How do I know which spark plug for my lawn mower?
Spark plugs are typically located on the back or side of a lawn mower engine. Look for a short wire that's about 1/4-in. -thick leading to the top of a short, cylindrical protrusion from the engine. If you're not sure where the spark plug is, consult your owner's manual.
Herein, are lawn mower spark plugs a standard size?
Replacing a spark plug is one of the easiest tasks of lawnmower maintenance. ... These specialty sockets have rubber inserts to protect the spark plug's ceramic body, and they're available in a variety of sizes to fit any size spark plug (13/16 and 3/4 in.spark plugs are the most common).
Subsequently, what happens if you use the wrong spark plug in a lawn mower?
Spark plugs that are gapped incorrectly can cause an engine to miss, or run erratically, especially during idle. The incorrect spark plug gaps can cause uneven firing of individual spark plugs and delay engine combustion; both of which can cause an engine to miss or idle erratically.
Is spark plug RC12YX the same as RC12YC?
We can find no cross reference for RC12YX to any NGK number, but RC12YC does cross to NGK BCPR5ES .What is the difference between rc12yc and rc14yc spark plug? The higher number is a slightly hotter spark type plug. The RC14YC4 is now the standard plug for the 990/992 Generac engines. The 999 in the new 16-22kW Evolution (7000 series) units and older 20kW units are still using the cooler RC12YC4 plugs.Spark plug sockets come in two sizes: 5/8 inches and 13/16 inches. Most spark plug sockets have a rubber insert that holds the plug snugly in place. You may also need a universal joint if your spark plugs are difficult to reach.Flathead Engine Spark Plugs & Gaps
|Replacement Part Type||Briggs & Stratton Spark Plug Part Number||Spark Plug Gap|
|Extended Life Series® OHV Spark Plug Platinum (Replaces Champion RC12YC)||696202 5066 (5066D, 5066H)||.030”|
|Resistor Spark plug - hotter spark (Replaces Champion RC14YC)||496018S 5092||.030”|
- Reduced gas mileage.
- Lack of acceleration.
- Hard starts.
- Engine misfires.
- Rough idling.