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  2. Two-stroke oil - Wikipedia

    en.wikipedia.org/wiki/Two-stroke_oil

    The oil is dyed blue to make it easier to recognize in the gasoline. It appears black in this bottle because it is not diluted. Two-stroke oil (also referred to as two-cycle oil, 2-cycle oil, 2T oil, or 2-stroke oil) is a special type of motor oil intended for use in crankcase compression two-stroke engines, typical of small gasoline-powered ...

  3. Yamaha RD400 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_RD400

    The RD400 is a 399 cc (24.3 cu in) two-stroke air cooled six-speed motorcycle produced by Yamaha from 1976 until 1979. It evolved directly from the Yamaha RD350 . The 350 evolved into the RD400C in 1976, the "D", "E" in '77, '78 respectively and the final model, the white 1979 RD400F.

  4. Automatic lubrication - Wikipedia

    en.wikipedia.org/wiki/Automatic_lubrication

    Oil injection pump on a Yamaha DX100- just behind the carburettor (visible on the left) It is the primary component of two-stroke automatic lubrication system. Amount of two-stroke oil injected by the pump depends on the throttle position. A cable from the throttle is connected to the oil pump indicating throttle's position.

  5. Talk:Two-stroke engine - Wikipedia

    en.wikipedia.org/wiki/Talk:Two-stroke_engine

    This starved the engine of oil, thus causing piston seziure or crank rod failure. 2-stroke oil formulas with versions 2 and 3 have evolved and thus have eliminated the problem. 2-stroke oils are not all the same, some have evolved over time according to the compression inside the cylinder (90 psi to 180 psi) and the amount of distance between ...

  6. Two-stroke engine - Wikipedia

    en.wikipedia.org/wiki/Two-stroke_engine

    Animation of a two-stroke engine. A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two crankshaft revolutions to complete a power cycle.

  7. Yamaha Motor Company - Wikipedia

    en.wikipedia.org/wiki/Yamaha_Motor_Company

    Suzuki ended production of their GT two stroke series, including the flagship water-cooled two-stroke 750cc GT-750 in 1977. Kawasaki, who had considerable success throughout the 1970s with their two-stroke triples of 250cc, 350cc, 400cc, 500cc and 750cc ended production of road-going two strokes in 1980. Yamaha bucked this trend and continued ...