e the oil please.
Briggs & Stratton
There should be a drain plug in the bottom of engine warm lawn mower up take out drain plug drain oil out check your air filter replace it even if it looks clean replace it
How to Identify and Fix Common Gardening Problems ?
We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :
Black spark plugs are a sign of a weak spark or too much fuel in the air-fuel mixture.
If the fuel and air mixture is too rich, it can lead to incomplete combustion. This happens when the carburetor lets too much fuel into the combustion chamber. The resulting smoke will build up on your spark plug over time. If your spark plug keeps turning black, especially quickly, then it may be a carburetor problem.
You may find oil on a spark plug because: Too much oil was mixed with the gasoline. The piston rings (the component that seals piston and cylinder) are failing. If these rings are broken or failing in some way, they can let oil slip past the piston and get on the spark plug.
Black, dry soot on the electrodes and insulator tip indicates a carbon-fouled plug. This can be caused by a dirty air filter, excessive driving at low speeds, too rich of a fuel/air mixture or idling your vehicle for too long.
Causes of a carbon-fouled spark plug include a dirty air filter, excessive driving at low speeds, too rich of a fuel/air mixture, dirty fuel injectors or idling your vehicle for too long.
Causes of Carbon Fouling:
Spark plug heat range too cold. Air-fuel mixture too rich. Reduced compression and oil usage due to worn piston rings/cylinder walls.
Oil will seep through an O-ring that has been worn or cracked, and it will reach the spark plug tube. You`ll need to address this issue promptly before the engine suffers too much damage. You`ll need to change the spark plugs as well because the oil has saturated them.
If the valve does freeze, it can cause higher-than-normal crankcase pressure. This can cause oil to be forced past the valve seals. If the PCV valve is stuck open, the excess vapors and oil droplets can quickly foul the spark plugs. A failed turbocharger can be another source of spark plug oil fouling.
WD-40 Multi-use Product is ideal for cleaning spark plugs. Spray WD-40 Multi-use Product on a microfiber cloth and rub over the spark plug. You can even spray WD-40 directly on the spark plug & then wipe it down using a soft, clean cloth.
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.
Spark plugs are made to be self-cleaning. The heat generated by high engine temperatures allows the spark plugs to burn off anything that may be covering them.
Yes, you can clean an old, fouled plug. However, it`s best to opt for a spark plug replacement in most cases. That`s because an old spark plug won`t perform as well as a new spark plug. After all, electricity discharges best from sharp edges that only a new plug can have.
When a spark plug is black, that`s usually a sign that there`s incomplete combustion in that cylinder. And when it gets bad enough, it`ll turn on your Check Engine light, and might even create a misfire.
If the engine is running to lean, the spark plug can look greyish white. If the engine is running to rich the spark plug will look black, sometimes a glossy black if it`s really rich.
If you haven`t turned on your engine recently, your mower won`t start and/or you have to tug repeatedly on the rewind to start the engine, a damaged spark plug may be the culprit. These problems may also cause excessive fuel consumption, deposits on the cylinder head and oil dilution.