ACURA CYLINDER HEAD VALVES ADJUST

I Have Never Had The Valves Adjusted, Even Though The Manual Calls For It.

What's The Valve Clearance For 1990 Acura Integration Rs B18a Engine Non Vtech

My Problem Is That My Cars Engine Makes A Loud Clicking Noise (valves Or Tappets) It Doesn't Make This Noise When I Start If From Cold...