Lawn Mowers, Carburetors & String Trimmers

Before reaching under a walk-behind lawn mower deck to clear grass or remove the blade, what is the #1 mandatory safety step?

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 Correct IncorrectAlways disconnect the spark plug wire boot (and remove the battery on electric-start models). Turning a blade by hand can rotate the engine over compression and could accidentally fire the cylinder if the plug is connected.

Before reaching under a walk-behind lawn mower deck to clear grass or remove the blade, what is the #1 mandatory safety step?

• Spray WD-40 onto the muffler
• Check the tire air pressure
• Disconnect the spark plug wire boot to eliminate any chance of accidental ignition
• Turn the garden hose on the air filter