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Yamaha started development of the OX66 in 1984 [1] as a design concept for a lightweight and compact Formula Two engine with a wide power band.. At the time of development, both BMW and Honda provided engines for F2 (in the form of the M12/7 inline-four and the RA260E V6 respectively), but Honda's engine yielded superior results despite limited use.
Basic parts of an outboard motor. An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method of propelling small watercraft.
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 ...
The T55-L7 powerplant creates high speed rotational energy, which is transferred through a gearbox at around 50% gear reduction to reduce propeller RPM. Unlimited hydroplanes are capable of speeds of 200+ mph on the straightaways and qualifying average lap speeds range from 130–165 mph. Modern hulls are constructed of composite materials such ...
The YZ series of motocross bikes has a mechanical power valve which is activated at RPM speed. The YPVS is only found on the liquid-cooled bikes not air cooled versions. Yamaha have also used a guillotine version in some of their later models such as the 1994 TZR250 3XV SP model, and many later TZ road race bikes.
A typical turbocharged V8 diesel engine might have an engine power of 250 kW (340 hp) and a mass of 380 kg (840 lb), [1] giving it a power-to-weight ratio of 0.65 kW/kg (0.40 hp/lb). Examples of high power-to-weight ratios can often be found in turbines.
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It appeared in production on the 1974 Yamaha YZ-250, a model which is still in production, making it Yamaha's longest continuous model and name. Yamaha continued racing throughout the 1960s and 1970s with increasing success in several formats. The decade of the 1970s was capped by the XT500 winning the first Paris-Dakar Rally in 1979. [13]
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