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For example, if the static compression ratio is 10:1, and the dynamic compression ratio is 7.5:1, a useful value for cylinder pressure would be 7.5 1.3 × atmospheric pressure, or 13.7 bar (relative to atmospheric pressure). The two corrections for dynamic compression ratio affect cylinder pressure in opposite directions, but not in equal strength.
The 1977 OW35K was the first race bike to incorporate the power valve system and it won the Finnish GP in 1977. The Kadenacy effect was harnessed and controlled to a point that gave Yamaha great advantage over all the other manufacturers throughout the late '70s and into the mid '80s. The first street bikes with YPVS were the RZ/RD350 YPVS (LC2 ...
In 2005 Yamaha introduced the Royal Star Tour Deluxe, which is the Royal Star Venture without the fairing, radios, or trunk. In 1985 Yamaha introduced the V-Max. The first generation V-Max power package was a modified version of the one used in the Venture Royale. The Royale model is based on the Venture with additional accessories and weight.
If compression is performed by a mechanically driven compressor or blower, this evaporation process is usually referred to as MVR (mechanical vapor recompression). In case of compression performed by high pressure motive steam ejectors, the process is usually called thermocompression, steam compression or ejectocompression. [citation needed]
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. In 1983 Yamaha created a V4 engine that debuted in the Yamaha Venture motorcycle series. The first in the series was the Venture Royale ...
Phazer is the name of a model of snowmobile produced by the Yamaha Motor Company.Introduced in 1984, it became a popular model for Yamaha and spawned several follow-up models (such as the Phazer II, Phazer Deluxe, Phazer Mountain Lite, Phazer FX, and Phazer GT); its design features were also incorporated into other models (such as later-model Exciters as well as the Venture Lite).
The Series 92 engines were introduced in 1974. [8] Compared to the Series 71 engines they were derived from, the Series 92 featured a larger bore of 4.84025 ± 0.00125 in (122.942 ± 0.032 mm) and an identical stroke of 5 in (130 mm) for a nominal displacement per cylinder of 92 cu in (1,510 cc), from which the Series 92 derives its name.
Later Yamaha swapped the 249cc engine for a 246cc engine but little else changed and almost all parts were interchangeable. In the late 1990s Yamaha removed both short track models from the market and only the 136 inch track was available. Yamaha Bravo was an extremely reliable sled and could go 20,000 or more km trouble free.