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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 entered the ATC market in 1980, after paying patent-right to Honda to produce their own version of the All Terrain Cycle. Starting modestly with a 125cc recreational ATC that would remain the foundation of their line through 1985, the YT125 featured a 2 stoke engine with sealed airbox with snorkel intake, an autolube oil injection system, and featured a narrow tunnel above the engine ...
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]
This model had become patent-free after World War II as part of war reparations [3] and was further developed in Britain , USA (Harley-Davidson Hummer), Russia (M-1A Moskva), Japan, Italy and West Germany. 1952 The BK350 appears, the first two-stroke shaft drive. 1956 The works is now called VEB Motorradwerk Zschopau, or MZ for short. [1]
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 YZF-R125; Manufacturer: Yamaha Motor Company: Also called: Yamaha R125: Production: 2008– Predecessor: Yamaha TZR125: Class: Sport bike: Engine: 124.7 cc (7.61 cu in) liquid-cooled 4-stroke 4-valve SOHC single-cylinder engine [1]
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.
To compensate for this, an additional pushing force is applied to the cable by the jetting equipment. The pushing force, acting mainly near the cable inlet, combined with the airflow propelling forces, increases the maximum jetting distance considerably. Special lubricants have been developed for cable jetting to further reduce friction. [5]