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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.
It was originally built in Japan, as a 2-stroke model until 2001. It is now assembled by Sundiro Honda Motorcycle Co., Ltd. in China. It is composed of four-stroke lines: the AF-series 50 cc (3.1 cu in) (SK50) and the JF-series 110 cc (6.7 cu in) (NSC110) are now assembled in China.
Racing engines based from bored up FE engine, the displacement was increased from 958 cc to 1261 cc with new 78.0 mm bore size from FA engine. This new engine was known as R92A and used for powering the 1965-1966 Daihatsu P3 and 1967 Daihatsu P5 race cars.
Other split-single models from TWN were the 1954-1957 TWN Cornet (200 cc with 12 volt electrics and optionally electric starter), the 1953-1957 TWN Boss (350 cc) with 2 carburetors and the 1954-1957 Contessa scooter (200 cc). [1] The bulbous shape of the exhaust of the Cornet and Boss is an anti-noise two-stroke TWN feature.
The DKW F102 is a passenger car that was produced from August 1963 to 1966 by the German manufacturer Auto Union.Superseding the Auto Union 1000, it was the last model branded as a DKW by the manufacturer and also one of the last West German production car equipped with a two-stroke engine, the last being the Goggomobil.
Designed to succeed Honda's first two-stroke Grand Prix racer, the NS500 triple, NSR500 debuted in 1984 for the Grand Prix motorcycle racing's 500 cc class. Building on lessons learned from its three-cylinder predecessor, the new 90° V4 used a single crankshaft, making it lighter and more compact than its dual-crankshaft adversaries.
It is the first of Honda's tilting three-wheelers, and has the primary features of the type. It is a scooter-like single occupant vehicle with an automatic transmission and a "one push" parking brake. It has a small hinged rear pod containing the 49 cc 2-stroke engine and two drive wheels powered through a limited slip differential.
It was fitted to all of the later models of the RZ/RD two-stroke road bikes (125, 250, 350 and 500 cc), the TZR range. It was also added to the DT(125lc 2/3) range after 1984 (but was locked closed to comply with UK learner regulations until the (R) in 1988-04 which had a fully functional YPVS valve) the DT125R has a better design of engine ...