Where is the spark plug on a mule 610?

There are two spark plugs located on a mule 610. They are located on the left and right side of the engine about halfway down the side. They are easily identifiable by their black rubber caps. To remove the spark plugs, simply unscrew the caps and then use a spark plug wrench to loosen the spark plugs and pull them out. Be careful not to drop the spark plugs as they can be easily damaged.