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.
Beside this, are lawn mower spark plugs universal?
Spark plugs aren't universal; you have to make sure that you buy one that fits your mower. ... If you no longer have the manual or the number has rubbed off, you can always remove the plug first and take it to AutoZone with you.
Likewise, people ask, what spark plug do I need for my Briggs and Stratton?
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)
|Resistor Spark plug - hotter spark (Replaces Champion RC14YC)
Will a lawn mower start with a bad spark plug?
A dirty or fouled spark plug can cause your lawn mower to not start. It can also work itself loose, causing issues. If the spark plug appears to be seated correctly but the engine doesn't start, a new one may be in order.
- 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.