How do you change the spark plug on a Craftsman lawn mower?
Regarding this, where is the spark plug located on a lawn mower?
Locate the spark plug(s).
On a walk-behind or riding lawn mower, they're usually near the front of the engine. On zero-turns, look near the back of the engine on the sides. Disconnect the spark plug lead and clean around the spark plug to remove any debris.
Then, how do you check a spark plug on a Craftsman lawn mower?
How do I know if my lawnmower 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.
The Craftsman 4.5hp mower uses either a Champion model RJ19LM or J19LM spark plug, or equivalent, with the gap set at .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.