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For the engine to run there are Eight (8) events are required for a 2 or 4 cycle engine to operate.
First, Air is drawn into the cylinder
The correct amount of fuel is metered into the air
The air and fuel are mixed
The air fuel mixture is compressed
The spark plug fires starting combustion
Combustion causes a rapid rise in temperature. The increased temperature causes pressure to increase
which produces a force on the piston.
The connecting rod and crankshaft converts the linear motion to rotary motion.
The burnt gases are expelled from the engine.
Do not confuse these events with the four strokes (events) of a four cycle engine.
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