How do you set timing on 4.5 Mercury outboard?

To set the timing on a 4.5 Mercury outboard, first ensure the engine is in a secure position and the spark plugs are removed for easier cranking. Use a timing light and connect it to the appropriate spark plug wire, then start the engine and observe the timing marks on the flywheel. Adjust the timing by loosening the mounting bolts on the ignition plate and rotating it until the timing mark aligns with the specified degree on the flywheel. Finally, tighten the bolts and recheck the timing to ensure it is correctly set.