Damaged or Worn Seal: Check the oil seal in the fuel pump for any signs of damage or wear. A damaged or worn seal can allow fuel and oil to mix, leading to oil leakage from the fuel pump.
Clogged Fuel Filter: A clogged fuel filter can restrict fuel from entering the carburetor, causing the fuel pump to draw oil instead of fuel. Make sure the fuel filter is clean and free of obstructions.
Faulty Fuel Pump: If the fuel pump is faulty or damaged, it may not be able to properly pump fuel, causing oil to accumulate and leak from the pump. In this case, you may need to replace the fuel pump.
Other Mechanical Issues: In rare cases, other mechanical issues, such as a faulty carburetor, can also lead to oil leaking from the fuel pump. If you have ruled out the above potential causes, it is recommended to consult with a qualified small engine mechanic for further diagnosis and repair.
