How do you adjust the ignition timing on a 96 Kia Sephia 1.8?

To adjust the ignition timing on a 1996 Kia Sephia 1.8, first, ensure the engine is at operating temperature and then disconnect the timing advance connector, usually located near the distributor. Use a timing light to check the current timing by pointing it at the timing mark on the crankshaft pulley while the engine is running. If adjustment is needed, loosen the distributor hold-down bolt and rotate the distributor slightly to advance or retard the timing, then recheck the timing. Once adjusted, reconnect the timing advance connector and ensure all tools are removed before starting the engine.