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Yamaha RD350 YPVS is a motorcycle that Yamaha made from 1983 to 1986. It was launched at the Cologne motorcycle show as "the nearest thing to a road going racer ever produced". [1] It had a parallel-twin two-stroke engine with identical bore and stroke of its predecessor, the Yamaha RD350LC.
The TZR250R 3XV SPR actually uses a Triple-YPVS, which is a combination of the guillotine and "cotton reel" designs. Yamaha was actually the first company to produce consistent results with their YPVS in their race bikes. The 1977 OW35K was the first race bike to incorporate the power valve system and it won the Finnish GP in 1977.
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.
The Yamaha RZ350 is a two-stroke motorcycle produced by Japanese motorcycle manufacturer Yamaha between 1983 and 1996. Available in the US from 1983 to 1985, Canada until 1990 and Brazil until 1996. The RZ was the final evolution of the popular and well-known series of RD Yamaha motorcycles, and as such is also known as the RD350LC II or RD350 ...
The Yamaha RD250 is a 250 cc (15 cu in) 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.
Yamaha YZR500. The RD500LC (Race Developed 500CC Liquid Cooled motorcycle) uses a 50-degree, twin-crankshaft V4 engine layout.Linked Yamaha YPVS exhaust power valves are controlled by a single electronic unit and servo motor and are designed to give a broader power band.
NON takes non-alcoholic wine to a new level with its innovative blends and rich, complex flavors. The brand’s wines are made with natural ingredients like fruits, spices, and botanicals ...
The Yamaha TZR125 is a two-stroke 125 cc (7.6 cu in) 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.