The Honda CB350 was a four-cylinder four-stroke 348cc road bike based on the larger fours. Thought of as Hondas "one-up" to the other Motorcycle companies. It was only produced from 1972-74, it was replaced by the larger and sportier 400 four the following year. Although Honda had a 350 Twin that was more powerful, lighter, cheaper, and faster. The four-cylinder version was much smoother running and stylish and remains one of the smallest and most sophisticated mass produced four-cylinder designs. Internal frictional losses sapped a lot of the power. The 350F and 400F models have since gained a cult following in the Motorcycle community.
Also called | Four |
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Top speed | 97 mph |
Horse Power | 34 hp @10,000rpm |
Related | Honda CB350K |
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Manufacturer | Honda |
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Production | 1972 - 73 |
Engine | Four stroke, transverse four cylinder, SOHC, 2 valve per cylinder. |
Compression ratio | 9.3:1 |
Ignition type | Coil and breaker points |
Transmission | Final Drive: Chain |
Frame type | Simple tubular steel cradle, split under the engine |
Suspension | Front: Television hydraulic forks, 114mm wheel travel. Rear: Dual chocks, adjustable pre constraint (3 positions), 91 mm wheel trave. |
Brakes | Front: Single 260mm disc Rear: Drum |
Front Tire | 3.00-18 |
Rear Tire | 3.50-18 |
Wheelbase | 1350 mm / 53.3 in |
Seat height | 790 mm / 31.0 in |
Weight | 160 kg / 352.7 lbs (dry), 178 kg / 392.4 lbs (wet) |
Fuel capacity | 12 Liters / 3.1 US gal |
Manuals | Service Manual |
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Engine
The engine was a Air cooled cooled Four stroke, transverse four cylinder, SOHC, 2 valve per cylinder.. The engine featured a 9.3:1 compression ratio.
Chassis
It came with a 3.00-18 front tire and a 3.50-18 rear tire. Stopping was achieved via Single 260mm disc in the front and a Drum in the rear. The front suspension was a Television hydraulic forks, 114mm wheel travel. while the rear was equipped with a Dual chocks, adjustable pre constraint (3 positions), 91 mm wheel trave.. The CB350F Four was fitted with a 12 Liters / 3.1 US gal fuel tank. The bike weighed just 160 kg / 352.7 lbs. The wheelbase was 1350 mm / 53.3 in long.
- Redline: 10,000rpm
1972-73
The Honda CB350F0 Four was sold in 1972-73. Two colors were available: Candy Bacchus Olive and Flake Matador Red. The fuel tank stripes were white and orange. The "350 Four" side cover emblem was red and white. The exhaust system was a 4-into-4 (two pipes and mufflers on each side of the bike). The engine was a 347cc 4-stroke inline four cylinder with 4 carburetors. The transmission was a 5-speed. The serial number began CB350F-1000001.
1974
The CB350F1 was sold in 1974 in one color: Glory Blue Black Metallic. The gas tank stripes were gold. The "350 FOUR" side cover emblem was white and orange. The exhaust system was a 4-into-4 (two pipes and mufflers on each side of the bike). The engine was a 347cc 4-stroke inline four cylinder with 4 carburetors. The transmission was a 5-speed. The serial number began CB350F-2000001.