DescriptionThis video provides step-by-step repair instructions for replacing the spark plug on a Briggs and Stratton small engine (which is commonly found in lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators). The most common reasons for replacing the spark plug are when the engine won’t start, is hard to start, stops after a few seconds, or runs poorly.
All of the information for this spark plug replacement video is applicable to the following brands:
Briggs & Stratton, Toro, John Deere, Lawn Boy
Tools needed: socket/spark plug wrench
Step-By-Step Instructions1
Before you begin the replacement, make sure the engine has cooled.
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Before you begin the replacement, make sure the engine has cooled.
3
Now, remove the wire and boot from the spark plug.
4
Now, remove the wire and boot from the spark plug.
5
Use a socket or a spark plug wrench to remove the old spark plug.
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Use a socket or a spark plug wrench to remove the old spark plug.
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Install the new spark plug by screwing it into the cylinder head.
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Install the new spark plug by screwing it into the cylinder head.
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Be careful not to over tighten or damage the plug itself.
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Be careful not to over tighten or damage the plug itself.
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Once secured, attach the spark plug wire and boot.
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Once secured, attach the spark plug wire and boot.