if u have a hydraulic clutch u dont adjust it. the older civics i think have cable clutches that u adjust the cable. if yours is hydraulic u can check the pedal itself at the firewall see if its lined up. change the fluid out or bleed the lines if u have a problem. the pedal will adjust itself after a few tries. see that u dont have a leak in the master and slave cylinders. there r pistons in both that move the fluid thru and activate the clutch. the pistons and seals can go bad.