Snake yawns frequently, is it bad?

[CakeLike]

How often is he yawning? Once or twice every time you take him out, or multiple times within 10-20 mins?

In my experience nervousness may also cause a BP to yawn. As mentioned above, it may be a way for them to take in more smells in the air by letting air hit their Jacobson's organ directly.

I don't monitor him constantly but I have a pet cam on him and he does it mostly at night when he is active. And I see it on the footage that he does it almost daily but not a couple if times in a row.
He yawns, than he goes on exploring.