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Motorcycles with a V-twin engine mounted with its crankshaft mounted in line with the frame, e.g. the Honda CX series, are said to have "transverse" engines, [1] [2] while motorcycles with a V-twin mounted with its crankshaft mounted perpendicular to the frame, e.g. most Harley-Davidsons, are said to have "longitudinal" engines.
The Yamaha XV1900A cruiser was developed to exploit the large displacement end of the market for large cruisers.Yamaha had a well established range of big "Star" cruisers which went up to the Wild Star 1600 cc but there was a need to redesign the engine to meet anticipated exhaust emissions regulations and the opportunity to update the styling, which had remained largely unchanged for a decade.
The engine is a detuned Fazer engine and both versions are offered with optional ABS braking. The new line has upgraded to a liquid-cooled 16 valve 4-stroke forward-inclined parallel 4-cylinder engine developing 78 horsepower (57 kW) / 59.7 Nm. Yamaha has kept the engine displacement at 600cc for the new Diversion line. [3]
"Cutaway of Yamaha Genesis inline-four 20-valve engine" The DOHC Genesis engine has five valves per cylinder and downdraft carburetors. Yamaha adopted the 5-valve concept, using three intake valves and two exhaust valves per cylinder, because it allowed both excellent volumetric efficiency and high RPM. As designers began to appreciate the ...
The Yamaha XV1000 or Virago 1000 was a Yamaha V-twin cruiser motorcycle. The XV920 was redesigned in 1984 and engine size increased to 981 cc (59.9 cu in) resulting in the renamed XV1000 . Made from 1984 through 1985, it was part of Yamaha's Virago line of cruisers.
The machines participating in Grand Prix motorcycle racing, since its origin in 1949, have been entered into distinct classes depending primarily on engine capacity. The smallest engines and two-stroke engines have been phased out over the years.
The Yamaha XV1000 SE or Midnight Special is a special edition Yamaha V-twin cruiser motorcycle. The XV920 was made from 1983 to 1985 and was based on Yamaha's Virago line of V-twin cruisers that are part of Yamaha's XV generation first launched in 1981. [ 2 ]
The Yamaha XMAX is a series of maxi-scooters manufactured by Yamaha Motor Company since 2006. [1] It is available in four engines (the 125, 250, 300 and the 400 cm3), and is enjoying strong commercial success in Europe. It belongs to the GT category because of its lines, its sportiness and its comfort. [2]