homepostsWhat size is a lawn mower Spark Plug?

What size is a lawn mower Spark Plug?

Dennis WaldenSep 13, 2021

Ideally, most automobile spark plugs use a thread size of about 14mm thread why those of lawn mower range between 10 to 12 mm. Because of these differences in thread sizes, they just won't fit into the same hole or the unit in which the plug is to be fit in.

>> Click to read more <<

Also to know is, where is Spark Plug on John Deere lawn mower?

Then, what Spark Plug does a John Deere D100 take? Compatible Spark Plug for John Deere Lawn Mower & Garden Tractor D100, D110, D120 - Compatible Champion RC12YC & NGK BCPR5ES Spark Plugs.

Consequently, what kind of Spark Plug does a John Deere D140 take?

Compatible Spark Plug for John Deere Lawn Mower & Garden Tractor D130, D140 - Compatible Champion RN12YC & NGK BPR5ES Spark Plugs.

Are all spark plugs the same for lawn mowers?

Yes there are different plugs for different engines. Usually you need the engine model on your mower, and take in the old spark plug to the hardware store. Ask for someone to help you find the right spark plug and tell them your engine model and mower model.

Will a lawn mower start with a bad spark plug?

A dirty or fouled spark plug can cause your lawn mower to not start. It can also work itself loose, causing issues. If the spark plug appears to be seated correctly but the engine doesn't start, a new one may be in order.

How often do I need to change the spark plug in my lawn mower?

Replace spark plugs as often as is recommended by the manufacturer.
  1. Change spark plugs at the beginning of every mowing season (in the spring) and/or every 100 hours of use.
  2. Use the same spark plugs recommended by the manufacturer of your lawn tractor or push mower.

How can you tell when a spark plug is bad?

Symptoms of bad spark plugs can include:
  1. Reduced gas mileage.
  2. Lack of acceleration.
  3. Hard starts.
  4. Engine misfires.
  5. Rough idling.

What size socket do I need for a spark plug?

Most spark plugs require a 5/8" (16mm) size spark plug socket. This refers to the size of the flats on the spark plug that are in contact with the socket.
Share to: FacebookTwitterPinterestEmail

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.

Related Content