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The YZ125 has a 124 cc (7.6 cu in) reed valve-inducted two-stroke engine. It was air cooled from 1974 to 1980, and liquid cooled since 1981. It has a Mikuni 38 mm TMX series carburetor. [6] The engine produces 35 hp (26 kW). [1] The YZ125 has been built with five- or six-speed manual sequential gearbox depending on model year.
Yamaha Y125Z or better known as Yamaha Z (in Europe, Thailand and Vietnam) is a 125 cc two-stroke moped or underbone motorcycle produced by Yamaha.Debuted in 1998 as a successor of Yamaha Y110SS, the Y125Z was the first two-stroke underbone motorcycle with an YEIS catalytic converter.
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.
Yamaha YA-1. YA-1 built August 1954, produced January 1955. The first bike manufactured by Yamaha was actually a copy of the German DKW RT 125; it had an air-cooled, two-stroke, single cylinder 125 cc engine [1]
During its production run, it underwent three major engineering makeovers. However, the core features were retained. These were: a sophisticated long-travel suspension, a liquid-cooled, two-stroke motor, and a fully-manual five-speed transmission (for 1985–1986 models), and a six-speed transmission (for the '87–'92 models).
In the 21st century the cable jetting technique is used worldwide, from small optical telecom cables (1.8 mm diameter) in small microducts (3 mm internal diameter) up to large copper telecom cables (35 mm diameter) in large ducts (50 mm internal diameter). Jetting is done with a pressure of the compressed air in the order of 10 bar.
Please review the Manual of Style, help improve this section, and discuss this issue on the talk page. ( November 2011 ) ( Learn how and when to remove this message ) Motocross is governed worldwide by the Fédération Internationale de Motocyclisme (FIM), with federations in many nations.
The Yamaha MT-07 (called FZ-07 in North America until 2017) is a MT series standard motorcycle or UJM [8] with a 689 cc (42.0 cu in) liquid-cooled 4 stroke and 8 valve DOHC parallel-twin cylinder with crossplane crankshaft, manufactured by Yamaha Motor Company from 2014 and US release in 2015.