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  2. 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.

  3. Kawasaki KR-1/KR-1S - Wikipedia

    en.wikipedia.org/wiki/Kawasaki_KR-1/KR-1S

    Engine type: 2-stroke, parallel 2-cylinder, liquid-cooled Frame: Aluminium extruded E-Box frame Electronic variable exhaust valve ( KIPS ) equipment Total Capacity: 249 cc Bore × stroke: 56 × 50.6 mm Maximum output: 55 ps / 10,500 rpm Maximum torque: 3.7 kg-m / 8,500 rpm Length: 2,005 mm Width: 690 mm Overall height: 1,105 mm Seat height: 750 mm

  4. Two- and four-stroke engines - Wikipedia

    en.wikipedia.org/wiki/Two-_and_four-stroke_engines

    The M4+2 engine, also known as the double-piston internal combustion engine, is a type of internal combustion engine invented by Polish patent holder Piotr Mężyk. [1] The M4+2 engine took its name from a combination of two-stroke engines and four-stroke engines. The two-stroke combustion engine is characterized by a simple construction and ...

  5. ILO-Motorenwerke - Wikipedia

    en.wikipedia.org/wiki/ILO-Motorenwerke

    The tamper machine was sold to Krupp in 1922 to concentrate on motors for motorcycles and small trucks. 1927 a bicycle auxiliary motor was developed and, in 1929 two-stroke ILO engines for agriculture tillers and pumps. In 1930s engines for three-wheel delivery vans were a big hit. 1940–59.

  6. Yamaha FZ750 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_FZ750

    Given a design brief that the engine (in race configuration) should develop at least the same power as the two stroke TZ750. [3] The FZ750 would be the first motorcycle in what would become the Genesis concept where the advanced liquid-cooled multi-valve engine and perimeter type steel chassis would be designed to function together to provide ...

  7. New Hudson (company) - Wikipedia

    en.wikipedia.org/wiki/New_Hudson_(company)

    A racing version of the 2-stroke was introduced for 1921, capable of 50 mph. [9] At the 1921 Olympia show New Hudson unveiled their first 4-stroke since the war, a 4.5HP single cylinder sidecar outfit. The side-valve engine had a bore of 86mm and stroke of 100mm giving 594cc.

  8. Suzuki LT250R - Wikipedia

    en.wikipedia.org/wiki/Suzuki_LT250R

    The Suzuki LT250R was a sport/racing ATV manufactured between 1985 and 1992. [1] It combined a lightweight fully suspended frame with a 249cc liquid cooled two stroke engine. Nicknamed by Suzuki as the QuadRacer, it revolutionized the (ATV industry). [2] Before this model was released, the ATV racing world was dominated by three-wheelers.

  9. Yamaha TZR250 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_TZR250

    TZR 250 2MA modified for racing. The Yamaha TZR250 is a motorcycle manufactured and produced by the Japanese motorcycle manufacturer Yamaha between 1986 and 1995. [3] Yamaha produced the road going two-stroke motorcycle, loosely based on the TZ250 Yamaha racing bike. Parallel-twin, reverse cylinder and finally 90° V-twin variants were produced.