Location. In the Troy-Bilt Pony lawn tractor, the spark plug is located on the front of the engine, so open the engine hood and look. A thick black wire is connected to the top of the plug by means of a rubber or metal “boot” that clips over the top of the spark plug.
Where is the spark plug on 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.
How do you remove a spark plug from a lawn mower without a spark plug socket?
- Gather some basic tools. …
- Pull the spark plug out using a wrench. …
- Pull the spark plug out using a nose plier or other tool. …
- Pull them out using a magnet and a wrench. …
- Pull it out by a rubber hose/ pipe. …
- Use lubricants if the spark plug refuses to turn.
What are the symptoms of a bad spark plug on a lawn mower?
- The engine requires repeated attempts to start or the engine won’t start at all.
- The engine misfires or runs rough.
- The engine starts, but stalls shortly after.
- There is a noticeable increase in fuel consumption during normal equipment use.
What is the spark plug gap on a Troy Bilt lawn mower?
Most of our handheld engine spark plugs should be gapped at either: A) For 28-32 cc engines, set the gap at 0.020″ (0.5 mm). B) For 38-55 cc engines, set the gap at 0.025″ (0.635 mm).
How can you tell when a spark plug is bad?
- Your car is a rough starter. …
- Your car is a rough idler. …
- Your engine will sometimes misfire. …
- Your engine surges. …
- Your fuel consumption is higher than usual. …
- Your car isn’t accelerating as it should.
What does a spark plug tool look like?
The most important tool is a socket wrench with an extension and a spark plug socket. 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.
Can you clean a spark plug?
To safely clean a spark plug, you should use a wire brush or spray-on plug cleaner specifically designed for this ignition part. You can also use a sturdy knife to scrape off tough deposits. Note: NEVER clean a spark plug with a shot blaster or abrasives.
Why is my lawn mower turning over but not starting?
The most common reason for a riding mower cranking over but not starting is bad gas, but other possible reasons include: Gas Valve Off. No Gas. Choke Fault.
How do you get a spark plug out?
Gently grasp a spark plug wire by the boot (the place where it connects to the spark plug), twist it, and pull it straight out. Never yank on the wire itself (you can damage the wiring). The shiny thing sticking out of the engine block after you remove the wire from the spark plug is the terminal of the spark plug.
Article first time published on
Do lawn mower spark plugs need to be gapped?
Summary. Lawnmower spark plugs can come pre-gapped, but this depends on the manufacturer. However, in most cases, the gap can be too small or too big, which can lead to ignition problems. … Spark plugs need to be pre-gapped to ensure proper ignition of the air and fuel mixture.
What does it mean when lawn mower backfires?
When backfires occur as your lawnmower idles or as you’re turning off the engine, the most likely problem is that you‘re slowing your engine speed too fast. … The problem also could be that your mower is overheating; if you suspect this, contact the manufacturer about ways to increase air flow to the engine.
What is the spark plug gap for a Briggs and Stratton engine?
Replacement Part TypeBriggs & Stratton Spark Plug Part NumberSpark Plug GapElectromagnetic Suppression (EMS) (Replaces Champion QC12YC)691043 792015.030”Extended Life Series® OHV Spark Plug Platinum (Replaces Champion RC12YC)696202 5066 (5066D, 5066H).030”
What all do you need to change spark plugs?
- Ratcheting socket wrench.
- Socket wrench extension.
- Spark plug socket.
- Flexible socket wrench joint adapter, if necessary.
- Spark plug gap tool.
- Torque wrench.
- Vacuum and/or compressed air blower.
- Clean rag or paper towels.
Are all spark plugs the same size?
While you should buy spark plugs in matching sets for your vehicle, not all spark plugs are universal. Spark plugs come in different sizes with different gaps and are manufactured using a variety of metals. Finding the ones that you need can be difficult.
What would cause a spark plug not to fire?
A spark plug won’t fire properly if its electrodes have been worn thin, if they are covered with combustion deposits or if they’re wet. If the plug has seen many hours of service, the electrodes may just be worn out, and replacing the plug will restore normal engine operation.
Are all lawn mower spark plugs the same?
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.
Why does my Troy Bilt not start?
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time. … This sticky fuel can clog up the carburetor and prevent the engine from starting. If the carburetor is clogged, try cleaning it with carburetor cleaner.
Why does my lawn mower only run for a few seconds then dies?
If your lawn mower starts, runs briefly, then dies these are the four most common reasons that’s happening: Dirty carburetor / clogged carburetor bowl. Old gasoline that has gone bad. Dirty or defective spark plugs.
Can you clean spark plugs without removing them?
When planning on cleaning spark plugs, you need to remove them; first, there’s nothing like how to clean spark plugs without removing them. You need to access the plugs by removing them before choosing the method you want to use.
What is the spark plug boot?
The “boot” is what connects the ignition coil to the spark plug. It is similar to a spark plug wire but isn’t visible. … The spark from the coil changes direction; instead of traveling through the boot, from the coil to the spark plug, it will shoot out the side of the bad boot and spark to the cylinder head.
What are spark plug pliers used for?
Used to Remove Stubborn Spark Plug Wires on GM 3.1L, 3.4L, 3.8L and Other Engines. The 5/8″ opening of the pliers properly fits spark plug wire boots to prevent damage to spark plug wires.
