Abstract: An engine for radio controlled models includes an internal combustion engine and a radio control receiver having a control unit for generating a fuel injection signal to control the supply of fuel to the internal combustion engine and a throttle adjusting signal to control an opening of a throttle value. The control unit provides a fuel injection signal based on fuel injection timing which is derived from a stroke signal and control unit provides a fuel injection timing signal to cause the fuel injector of the internal combustion engine to inject fuel into the combustion chamber of the engine.