1995 Infiniti G20 Adjusting the clutch.

On my g20 when I shift I have to push in the clutch about an inch for it to shift into next gear, I like it because its easier but it seems to be getting where I have to push it in less and less and I want to adjust it to the normal position. Also I cannot find my clutch resivor, does the clutch share with the master cylinder? I've heard that but haven't had it confirmed. Thanks