Q: Do diesel engines have spark plugs? A: No, diesel engines do not have spark plugs. What are spark plugs? What do spark plugs do? Spark plugs are located at the top of the cylinder head in ...

Spark plugs for gas-powered lawn mowers aren't universal. They vary in size, gap, and heat range. The type you need depends on your mower's engine model.

Replacing the spark plug Now coming to the current situation, my car was due for spark plug replacement as it had already done 15k km and this is the time interval I have kept changing my plugs ...

Just like cars, lawn mower engines need their spark plugs changed on a regular basis. How often should you swap the old ones out for new ones?