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.
Additionally, can I use any spark plug for lawn mower?
The spark plugs in both types of engine work on the same basic principle. ... Some automotive and lawn mower spark plugs may be interchangeable, but many others are not because of physical differences.
|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)
|Resistor Spark plug - hotter spark (Replaces Champion RC14YC)
Similarly one may ask, 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.
Are all spark plugs the same for lawn mowers?
Yes there are different plugs for different engines. Usually you need the engine model on your mower, and take in the old spark plug to the hardware store. Ask for someone to help you find the right spark plug and tell them your engine model and mower model.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.Here's How to Know if a Lawn Mower Spark Plug is Bad
- You can't get the engine to fire up at all.
- You have to tug extra hard for longer than usual on the rewind.
- Your lawn mower loses power while moving.
- The gas runs out quicker than it used to.
- Reduced gas mileage.
- Lack of acceleration.
- Hard starts.
- Engine misfires.
- Rough idling.