The part(s) or condition(s) listed below for the symptom Lawn mower smoking are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
Lawn Mower Leaking Gas? Lawn Mower Troubleshooting
Lawn Mower Not Self-Propelling? Lawn Mower Troubleshooting
Lawn Mower Runs Rough? Lawn Mower Troubleshooting
Lawn Mower Starts Then Stalls? Lawn Mower Troubleshooting
Lawn Mower Won't Start? Lawn Mower Troubleshooting
Riding Mower Blades Won't Engage? Riding Mower Troubleshooting
Lawn Mower Smoking? Lawn Mower Troubleshooting
Lawn Mower Battery Keeps Dying? Lawn Mower TroubleshootingIf the lawn mower engine produces black smoke, this indicates that the carburetor is getting too much fuel (or "running rich"). If the carburetor float is stuck open, the engine will get too much fuel. Similarly, if the carburetor choke is stuck closed, the lawn mower engine will not be able to draw in enough air to create the proper air-fuel mixture.
If the lawn mower engine produces black smoke, this indicates that the carburetor is getting too much fuel (or "running rich"). If the carburetor float is stuck open, the engine will get too much fuel. Similarly, if the carburetor choke is stuck closed, the lawn mower engine will not be able to draw in enough air to create the proper air-fuel mixture.
If the lawn mower engine produces black smoke, this indicates that the carburetor is getting too much fuel (or "running rich"). If the carburetor float is stuck open, the engine will get too much fuel. Similarly, if the carburetor choke is stuck closed, the lawn mower engine will not be able to draw in enough air to create the proper air-fuel mixture.
