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The swingarm rear suspension system featured more than 12" of travel, while the telescopic inverted front forks had 11.8 inches (300 mm) of travel. [2] In the 2005 model year, the YZ250 gained a new frame made from aluminum that reduced the dry weight to approximately 212 lb (96 kg). All YZ250s feature front and rear hydraulic disc brakes.
A parts book, parts catalogue or illustrated part catalogue is a book published by a manufacturer which contains the illustrations, part numbers and other relevant data for their products or parts thereof. Parts books were often issued as microfiche, though this has fallen out of favour.
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 primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...
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[29] [30] From 1993 to 1995, the SHO engine was produced in 3.0 and 3.2 Liter versions. Yamaha jointly designed the 3.4 Liter DOHC V-8 engine with Ford for the 1996–99 SHO. Ford and Yamaha also developed the Zetec-SE branded 4-cylinder engines used in several Ford cars like the small sports car Ford Puma .
YDS-3 (1964) 246 cc, two-stroke, parallel-twin, it used the world's first oil injection lubrication system in a 2-stroke engine. [2] DT-1 (1968) Yamaha's first true off-road motorcycle. [1] XS-1 (1970) Yamaha's first four-stroke engine motorcycle (650 cc twin). [3] YZ Monocross (1975) First production motocross bike with a single rear shock. [3]
The Yamaha YZ250F is a motocross motorcycle first released in 2001 by Yamaha.It features a DOHC, four-stroke engine and initially had a steel frame and subframe in 2001–2002.
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.