A Bolens lawn mower leaking gas usually points to a carburetor sealing or float problem, and the first place to check is the carburetor bowl gasket on the bottom of the carburetor. If that gasket is dried out, damaged, or missing, fuel can drip straight down and look like gas leaking from bottom of lawn mower. Next, inspect the float needle, since a worn needle may not shut off fuel flow and can let the carburetor overflow. A bad carburetor gasket is another common cause of a Bolens lawn mower gas leak, followed by a cracked primer bulb that seeps fuel when pressed. If your mower leaking fuel issue is not coming from those parts, check the fuel shut-off solenoid and fuel lines for leaks, then inspect the carburetor float. A float stuck open can keep filling the bowl until gas spills out, and at that point cleaning the carburetor thoroughly may help, or you may need a carburetor rebuild or replacement. Enter your model number on RepairClinic.com to find the exact Bolens carburetor bowl gasket, float needle, primer bulb, carburetor gasket, fuel shut-off solenoid, or other replacement part that fits your mower.
01 - Bolens Lawn Mower Carburetor Bowl Gasket
If the lawn mower leaks gas the carburetor bowl gasket on the bottom of the carburetor might be dried out or missing. If the leak is coming from the bottom of the carburetor, try replacing the carburetor bowl gasket.
Enter model number to search for the required part specific to your product
The float needle might not be shutting off the fuel. The float needle opens and closes the float valve to allow fuel to enter the float bowl. If the float needle is damaged, the carburetor will continue to fill with fuel until it overflows. If the float needle is defective, replace it.
Check the fuel shut-off valve for leaks, and ensure that the fuel lines fit tightly on the valve. If the fuel shut-off solenoid is leaking, replace it. In addition, inspect the fuel shut off lines for cracks or tiny holes. If a fuel shut-off line is leaking, replace it.
The float might be stuck open. If the float is stuck open, remove the carburetor assembly from the engine and clean it thoroughly. If the cleaning the carburetor is not effective, either rebuild or replace the carburetor.