Spark Plugs for Small Engines
A spark plug delivers electric current from an ignition system to the combustion chamber to ignite the fuel/air mixture. [13]
It has a metal threaded shell electrically isolated from a central electrode by a ceramic insulator. [14]
The central electrode is connected to the ignition coil or magneto output terminal. [15]
The metal shell is screwed into the cylinder head and electrically grounded. [16]
The central electrode protrudes into the combustion chamber, forming spark gaps with the side electrode(s). [17]
The ignition system generates the spark needed to ignite the air/fuel mixture. [6]
When starting, flywheel rotation causes magnets to pass the coil or armature. [7]
Common armature gap ranges are .006 - .010" and .010 - .014". [8]
Ignition timing issues are most often due to a sheared flywheel key. [9]
To service, remove the spark plug using a spark plug socket. [10]
Clean light deposits with a wire brush and spray-on plug cleaner. [11]
Never clean a spark plug with a shot blaster or abrasives. [12]
When the mower deck is clogged, turn off the mower and disconnect the spark plug before washing. [4]
After spraying, remove remaining clumps with a stick or tool, never hands or feet. [5]
Sources
- briggsandstratton.com:
Check the oil level regularly - ideally every time you mow.
- briggsandstratton.com:
If you have a new mower, change the oil after the first five hours of use.
- briggsandstratton.com:
After that, change the oil after every 50 hours of use or at the beginning of each lawn care season.
- briggsandstratton.com:
Briggs & Stratton Fuel Stabilizer Plus gasoline additive can keep your fuel fresh year-round and help prevent gum deposi
- briggsandstratton.com:
When the mower deck is clogged with clippings, turn off the mower, disconnect the spark plug and then use a garden hose
- briggsandstratton.com:
After spraying, remove any remaining clumps of grass that may interfere with the blade by using a stick or other tool -
- briggsandstratton.com:
The ignition system generates the spark needed to ignite the air/fuel mixture for your small engine.
- briggsandstratton.com:
When you start your lawn mower or small engine, the rotation of the flywheel causes its magnets to pass the coil (or arm
- briggsandstratton.com:
Common armature gap ranges are .006 - .010" and .010 - .014".
- briggsandstratton.com:
If you are experiencing ignition timing issues, this is most often due to a sheared flywheel key.
- briggsandstratton.com:
Remove the spark plug using a spark plug socket.
- briggsandstratton.com:
Clean light deposits from the plug with a wire brush and spray-on plug cleaner.
- briggsandstratton.com:
Never clean a spark plug with a shot blaster or abrasives.
- wikipedia.org:
A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ig
- wikipedia.org:
A spark plug has a metal threaded shell, electrically isolated from a central electrode by a ceramic insulator.
- wikipedia.org:
The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of
- wikipedia.org:
The spark plug's metal shell is screwed into the engine's cylinder head and thus electrically grounded.
- wikipedia.org:
The central electrode protrudes through the porcelain insulator into the combustion chamber, forming one or more spark g