Properties:

A reciprocating internal combustion engine, may be with or without container, in which the power necessary to produce motion of the mechanism is obtained by igniting a compressed fuel and air mixture within the cylinder(s) of the machine, by means of introducing an electrical spark into the compression chamber. The engine consists of a cylinder block assembly complete with cylinder head, gasoline engines(s); oil pan(s) and may include attachments or accessories, such as starter, engine, gasoline; radiator, engine coolant; filter (1), fluid; flywheel, engine; housing, flywheel or generator (1), engine accessory. It does not include a tank (1), fuel, engine. For a complete operating power unit mounted on a base, see power unit (1), gasoline. Excludes engine, aircraft, reciprocating.