Lawn Mower Smoking Causes: Engine Issues And Fuel Problems

When a lawnmower smokes, it’s usually indicative of an underlying issue within the engine. Worn piston rings or leaking valves can cause excessive combustion and release smoke through the exhaust. A damaged carburetor may result in an improper fuel-air mixture, leading to incomplete combustion and smoke. Moreover, a clogged air filter or restricted fuel line can hinder the engine’s ability to function properly, causing it to smoke as well.