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Yamaha TZR250
The Yamaha TZR250 is a motorcycle manufactured and produced by the Japanese motorcycle manufacturer Yamaha between 1986 and 1995. Yamaha produced the road going two-stroke motorcycle, loosely based on the TZ250 Yamaha racing bike. Parallel-twin, reverse cylinder and finally 90° V-twin variants were produced. It evolved as a natural replacement for the popular RD 250/Yamaha RD350LC series of the 1980s. It has the Yamaha Power Valve System 'YPVS' which raises and lowers the exhaust port depending on the rpm of the engine. The YPVS servo motor starts to open at about 6,000rpm. In standard form it produced 45 hp due to the restrictive standard exhausts and ignition boxes. Racing The TZR250 was still raced in the Yamaha Past Masters race series with the British racing club (BMCRC The British Motorcycle Racing Club (BMCRC), informally Bemsee, is the largest motorcycle racing club of its type in the UK and organises a range of championships including Clubman and Supersport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha Motor Company
is a Japanese multinational manufacturer of motorcycles, marine products such as boats and outboard motors, and other motorized products. The company was established in 1955 upon separation from Yamaha Corporation (however, Yamaha Corporation is still the largest private company shareholder with 9.92%, as of 2019), and is headquartered in Iwata, Shizuoka, Japan. The company conducts development, production and marketing operations through 109 consolidated subsidiaries as of 2012. Led by Genichi Kawakami, the company's founder and first president, Yamaha Motor spun off from musical instrument manufacturer Yamaha Corporation in 1955 and began production of its first product, the YA-1 125cc motorcycle. It was quickly successful and won the 3rd Mount Fuji Ascent Race in its class. The company's products include motorcycles, scooters, motorized bicycles, boats, sail boats, personal water craft, swimming pools, utility boats, fishing boats, outboard motors, 4-wheel ATVs, recreat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycle World
''Cycle World'' is a motorcycling magazine in the United States. It was founded in 1962 by Joe Parkhurst, who was inducted to the Motorcycle Hall of Fame as "the person responsible for bringing a new era of objective journalism" to the US. ''Cycle World'' was the largest motorcycling magazine in the world. The magazine is headquartered in Irvine, California. Regular contributors include Peter Egan and Nick Ienatsch. Previous or occasional contributors have included gonzo journalist and author Hunter S. Thompson, journalist and correspondent Henry N. Manney III, and professional riding coach Ken Hill. Parkhurst sold ''Cycle World'' to CBS in 1971. CBS executive Peter G. Diamandis and his associates bought CBS Magazines from CBS in 1987, forming Diamandis Communications, which was acquired by Hachette Magazines the following year, 1988. In 2011, Hachette sold the magazine to Hearst Corporation, which in turn sold ''Cycle World'' to Bonnier Corporation Bonnier LLC (formerl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha RD250
The Yamaha RD250 is a two-stroke motorcycle produced by Yamaha Motor Corporation between 1973 and 1987. Four generations of RD (also known as the RZ250 in the Japanese and Australian markets) were produced: the air-cooled models from 1973 up to 1979, and from 1980 until 1987 the liquid cooled models; known as the RD250LC, RD250LC-II and RD250 YPVS. The name RD stood for Race Developed. The standard bike weighed 152 kg dry and had a 247cc 2-stroke twin engine that produced 30 hp. It had a 6 speed gearbox and chain final drive. In 1983 the UK government reduced the maximum cc for learners to 125, killing off the 250 cc motorcycle class in a stroke. At the time, it was considered that the reason for the sudden change in the law was the RD250 which put a high-speed vehicle into the hands of inexperienced users. References RD250 The Yamaha RD250 is a two-stroke motorcycle produced by Yamaha Motor Corporation is a Japanese multinational manufacturer of moto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sport Bike
A sport bike (sports motorcycle, or sports bike) is a motorcycle designed and optimized for speed, acceleration, braking, and cornering on asphalt concrete race tracks and roads. They are mainly designed for performance at the expense of comfort, fuel economy, and storage in comparison with other motorcycles. Sport bikes can be and are typically equipped with fairings and a windscreen to deflect wind from the rider to improve aerodynamics. Soichiro Honda wrote in the owner's manual of the 1959 Honda CB92 Benly Super Sport that, "Primarily, essentials of the motorcycle consists in the speed and the thrill," while ''Cycle World''s Kevin Cameron says that, "A sportbike is a motorcycle whose enjoyment consists mainly from its ability to perform on all types of paved highway – its cornering ability, its handling, its thrilling acceleration and braking power, even (dare I say it?) its speed." Motorcycles are versatile and may be put to many uses as the rider sees fit. In the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha TDR 250
The Yamaha TDR250 was a street-legal middleweight dual-sport bike produced by Japanese motorcycle manufacturer Yamaha between 1988 and 1993. It was powered by the naturally-aspirated, crankcase reed-valve inducted, liquid-cooled 249cc parallel-twin two-stroke engine A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of t ... from the first generation TZR250 (this same engine also powered the R1-Z). This engine featured the 'YPVS' Yamaha Power Valve System, CDI ignition and digital spark advancebr> Almost all of the engine, gearbox, and electrical components are interchangeable with the TZR and R1-Z. The TDR was designed to provide agile handling and quick acceleration both on and off the road, and power delivery was modified to suit its intended us The special upswept expansion ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha TZR125
