Table of Contents
Why is my lawn mower spitting out white smoke?
White smoke indicates that the engine is burning oil. This is usually due to a spill or accidental overfilling of the crankcase. As soon as the trace oil that has reached the engine is burned off, the smoke should clear up and your mower will operate fine.
Why is my lawn mower blowing GREY smoke?
Often times this color of smoke is caused by a blown head gasket, a worn cylinder or worn rings, or an inoperative crankcase breather, all of which will need help from a professional. So remember, just because your mower is smoking doesn’t mean it’s broken – it just may need a little bit of care.
How do I stop my lawnmower from smoking?
Troubleshooting and Fixing the Mower
- Check and replace the air filter.
- Check oil level, grade and type. Change the lawn mower oil if necessary.
- If oil has found its way onto the engine, let the mower run until the oil burns off harmlessly.
- Checking the angle at which you’re mowing.
Why is my mower blowing smoke?
A lawn mower that is putting out white smoke usually indicates an engine that is burning oil. Overfilling the oil or an excess of oxygen within the engine usually causes this. White smoke can also be caused by incorrect oil grades, air leaks, worn cylinder/rings or a blown head gasket.
Why is my mower blowing black smoke?
Black smoke emitted from a lawn mower engine is typically an indication that the gasoline to air ratio is too rich. Black smoke is also an indicator that oil has found its way into the cylinder, and the mower is trying to burn it along with the fuel. In some cases, the mower will not restart.
What would cause a riding lawn mower to smoke?
Your lawn mower’s carburetor regulates the ratio of gasoline to air mixture. If the carburetor isn’t getting enough air, the mixture has a higher percentage of gasoline, which can create black exhaust smoke. It’s possible that a dirty or clogged air filter is preventing sufficient airflow into the carburetor.
Why is my lawnmower burning oil?
Oil Leaks. If an oil leak develops somewhere in the lubricating system or in the engine, while it may not be visible, this will cause your lawnmower to burn through oil more quickly. Common oil leaks occur around the breather cavity, the oil gaskets and the O-ring on the oil tube.
Why is smoke coming out of my lawn mower?
A lawn mower engine will puff out black smoke when the fuel and air mixture is too rich. Because there isn’t enough air, combustion is incomplete, and the unburnt fuel in the combustion chamber turns to smoke. You see the same phenomenon when you burn leaves and pack them too tightly to allow air to circulate.
Why is there black smoke coming from my lawn mower?
Black smoke may indicate that the mower is “running rich,” or burning too much gasoline. Your lawn mower’s carburetor regulates the ratio of gasoline to air mixture. It’s possible that a dirty or clogged air filter is preventing sufficient airflow into the carburetor. Try replacing the air filter.
Why is my mower smoking?