XY pulley wheel

Hi, I would like to inquire about, as my K1 Max has a very annoying artifact at low speeds, and it is also difficult to reduce vibration and resistance along the X-axis. I am considering replacing the wheel with one that has teeth. Is there a tutorial/set of instructions available for replacing it without causing any damage?

even though I have removed the spring from the head, reassembled the belt, and adjusted the belt tension, the result remains the same.