Fuel Injection Nozzle Maintenance
When to clean requires specific selection - control of the amount of fuel injection: For the same type of electronic fuel injection vehicle, the pressure of the gasoline pump is constant. Regardless of the opening of the throttle, as long as it is adjusted by the fuel pressure regulator, the pressure of Motorcycle Fuel Injector is always constant. The fuel injector is strictly matched with the fuel pump and the fuel pressure regulator. Only when the designed pressure is reached can the fuel injector achieve the best atomization effect. If the pressure is lower than the designed pressure, the sprayed oil is not mist-like, but columnar, and it is not easy to mix with the air; if the pressure is too high, the sprayed oil is in the shape of a cone, which is not easy to mix, and the force of the injection is too large, a lot of fuel is directly sprayed onto the pipe wall, which directly affects the mixing ratio parameters.
Whether accelerating or idling, the pressure should be constant. The pressure of different models is also different (the selection of several gears of the cleaning machine mentioned by a friend is actually the pressure selection for different models, not the pressure of acceleration and idling. The wrong selection of the injection pressure will cause poor atomization of the fuel injector). The amount of fuel injection depends on the length of the injection time. According to the different control methods of the electromagnetic coil, the fuel injector is divided into two types: voltage-driven and current-driven.
The voltage type is also divided into low resistance and high resistance. The high resistance can be connected to 12V, and the low resistance can only be connected to low voltage. If it is connected to 12V for a long time, the coil will burn. When injecting fuel, the voltage provided by the computer is constant, for example, 12V. When the fuel is cut off, it immediately becomes 0V. This change is instantaneous, just like the concept of 0 and 1 in computer language, and there is no 0.5 in the middle. In other words, this is a pulsating direct current signal, not a term such as alternating current. What is the concept of alternating current? Alternating current is only when positive and negative are interlaced. It seems that except for the part before the generator rectifier, the motorcycle basically cannot be exposed to alternating current. When the injector is blocked, the fuel injection is not smooth, or there is carbon deposit and adhesive in the gap of the injector, the designed injection amount or atomization effect cannot be achieved, and cleaning is required.
