Where are the timing marks on the Kia Rio 1.6?

On the Kia Rio 1.6, the timing marks are located on the crankshaft pulley and the timing cover. You'll typically find a notch or a painted line on the crankshaft pulley that aligns with a corresponding mark on the timing cover to indicate the correct timing position. Additionally, there are timing marks on the camshaft sprocket that align with the cylinder head. Always refer to the vehicle's service manual for specific details and illustrations.