Where is the spark plug on a riding 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. Remove the spark plug using a spark plug socket.
Accordingly, does a riding lawnmower have a spark plug?
Replace your riding lawnmower's spark plug after every 100 hours of use and before storing the mower for the winter months. A damaged spark plug can decrease fuel efficiency, cause the engine to run poorly, leave deposits on the cylinder head and/or cause ignition problems.
In this manner, what are the symptoms of a bad spark plug on a lawn mower?
Faulty spark plug warning signs
- The engine requires repeated attempts to start or the engine won't start at all.
- 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.
What is the recommended spark plug gap?
For most racing applications, you usually want the plug gap to be between 0.020 and 0.040 of an inch. Most engine builders seem to settle around 0.035 of an inch. Factors such as the type of ignition you run, cylinder heads, fuel and even timing can affect how much gap will work best for you.
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