Toro Mower Smoking at Toro Lawn Mower

Toro Mower Smoking. Because there isn't enough air, combustion is incomplete, and the unburnt fuel in the combustion chamber turns to smoke. An obstruction in the breather tube (located behind the air filter) damages to the cylinder/piston rings.

Now the mower starts great and runs. Usually, the customer turns over the mower to clean the deck or unclog the chute. And here possible reasons why are your lawn mower white smoke and sputtering:

A Lawnmower blowing smoke

This can happen when you service your lawn mower and spill oil into the engine area. Fixing this issue is simple. And here possible reasons why are your lawn mower white smoke and sputtering: If the carburetor float is stuck open, the engine will get too much fuel.