An inductive discharge ingnition system for internal combustion engines, comprising a permanent magnet rotating syncronously with the engine and passing in front of an ignition coil and a control coil during its movement. The control coil controls a controlled discharge electronic circuit connected in series with the primary winding of the ignition coil, the secondary winding of which is connected to the electrodes of a spark plug. The assembly formed from the ignition coil and the control coil is configured in such a manner as to trigger the spark with an advance compatible with that required by the engine on starting.