4-stroke engine cycle

The intake valve opens, allowing the ____ to enter the cylinder.

The compression stroke ______ the air/fuel mixture, making it more combustible.

The spark plug produces a spark to ______ the compressed air/fuel mixture.

The exhaust stroke occurs when the piston moves ______ the cylinder.

The 4-stroke engine cycle is also known as the ______.

The ______ stroke pushes the remaining exhaust gases out of the cylinder.

The _______ stroke ignites the fuel-air mixture.

The ______ stroke pushes the piston downward.

During the intake stroke, the _____ opens.

The ______ stroke creates a vacuum in the cylinder.