Ignition timing control system for light duty combustion engines

A control system for use with a light duty combustion engine, the system comprising:

• an ignition discharge capacitor coupled to a charge winding for receiving and storing a charge signal;
• an ignition switch coupled to the ignition discharge capacitor for discharging the capacitor, the ignition switch having a signal input;
• an electronic processing device for executing electronic instructions, the electronic processing device having a signal input for receiving an engine speed signal representative of engine speed, and a signal output for providing an ignition signal that causes the ignition switch to discharge the ignition discharge capacitor according to a calculated ignition timing;
• wherein during idling conditions the control system generally manipulates the ignition timing to encourage the engine speed to remain within an idle engine speed range, and during part throttling conditions the control system generally manipulates the ignition timing to encourage the engine speed to leave a part throttle engine speed range.