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The original YZ250 of 1974 used an air-cooled 250cc two-stroke engine of 70 mm bore and a 64 mm stroke, which was improved semi-annually. The air-cooled motor was replaced in 1982 with a 249 cc liquid-cooled two-stroke reed-valved engine with a mechanical, rather than servo-driven, YPVS exhaust valve for a wider spread of power.
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.
(Top) 1 First and last bike. ... Yamaha began production of its first 250 cc, two-stroke twin, the YD1. [1] MF-1 (1958) 50 cc, ... YZ Monocross (1975) First ...
The YZ125 has been built with five- or six-speed manual sequential gearbox depending on model year. The 2005 model has a constant-mesh, wet, multiple-disc coil-spring clutch. From 1973 through 2004, the YZ125 had a single backbone frame made from steel. It generally averaged from 176 to 198 lb (80 to 90 kg).
Yamaha YZ250: Class: Motocross: ... 5-speed: Weight: 250 lb (110 kg) First generation: YZ400F 1998–1999 ... The top speed has been recorded at 80 mph stock.
One of the biggest decisions anyone has to make for retirement is where to invest money. If you ask 10 different financial advisors, there is a 100% chance you’ll get 10 different answers. This ...
The Yamaha R3 is an entry-level sport motorcycle in the same range as other 250–400 cc motorcycles like the Kawasaki Ninja 300, Honda CBR300R, and KTM 390 series. [9] [6] It has some design similarity to the R25, such as the engine.
2025 Golden Globes highlights: 'Emilia Pérez,' 'The Brutalist' win top movie honors. Entertainment. USA TODAY. Demi Moore wins first-ever major industry award at Golden Globes: 'I'm just in shock'