 due to the high cost of manufacture & competition from it's less costly Japanese rivals, the Yamaha RD400, the Suzuki GT380, the Kawasaki KH400 & the Kawasaki Z400. The reason that cost more to build was probably due to the complexity of the engine, which had 4 cylinders, 4 carbs & it was a four stroke so needed 8 valves a camshaft and cam chain, as opposed to the competions 2 & 3 cylinder two strokes, & the Z400's 2 cylinder 4 stroke.
In 1978 Honda introduced the CB250N & CB400N Superdream twins, leaving CB400N to fill the void left by the CB400F.
Many years have passed since, and although it was only available for just over 3 years, there were around 105,000 produced. Plenty of these have survived, The light middlewieght 4 stroke has become quite desirable & fasionable once again, gaining respect in the classic market, with it's smart looks, reliability, practicality, reasonable fuel consumption, good spares back up, plus it's just right for a ride to the cafe bike meeting. But above all, it's a Honda.
Specifications
Engine
Type SOHC 4 cylinder 4 stroke
Bore x stroke 51 x 50mm
Capacity 408cc
Compression 9.4:1
Lubication Wet sump
Carburation 4x 20mm Keihin
Bhp at rpm 37@ 8,500 rpm
Max torque 24ft/lbs @ 7,500 rmp
Gearbox 6 Speed
Clutch Wet multi-plate
Starting Electric & kick
Charging Output: 156w
Battery 12v 12AH
PERFORMANCE
Top Speed 95 mph - 103mph (crouched down, arms & legs tucked in)
0-60: 6.70 seconds
Standing 1/4: 14.71 sec @ 86.04 mph
RPM @ 60mph 5465
Fuel consumption 49.7 mpg overall 42 mpg ridden hard
Chassis
Wheelbase 53.30 in 1355mm
Seat Height 31.10 in 790mm
Ground clearance 6 in 150mm
Kerb weight 392 lbs 178kg
Fuel capacity 3.1 imp gals 14ltr
Front Tyre 3.00S-18
Rear Tyre 3.50S-18
Front Brake Single 10.25in disc
Rear Brakes 6.3 x 1.2"drum
Front Suspension Telescopic fork
Rear Suspension Swing arm, adjustable hydraulic shocks
Instrumentation Speedometer with trip, Tachometer, Oil lamp, Neutral lamp
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