This video describes the working of electronic ignition systems like- CDI and TCI system along with their applications. Also the detailed working with circuit diagrams of Distributorless Ignition Systems (DIS) and their types like Coil-On-Plug (COP) ignition system and Waste Spark Ignition system with their applications has been explained. At last, ignition timing, its importance and types like centrifugal advance and vacuum advance mechanism has been described with the help of schematics.