Patent ID: 7826955

Claim:
A general-purpose internal combustion engine connectable to an operating machine and having a cylinder in which a piston reciprocates to rotate a crankshaft in a crankcase where lubricant oil is retained and a throttle valve for regulating air to be sucked into the cylinder, comprising: an electronic control unit that controls operation of the operating machine when connected; a signal output terminal that is installed in the electronic control unit and outputs a signal generated by the electronic control unit to the operating machine; and a signal selector that selects a signal to be outputted by the signal output terminal from among signals in response to manipulation by an operator; wherein the signals include an oil alert signal outputted when level of the oil is equal to or less than a predetermined level, an engine start signal outputted when an instruction to start the engine is inputted, and an overload signal outputted when opening of the throttle valve is equal to or greater than a predetermined throttle opening limit.