What would cause 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.
How do you prime a lawn Boy mower?
After you fill the gasoline and top off the oil, if needed, press the primer bulb in firmly and hold it in for a second before releasing it slowly. Press the primer bulb three times to start your lawn mower with a cold engine. If the air temperature is below 55 degrees Fahrenheit, press the bulb in five times.
Where is the fuel filter on a lawn Boy push mower?
The filter screen is on the large side of the housing. The port on the large side goes to the fuel tank while the port on the small side of the housing goes to the carburetor. Fuel filter & fuel line kit. If the fuel filter and fuel line are clogged, they will restrict the flow of fuel to the carburetor.
How do I know if my lawnmower spark plug is bad?
Checking Small Engine Spark Plugs If you haven’t turned on your engine recently, your mower won’t start and/or you have to tug repeatedly on the rewind to start the engine, a damaged spark plug may be the culprit. These problems may also cause excessive fuel consumption, deposits on the cylinder head and oil dilution.
What happens if you prime a lawn mower too much?
Priming it too many times by pushing the primer bulb can also cause flooding. The most common cause of flooding, however, is too many attempts to start the engine by not pulling the starter cord firmly or quickly enough to spark the mower into engagement.
What kind of gas does a Lawn Boy mower take?
Lawn-Boy recommends using gasoline that is 87 octane or close to it. Using higher-octane gas doesn’t add anything useful and some brands contain additives that are harmful to small engines. Gas with up to 10 percent ethanol alcohol is okay.