A two-strokeengine is a type of internal combustion engine that completes a power cycle with two strokes of the piston in one revolution of the crankshaft. A four-stroke engine requires four strokes of the piston to complete a power cycle in two crankshaft revolutions. In a two-stroke engine, the end of the combustion stroke and the beginning of the compression stroke happen simultaneously, with the intake and exhaust functions occurring at the same time.
Yamaha Motor Co., Ltd. is a Japanese mobility manufacturer that produces motorcycles, motorboats, outboard motors, and other motorized products. The company was established in the year 1955 upon separation from Nippon Gakki Co., Ltd. and is headquartered in Iwata, Shizuoka, Japan. The company conducts development, production and marketing operations through 109 consolidated subsidiaries as of 2012.
The RD350 is a two-stroke motorcycle produced by Yamaha from 1973 to 1975. It evolved directly from the piston port, front drum-braked, five-speed Yamaha 350 cc "R5".
The Yamaha SRX is a motorcycle that was manufactured from 1985 to 1997 by the Yamaha Motor Company. Not to be confused with the Yamaha Sidewinder SRX, which is a snowmobile.
A motorcycle engine is an engine that powers a motorcycle. Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankels and electric motors, have been used.
The Yamaha FZR1000 is a motorcycle produced by Yamaha from 1987 to 1995. Classed as a sports motorcycle.
The Yamaha WR450F is an off-road motorcycle made by Yamaha Motor Company. It currently has a 450 cc (27 cu in) liquid-cooled single-cylinder engine. First offered in 1998 at 400cc, it shared many components and design concepts with the YZ400F motocross model. It is basically the racing YZ450F detuned slightly for more controllable power, with a headlight and lighting coil, softer suspension, a kickstand, lower noise specifications, larger radiators and lower emissions. The WR in the name indicates a wide-ratio gear box common to most enduro or trail bikes and stands in contrast to the close-ratio gearbox essential to a motocross racer. Over the years the WR has benefited from the advances made in the YZ motocross version gaining displacement and advancements such as an aluminum frame and improved suspension. Over much of its life the weight of the WR450F has remained fairly constant ranging from 244 to 249 pounds dry weight.
The Yamaha YZ450F is a four-stroke racing motocross bike built by Yamaha Motor Corporation. It was the successor to the previous YZ426F which was discontinued in 2003. It is credited by Cycle World and Dirt Rider magazines as the bike that started the four-stroke dirt bike revolution. The 2006 YZ250F and YZ450F were the first production motorcycles equipped with titanium suspension springs.
The Yamaha Royal Star Venture is a luxury touring motorcycle built by the Yamaha Motor Company. It is a premier touring motorcycle manufactured in two forms by Yamaha from 1983 to 1993 and from 1999 to 2013.
The FS1 is a Yamaha moped of the 1970s. Various letter suffixes were added to indicate model variation to suit local regulations, such as the FS1-E for England, FS1P/DX NL and others.
The Yamaha RD500LC is a high-performance, two-stroke sports motorcycle, also known as the RZ500 in Canada and Australia. A lightened but detuned version known as the RZV500R was developed for the Japanese home market. Strict United States Environmental Protection Agency regulations meant that the RZ500 was not available for sale in that country. Produced for a short period between 1984 and 1986 it has become a sought after collector's machine.
In 1996 Yamaha introduced the Royal Star motorcycle. This motorcycle uses the basic power package from the Yamaha Venture Royale.
Yamaha RS-100T Torque induction series, also known as RS-100 series, is a series of two-stroke motorcycle models manufactured by Yamaha Motors Co. Ltd as a successor of the Philippines' most popular 2T motorcycle/tricycle model. It debuted in 1977 especially for the Asian market. While the older Yamaha RS-100 uses a pressed steel frame that also acts as the main body, the RS-100T uses steel tubes for the frames and metal cover sets for the body.
The Yamaha YA-1 is the first motorcycle produced by the Yamaha Motor Company. It was made from 1955 to 1958. This was also the first vehicle in Japan to have a primary kick start system. The Society of Automotive Engineers of Japan(in Japanese), includes the 1955 Yamaha 125YA-1 as one of their 240 Landmarks of Japanese Automotive Technology.
The Yamaha XV1900A is a motorcycle manufactured by the Yamaha Motor Company and sold in the United States through Yamaha's Star Motorcycles division. It was the largest Yamaha motorcycle while in production.
The Yamaha V series are two-stroke step-through motorcycles made by the Yamaha Motor Company. There were a number of different engine capacities to suit different sections of the market. The bike was primarily released to compete with the ever-popular Honda Super Cub. It is also very similar to the Suzuki FR50.
The Yamaha R5 is a motorcycle made by Yamaha for production years 1970 (R5), 1971 (R5B) and 1972 (R5C). It was the first iteration of a new generation of horizontally split crankcase two strokes that also included the RD350 and culminated in the RD400. The engine platform also included the 250cc variants (DS7/RD250). Two earlier generations of sporting 250cc and larger displacement air-cooled two strokes preceded the R5 dating back to 1959.
The RD400 is a 399 cc (24.3 cu in) two-stroke air cooled six-speed motorcycle produced by Yamaha from 1976 until 1979. It evolved directly from the Yamaha RD350. The 350 evolved into the RD400C in 1976, the "D", "E" in '77, '78 respectively and the final model, the white 1979 RD400F. Models for the USA had a smaller tank with slightly different shape and only had points ignition until the introduction of the RD400 Daytona.
The Yamaha TZ 250 was a commercially available racing motorcycle with a watercooled, two-stroke, 250 cc engine produced by the Japanese manufacturer Yamaha.
