How to see if the scooter is EFI?
(2) Check whether there is a carburetor. If there is one, it is not an EFI motorcycle. The EFI motorcycle has no carburetor, and the original one is composed of throttle body and fuel nozzle. Any car has an oil pump, an EFI and a carburetor, depending on whether the throttle or the carburetor is connected to the intake pipe.
(3) Take the motorcycle frame number to official website for verification. Many motorcycles have a special "motorcycle authenticity verification" in official website. You can enter the frame number for verification.
(4) Start-up detection method: The EFI vehicle has self-check function when starting up. When the key door is opened (ignition is not turned on), the tachometer and code meter will react, the pointer will move, and the liquid crystal will change the value. When the EFI motorcycle is self-checking, you can listen to whether there is an electrical working sound and whether it makes an oil pumping sound. If there is an engine self-check and you hear the sound of the oil pump, you can basically conclude that it is an EFI motorcycle.
(5) Oil supply detection mode: EFI is generally active oil supply. Open the fuel tank cover, open the key door (without ignition) and listen to the fuel tank port immediately. If there is a sound of oil absorption, it is EFI.
(6) Identification method of EFI device: EFI motorcycle will have ECU, oxygen sensor, MAP sensor line and other components, and non-EFI motorcycle will not be used. Many of these parts can be seen from the surface, because most of the motorcycle engine, frame and other parts are exposed outside, which is convenient for observing the EFI device and whether there is an oxygen sensor on the exhaust pipe can also be found.
(7) Detection method of injection system: Compared with the traditional carburetor supply system, the electronic gasoline injection system replaces the carburetor with a fuel injection device.
Multi-parameter control of the system through microelectronics technology can improve the power and torque of the engine under the same fuel consumption. Acceleration time is reduced; Reduce fuel consumption; Reduce tail gas emission, the system adopts closed-loop control and installs three-way catalyst to reduce emission.
There are two types of electronic fuel injection systems; Single-point gasoline injection system SPl and multi-point gasoline injection system MPl. Acupoint injection).
(8) View method of throttle nozzle: Look at the connection part between engine cylinder block and air cleaner, there are no parts in the shape of engine oil, only parts similar to throttle body, that is, EFI. The EFI motorcycle has no carburetor, and the original replacement is composed of throttle body and nozzle.