homepostsWhat is the correct spark plug gap for lawn mowers?

What is the correct spark plug gap for lawn mowers?

Dennis WaldenNov 17, 2021

Setting the Gap on Your Spark Plug

You'll need a spark plug gauge to adjust the gap on your lawn mower's spark plug. Although many small engine spark plugs require a .030 gap, this varies depending on the engine type. You can check this on the engine owners manual.

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Similarly one may ask, what is the spark plug gap for a Cub Cadet lawn mower?


Furthermore, where is the spark plug on Cub Cadet riding mower? PLUG LOCATION: Spark plugs are located on the front or top of the engine and have an approximately 1/4" diameter heavy wire (usually black) connected to the top of each one. There will be one spark plug for each engine cylinder.

In this regard, what is a typical spark plug gap?

The gap setting is different for each vehicle but most are somewhere between 0.028" and .060". Consult the owner's manual or Champion ® catalog to find the recommended setting for the vehicle you're working on.

What happens if you put the wrong spark plug in your lawn mower?

Spark plugs that are gapped incorrectly can cause an engine to miss, or run erratically, especially during idle. The incorrect spark plug gaps can cause uneven firing of individual spark plugs and delay engine combustion; both of which can cause an engine to miss or idle erratically.

How do I know if my lawn mower spark plug is bad?

Here's How to Know if a Lawn Mower Spark Plug is Bad
  1. You can't get the engine to fire up at all.
  2. You have to tug extra hard for longer than usual on the rewind.
  3. Your lawn mower loses power while moving.
  4. The gas runs out quicker than it used to.

How do I gap a spark plug?

How many spark plugs does a zero turn mower have?

Note that single cylinder lawn mower engines have one spark plug, while twin-cylinder riding mower engines have two spark plugs. You will need a deep well socket to remove the spark plug. Once removed, the spark plugs condition can tell you if the engine is operating properly and if the spark plug is working.

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About The Author

Dennis Walden

Dennis owns a small farm and loves to grill since his early childhood. He’s a professional cook, but hiking and enjoying the great outdoors is his no less favorite part of life.