Suzuki 120 (B100/B100P/B120)

I have gathered some Suzuki B100 / B100 P / B120 info on this page. I would be grateful of any contributions — sales brochures, magazine ads, magazine articles, pictures, specs, facts, corrections etc. Please scan the material in JPEG format (large enough that all the details are visible) and send them to me. Please tell me the source and the publication date if possible. If you send me pictures of your own bike, please follow these instructions.

Suzuki B100 was a lightweight 118cc motorcyle with a single-cylinder 2-stroke enigine and a pressed steel frame, launched in May 1965. Its high-performance 118cc air-cooled engine was mounted on a surprisingly light and strong body giving the bike dry mass of 88 kg (194 lbs). Although the the model name was B100, the engine displacement was 118cc.  The bike was easy to ride because the maximum torque of 10.8 Nm (1.1 kg-m/7.95 ft-lb)) was generated already at 4,000 rpm. The durability of the engine was improved by adopting an aluminium cylinder with a cast-iron cylinder liner. The fuel economy was also good, Suzuki boasted that it could be run between Tokyo and Osaka with a full tank of fuel. A 6V flywheel magneto for both ignition and lights was mounted on the left end of the crank. Contact breaker points were mounted behind the flywheel rotor, making it difficult to change or even adjust the points. The B100 was available in Red, Black and Blue color schemes and with or without the luggage rack. The premium model Suzuki B100P had the Posi-Force lubrication system that eliminated the need of per-mixing oil and gasoline. The oil reservoire was placed inside the right side cover. It had a ”Posi-Force” emblem and an oil level window. The engine side cover had different form. Both versions used a Mikuni VM20 carburetor. The main jet size on the B100P was 95 while the petroil B100 had a larger 110 jet to ensure sufficient lubrication.

1965 Suzuki B 100 Overall Length: 1 905 mm (74.9 in) Overall Width: 665 mm (26.2 in) Overall Height: 965 mm (37.9 in) Wheelbase: 1 220 mm (48.0 in) Ground Clearance: 150 mm (5.9 in) Dry Weight: 88 kg (194 lbs) Engine: Air-cooled 118 cc 1-cylinder 2-stroke (pre-mix fuel). 4 speeds. 9.0 hp @ 7 000 rpm, 10.8 Nm (1.1 kg-m) @ 4 000 rpm Click on the image for larger format.

1965 Suzuki B 100 P Overall Length: 1 905 mm (74.9 in) Overall Width: 665 mm (26.2 in) Overall Height: 965 mm (37.9 in) Wheelbase: 1 220 mm (48.0 in) Ground Clearance: 150 mm (5.9 in) Dry Weight: 88 kg (183 lbs) Engine: Air-cooled 118 cc 1-cylinder 2-stroke. 4 speeds. The B100P had the Posi-Force lubrication system. 9.0 hp @ 7 000 rpm, 10.8 Nm (1.1 kg-m) @ 4 000 rpm Here's even larger picture.

In 1966, the second year after its release, the bike's model name was changed to B120, while the bike itself remained unchanged. Outside Japan, the bike was being sold as B100P for a few years. In fact, hardly any of the B100 models was sold outside Japan. For example, it was already May 1966 when the B100P was first launced in the UK. The Suzuki B100P was marketed with a nickname ”Magnum” in the USA. In UK, the model received a nickname ”Bloop” that stuck, even when the model name was changed from B100P ti B120. The original version of the Suzuki B120 was discontinued in Japan in 1967 but was relaunched again in the seventies. Althought not available in the shops in japan, the simple and inexpensive model was still available in some parts of the world in the eighties. In the UK, the B120 was marketed as the ”Student” from the mid-seventies.

1966 Suzuki B 120 P Overall Length: 1 905 mm (74.9 in) Overall Width: 665 mm (26.2 in) Overall Height: 965 mm (37.9 in) Wheelbase: 1 220 mm (48.0 in) Ground Clearance: 150 mm (5.9 in) Dry Weight: 88 kg (183 lbs) Engine: Air-cooled 118 cc 1-cylinder 2-stroke. 4 speeds. The B100P had the Posi-Force lubrication system. 9.0 hp @ 7 000 rpm, 9.6 Nm (0.98 kg-m) @ 4 000 rpm Click on the image for larger format.

1967 Suzuki B 120 Overall Length: 1 905 mm (74.9 in) Overall Width: 665 mm (26.2 in) Overall Height: 965 mm (37.9 in) Wheelbase: 1 220 mm (48.0 in) Ground Clearance: 150 mm (5.9 in) Dry Weight: 88 kg (183 lbs) Engine: Air-cooled 118 cc 1-cylinder 2-stroke. Posi-Force lubrication system, 4 speeds. 9.0 hp @ 7 000 rpm, 9.6 Nm (0.98 kg-m) @ 4 000 rpm Click on the image for larger format.

1967 Suzuki B 100 P Magnum Overall Lenght: 1 905 mm (74.9 in) Overall Height: 965 mm (37.9 in) Wheelbase: 1 220 mm (48.0 in) Ground Clearance: 150 mm (5.9 in) Dry Weight: 86 kg (190 lbs) Engine: Air-cooled 118 cc piston-port 2-stroke, Posi-Force. 10.0 hp @ 7 000 rpm, 8.82 lb-ft @ 5 500 rpm 4-speed transmission. Click on the image for larger format.

1968 Suzuki B100P sales brochure (4 pages). Click to enlarge. This brochure was scanned and sent to me by Keld Hansen, Denmark. Printed in Japan, February 1968.

1976 Suzuki year code: A

1976 Suzuki B 120 Overall Lenght: 1 905 mm (75.0 in) Overall Width: 665 mm (26.2 in) Overall Height: 965 mm (38.0 in) Wheelbase: 1 120 mm (44.1 in) Dry Weight: 85 kg (187 lbs) Engine: Air-cooled 118 cc piston valve single cylinder 2-stroke. 10 hp @ 7 000 rpm, 1,1 kg-m (7.95 ft-lb) @ 5 000 rpm, 65mph, 100mpg. Click on the image for larger format.

1976 Suzuki B 120 Overall Lenght: 1 905 mm (75.0 in) Overall Width: 665 mm (26.2 in) Overall Height: 965 mm (38.0 in) Wheelbase: 1 120 mm (44.1 in) Dry Weight: 85 kg (187 lbs) Engine: Air-cooled 118 cc piston valve single cylinder 2-stroke. 10 hp @ 7 000 rpm, 1,1 kg-m (7.95 ft-lb) @ 5 000 rpm, 65mph, 100mpg. Click on the image for larger format.

More: Suzuki B series

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