1. Locate the spark plugs. The spark plugs are located on the top of the cylinder head. There are four spark plugs in total: two on the front and two on the rear of the engine.
2. Remove the spark plug caps. The spark plug caps are held in place by a simple twist-lock mechanism. To remove them, simply grasp the cap and turn it counterclockwise until it comes off.
3. Remove the old spark plugs. Use a spark plug wrench to loosen and remove the old spark plugs.
4. Inspect the old spark plugs. Check the condition of the spark plugs to see if they need to be replaced. If the spark plugs are worn or damaged, they will need to be replaced.
5. Install the new spark plugs. Carefully screw in the new spark plugs until they are hand-tight. Then, use a spark plug wrench to tighten them until they are snug.
6. Replace the spark plug caps. Replace the spark plug caps by pushing them back into place and turning them clockwise until they lock in place.
Once the spark plugs have been changed, you can start the motorcycle and test it to make sure that it is running properly.
