And, while you're replacing one of the jets, you accidentally drop the jet. It goes down the carburetor, rolls along the manifold and goes into the head.

9 seconds sound clip from the My Cousin Vinny movie soundboard.

You can hear this line at 00:34:49 in the Blu-ray version of the movie.

Quote context

[...]

- Yes, I'm sure.

- I don't know how you can be so sure when you don't know what it is you're supposed to know.

- It's a procedure. Like rebuilding a carburetor has a procedure.

- You know when you rebuild a carburetor, the first thing you do is you take the carburetor off the manifold?

- Supposing you skipped the first step?

- And, while you're replacing one of the jets, you accidentally drop the jet. It goes down the carburetor, rolls along the manifold and goes into the head.

- You're fucked.

- You just learned the hard way that you gotta remove the carburetor first. Right?

- So that's all that happened to me today. I learned the hard way. Actually, it was a good learning experience for me.

- All right. Is there any way I could help out in this procedure situation?

[...]