Gasoline is atomized by carburetor and mixed with air, and then enters the cylinder for combustion to generate electricity. When leaving the factory or after maintenance, the oil-gas ratio has been adjusted to the best state. However, this state is at room temperature. When the temperature is too low in winter, this ratio is not conducive to ignition when starting, and it is necessary to increase the proportion of gasoline.
Motorcycle is realized by controlling the air intake and reducing the air ratio. Air door, also called "choke door", is used to thicken the mixture.
When the weather is cold and the temperature is low, and it is difficult to start the motorcycle, close the air door (the air door is always "open"), start it according to normal operation, and restore the air door by slightly stabilizing the operation of the engine, so that the car can run normally.
Development:
1884, an Englishman, Edward butler, added a power device to his bicycle and made a tricycle powered by kerosene. 1885, the German "father of automobiles" made a three-wheeled motorcycle driven by a single-cylinder air gasoline engine. On August 29th of the same year, he obtained a patent for this invention.
Therefore, Daimler is recognized by the world as the inventor of motorcycles. Daimler's first motorcycle was driven by a four-stroke internal combustion engine. The working pit of the cylinder is 264 cubic centimeters. At 700 revolutions per minute, the power can reach 0.5 horsepower and the speed can reach 65,438+02 kilometers per hour. The car is made of wood, the rear wheel is driven by a belt, and there are auxiliary support wheels on both sides.
In view of Daimler's irreplaceable historical position, after his death, the Wudenberg branch of the German Engineer Association erected his monument in Sheutat Square, where he drove his first motorcycle.