The Yamaha TZR125 is a two-stroke sports motorcycle made for the European and South East Asian markets which uses the YPVS. The TZR125 was produced from 1987 and spanned two generations until the late 1990s each with a number of variants and sub variants. The Yamaha TZR125 can be seen in Wong Kar-Wai’s Fallen Angels where actor and singer Takeshi Kaneshiro drives it. First generation Yamaha introduced the TZR125 in 1987 and production ended in 1992. It is identified by the single square headlight at the front of the box fairing, clip-ons located on top of the yoke, single seat and conventional forks. Later TZR's can be identified by three-spoke alloy wheels and a rear disc brake. The first generation has a number of variants: 2RH; 2RJ; 2RK; 2RL; 2RM; 2RN; 2TU; 2UT; 2VR; 3FN; 3PA; 3PB; 3PC; 3PD; 3PE; 3SY; 3TY. First Generation TZR 4dl 1 (R) In 1991, Yamaha introduced the R series of TZR125s which have very little in common with the previous generation. Known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha TZR250 2MA Modified For Racing
Yamaha may refer to: * Yamaha Corporation, a Japanese company with a wide range of products and services, established in 1887. The company is the largest shareholder of Yamaha Motor Company (below). ** Yamaha Music Foundation, an organization established by the authority of Japanese Ministry of Education for the purpose of promoting music education and music popularization ** Yamaha Pro Audio, a Japanese company specializing in products for the professional audio market * Yamaha Motor Company, a Japanese motorized vehicle-producing company. The company was established in 1955 upon separation from Yamaha Corporation (above), and is currently one of the major shareholders of Yamaha Corporation (See: Cross ownership). ** Yamaha Júbilo, a Japanese rugby team ** Yamaha Stadium is a football stadium located in Iwata, Shizuoka, Iwata City, Shizuoka Prefecture, Japan, owned by Yamaha Motors, next to whose plant it is located, and was purpose-designed for use with soccer and rugby union ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Engine
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of the crankshaft. A four-stroke engine requires four strokes of the piston to complete a power cycle during 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 (or scavenging) functions occurring at the same time. Two-stroke engines often have a high power-to-weight ratio, power being available in a narrow range of rotational speeds called the power band. Two-stroke engines have fewer moving parts than four-stroke engines. History The first commercial two-stroke engine involving cylinder compression is attributed to Scottish engineer Dugald Clerk, who patented his design in 1881. However, unlike most later two-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RD 250
The Yamaha RD250 is a two-stroke motorcycle produced by Yamaha Motor Corporation between 1973 and 1987. Four generations of RD (also known as the RZ250 in the Japanese and Australian markets) were produced: the air-cooled models from 1973 up to 1979, and from 1980 until 1987 the liquid cooled models; known as the RD250LC, RD250LC-II and RD250 YPVS. The name RD stood for Race Developed. The standard bike weighed 152 kg dry and had a 247cc 2-stroke twin engine that produced 30 hp. It had a 6 speed gearbox and chain final drive. In 1983 the UK government reduced the maximum cc for learners to 125, killing off the 250 cc motorcycle class in a stroke. At the time, it was considered that the reason for the sudden change in the law was the RD250 which put a high-speed vehicle into the hands of inexperienced users. References RD250 The Yamaha RD250 is a two-stroke motorcycle produced by Yamaha Motor Corporation between 1973 and 1987. Four generations of RD (also kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha RD350LC
The Yamaha RD350LC was a two-stroke motorcycle produced by Yamaha between 1980 and 1983. Although it immediately succeeded the larger RD400, the RD350LC was powered by a smaller 347cc parallel twin two-stroke engine which actually had the same bore and stroke as the older RD350 (64 x 54mm). However, Yamaha added liquid cooling and made other modifications in porting and exhaust to comply with ever-tightening emissions regulations. The RD350LC was later replaced by the RZ350 / RD350LC II / RD350 YPVS in 1983, but the LC(1) was also sold in that year alongside the new bike. The RD350LC was aimed at the European market alongside the smaller capacity Yamaha RD250LC. The 1980 to 1982 350 cc models were codenamed 4L0 and are affectionately known as ''Elsie''.Henshaw 2001, p. 414. This model was not officially sold in the US but was available in neighbouring Canada. Yamaha debuted their breakthrough YPVS power valve system that revolutionized the two-stroke engine in the RD350 YPVS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Power Valve System
{{Unreferenced, date=February 2018 The two-stroke power valve system is an improvement to a conventional two-stroke engine that gives a high power output over a wider RPM range. Operation of a two-stroke engine A ''stroke'' is the action of a piston travelling the full length of its cylinder. In a two-stroke engine, one of the two strokes combines the intake stroke and the compression stroke, while the other stroke combines the combustion stroke and the exhaust stroke. As the piston travels upward in the cylinder, it creates low pressure area in the crankcase; this draws fresh air and atomized fuel from the carburetor through a hole in the cylinder wall or directly into the crankcase. As the piston continues travelling upward, transfer ports and the exhaust ports are closed off, thus trapping the combustible mixture in the combustion chamber. As the piston reaches the top of the cylinder, the mixture in the cylinder is compressed to the point of ignition. The second stroke beg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMCRC
The British Motorcycle Racing Club (BMCRC), informally Bemsee, is the largest motorcycle racing club of its type in the UK and organises a range of championships including Clubman and Supersport 600, Thunderbikes, Superstock 1000, Formula 400s and sidecars. History Founded in 1909, it was originally based at the classic Brooklands circuit near Weybridge in Surrey. During the 1960s the offices were at Kingston, Surrey and are now located in Romford, Essex. It is the oldest motorcycle racing club in the world. Many champions have emerged from starting out in the homemade Aprilia Superteens championship for example: *Two Time world superbike champion James Toseland *Double MotoGP champion Casey Stoner *Moto2 Racer Bradley Smith *Moto3 Racer Danny Webb *MotoGP Racer and 2009 Supersport Champion Cal Crutchlow Racing Classes (2019) In 2019, the BMCRC had classes available, based on machine type and rider age. Some classes also had sub-classes determined by various factors s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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