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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.
The only moving parts inside simple two-stroke engines are the crankshaft, the connecting rod, and the piston. It is the same simplicity in design, however, that causes a two-stroke engine to be less fuel-efficient and produce high specific levels of undesirable exhaust gas emissions. At the bottom of the power stroke, the transfer ports, which ...
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
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.
Maicoletta scooter Maicoletta Dash. The Maicoletta motor scooter of the 1950s was one of the largest motor scooters produced by any manufacturer until the modern era. [7] The engine was a single cylinder 247cc piston-port two-stroke (an export version featuring a 277cc engine was also produced for use with a sidecar), with four foot-operated gears, enclosed chain drive, centrifugal fan cooling ...
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.
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.
In spite of the huge success of the 269 cc two-stroke, the four-stroke engine had not completely been shelved, as in October 1914, J.H Motors of Oldham announced [3] two motorcycles, the No.1 fitted with a 2.75 hp Villiers four-stroke engine of 349 cc (74.5 x 80 mm bore and stroke), and a 2.5 hp two-stroke model using the Villiers 269 cc engine ...