How four stroke engines work- intake and exhaust strokes explained.?

A four-stroke engine is like a tiny machine inside your car that helps it move by breathing in and out, just like you do.

Imagine you're playing with a toy train. When the train goes forward, it needs to take in air (like you breathe in) and then let it go (like you breathe out). That’s what happens in a four-stroke engine, it breathes in and breathes out, but it does this in special ways.

The first part is like taking a big breath. Inside the engine, there's a little room called a cylinder, and inside that cylinder is a moving piece called a piston. During the intake stroke, the piston moves down, making more space for air (and sometimes fuel) to come in, kind of like when you open your mouth wide to take a deep breath.

Then comes the time to let go. After the engine has used up that air and fuel, it needs to push out the old stuff. That’s the exhaust stroke, the piston moves back up, pushing out the used-up air and gases, like when you blow out a candle.

These two strokes are just part of the whole dance the engine does to keep your car moving, one breath at a time!