Why is fuel leaking out of the exhaust of your mower?

Fuel leaking out of the exhaust of your mower typically indicates a problem with the carburetor, such as a stuck float or a clogged needle valve, which can cause excess fuel to enter the combustion chamber. This can also occur if the mower is overfilled with fuel or if the engine is not running properly, leading to incomplete combustion. Additionally, worn piston rings or a damaged cylinder can allow fuel to escape into the exhaust system. It's important to address this issue promptly to avoid further damage to the engine.