Why are the exhaust fumes from my Kubota Z726X Lawn Mower colored black?
- JJames ArnoldAug 25, 2025
If the exhaust fumes from your Kubota Lawn Mower are black, dark, or gray, it could be due to several reasons. You might be overloading the mower, so reduce the load. Using a low-grade fuel can also cause this issue, so switch to the specified fuel. A clogged fuel filter could be the culprit, so replace it. Additionally, check if the air cleaner is clogged and clean or replace the air cleaner element. Finally, make sure the choke is fully opened by checking its position.