Briggs & Stratton Lawn Mower Replace Engine Spark Plug #591910

This video provides step-by-step instructions for replacing the spark plug on Briggs & Stratton small engines, commonly found in lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators. The most common reason for replacing the spark plug is if the engine runs poorly or won’t start and the spark plug proves to be at fault.

Click here to purchase Part #591910:

Spark plug part testing video:

Additional small engine repair, troubleshooting tips, help with finding your model number, and part replacement videos:

All of the information in this spark plug replacement video is applicable to the following brands: Briggs & Stratton

Tools used: 13/16” deep-well socket or spark plug wrench

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