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An early example of a semi-automatic motorcycle transmission was the use of an automatic centrifugal clutch in the early 1960s by the Czechoslovakian manufacturer Jawa Moto. [83] Their design was used without permission in the 1965 Honda Cub 50 , which resulted in Jawa suing Honda for patent infringement and Honda agreeing to pay royalties for ...
Other applications of semi-automatic transmissions on motorcycles include the Yamaha FJR1300AE sport-touring motorcycle, with the YCCS automatic clutch system, Honda's range of 2- and 3-speed Hondamatic semi-automatic transmissions, used on various motorcycles throughout the 1970s and 1980s, and the three-wheeled BRP Can-Am Spyder Roadster ...
Yamaha recommend that this device be used with the Yamaha VL70m Virtual Acoustic Tone Generator. The WX7 was the first model that Yamaha produced, beginning in 1987. [ 43 ] This was followed by the WX11 in 1993, [ 44 ] and then the WX5 in 1999—2001. [ 45 ]
The motorcycle division of Yamaha was spun off in 1955, being incorporated on 1 July 1955 in Japan, [7] and was headed by Genichi Kawakami. Yamaha's initial product was a 125 cc (7.6 cu in) two-stroke, single cylinder motorcycle, the YA-1, which was a copy of the German DKW RT 125.
This was the first Yamaha V50 and was one of the first models to be sold along with the V70 and the V90. The original V50 had a 49 cc (3.0 cu in) two-stroke engine with a three speed semi-automatic gearbox and could reach speeds of about 35–40 mph (56–64 km/h).
The first bike manufactured by Yamaha was actually a copy of the German DKW RT 125; it had an air-cooled, two-stroke, single cylinder 125 cc engine [1] YC-1 (1956) was the second bike manufactured by Yamaha; it was a 175 cc single cylinder two-stroke. [1] YD-1 (1957) Yamaha began production of its first 250 cc, two-stroke twin, the YD1. [1]
semi-automatic transmissions are also in use; where the driver's input is still required for shifting gears, but the clutch system is controlled and operated automatically. These systems are mostly found on smaller dirt bikes (e.g., minibikes ; such as pit bikes ), underbones , many older mopeds and scooters, and various other types of motorcycles.
The Yamaha XT500 is a twin-valve single-cylinder enduro-adventure motorcycle made by Yamaha from 1975 until 1989. It shares its power plant with the street version SR500 and its off-road brother, the Yamaha TT500. All parts such as the transmission and chassis were produced in Japan.