Check the information on the old plug to determine the proper replacement. Gas-powered lawn mowers work with a spark plug that ignites the engine. Depending on your brand and model, the spark plug may be located along the back of the engine or on the front, but is easy to identify by the wire clipped onto its tip.
Are lawnmower spark plugs universal?
Spark plugs aren’t universal, you have to make sure that you buy one that fits your mower. … If you no longer have the manual or the number has rubbed off, you can always remove the plug first and take it to AutoZone with you.
What happens if you use the wrong spark plug in a 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.
Will any spark plug work in a lawn mower?
The spark plugs in both types of engine work on the same basic principle. … Some automotive and lawn mower spark plugs may be interchangeable, but many others are not because of physical differences.
Can you use any spark plug for a lawnmower?
Most automobile engines use spark plugs with a thread size of about 14mm, whereas most lawn mower engines use spark plugs with a thread size of about 10 to 12mm. Because the size specifications are different, the two spark plug types can’t be interchanged. They won’t fit in the same unit.
Do all push mowers take the same spark plug?
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.
When should I change my lawn mower spark plug?
- once a season.
- every 25 hours of use.
- if your lawn mower our outdoor power equipment won’t start.
What causes a lawn mower not to start?
Your Mower Won’t Start:
Other possible causes include: Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas.