Why is my Stihl MH 600 producing heavy smoke?
- JJennifer ThompsonSep 12, 2025Heavy smoke formation in your Stihl Tiller could be due to several reasons. The oil level in the engine might be too high, so drain some engine oil. A dirty oil bath air filter might be the cause, so clean or replace it. Also, ensure the machine's angle of inclination isn't over 15°; place it in a horizontal working position. 







