The second most common motorcycle fuel leak has to do with the carburetor, says Motorcycle Habit. It also involves a gasket issue.

Universal Technology Institute explains that a carburetor sends a mixture of air and fuel to the internal combustion engine by way of the intake valve. A carburetor has a bowl that another gasket sits on. The bowl holds the gas.

According to Motorcycle Habit, the bowl may leak if the gasket is old and no longer sealing properly. Again, the gasket would need to be replaced. For this reason, Motorcycle & Powersports News recommends regularly replacing seals and gaskets.