Content
- If the mower smokes black - That's what it can be
- Cause: Sooty spark plug
- Cause: Clogged air filter
- Cause: Dirty carburetor
- Tips
Soiling of the spark plug or carburetor may be the cause if the lawnmower smokes black
If the mower smokes black - That's what it can be
If a lawnmower emits black smoke, the cause may not be apparent at first glance. This guide accompanies you through the root cause analysis with practical tips on common sources of error and effective countermeasures. That's what it can be when a lawnmower smokes black.
Cause: Sooty spark plug
The top 3 sources of black smoke include sooty spark plugs. The more dirt particles accumulate on it, the more it smokes. If you do not intervene now, the lawnmower will not start at all. How to solve the problem from the world:
With brush and rag you now clean spark plug and contacts. Please do not use water or liquid detergents for this purpose. Then replace the clean spark plug and put the plug on it.
Cause: Clogged air filter
Black smoke is a typical symptom of a polluted and clogged air filter. If you identify this component as a culprit, either cleaning will fix the problem or you will need to change the filter. The manual of your lawn mower will tell you how to remove the air filter.
If it is a paper filter, you can knock the dirt out or blow it out with compressed air. Foam filters can be cleaned very well with warm water and dishwashing detergent.
Cause: Dirty carburetor
If you touch a polluted carburetor as the cause of black smoke, you do not necessarily have to remove the component. With the following emergency program, the problem can be handled with a little luck:
With a carburetor cleaner spray all accessible nozzles, throttle bodies and the entire housing. The spray not only dissolves dirt deposits, but also grease, oil and resin. In addition, we recommend an oil change. Put the lawnmower back together and do a trial run. Experience has shown that no black smoke rises anymore.
Tips
If a lawnmower smokes blue, leaked oil is the cause. Examine the oil level carefully. Spilled gasoline also comes as a trigger in question. Just as often, white-blue smoke will increase if you previously tilted the lawnmower in the wrong direction for cleaning.