Keeping a good running engine depends on good fuel, mechanical and ignition systems. Problems can sometimes occur that point to a bad ignition system. On a Briggs and Stratton engine, check the ignition coil first. Most later models use Briggs and Stratton's magnetron coils—essentially a self-...
Perform a spark test. Disconnect the wire from the spark plug and insert a metal screw- driver into the boot of the spark plug, which is the area that holds the spark plug. Holding the plastic handle of the screwdriver, bring the metal area of the screwdriver close to a metal part of ...