What are the reasons for a motorcycle ignition coil having electricity but failing to start?

[DeArthur]

Reasons for a motorcycle ignition coil having electricity but failing to start: damaged injection unit, or no fuel injection or 5A fuse blown; poor contact of the angle mark signal sensor; weak magnetic field of the machine; battery failure; issues with the ignition system wiring; poor fuel flow; low-quality gasoline; engine failure. Exclusion methods are as follows: Replace the fuse: When turning on the car key, if there is no self-test sound from the injector, visually check if the fuse is blown and replace it if necessary. Replace the injector: If there is a self-test sound, remove the injector (keeping the connector connected), press the start button to observe the fuel injection status, and replace the injector if necessary. Check the connection of the angle mark line and repair it. Check the magneto: Check the strength of the magneto signal, etc.