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
- You can't get the engine to fire up at all.
- You have to tug extra hard for longer than usual on the rewind.
- Your lawn mower loses power while moving.
- The gas runs out quicker than it used to.
In respect to this, do all lawn mowers have spark plugs?
Lawn mower gasoline engines and automobile gasoline engines both use spark plugs to ignite the fuel/air mixture in their cylinders. The spark plugs in both types of engine work on the same basic principle.
Likewise, how often should you change the spark plug in a lawn mower?
Will a bad spark plug cause a lawn mower to stall?
Faulty spark plug warning signs
The engine misfires or runs rough. The engine starts, but stalls shortly after. There is a noticeable increase in fuel consumption during normal equipment use.
If your mower is difficult to start, a worn-out spark plug may be the culprit. Replacing a spark plug is one of the easiest tasks of lawnmower maintenance. The only tools you'll need are a ratcheting socket driver, a spark plug socket and a spark plug gauge.For standard lawn mower and small engine maintenance, you should check and/or replace spark plugs: Annually and in accordance with the Operator's Manual. If your lawn mower or outdoor power equipment won't start.