MECHANICS ON WHEELZ  1-855-4YOURMECHANIC    Auto, Truck & Trailer Repair 

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 String Trimmer Maintenance

  • Check the starter, the starter cord and the return spring.
  • Make sure that the vibration damping elements are not damaged.
  • Clean the outside of the spark plug. Remove and check the electrode gap. Adjust the gap to 0.5 mm or change the spark plug.
  • Clean the cooling fins on the flywheel.
  • Clean or replace the muffler's spark arrest screen (not on mufflers with a catalytic converter).
  • Clean the carburetor area
  • Clean the cooling fins on the cylinder and check that the air intake in the starter unit is not blocked.
  • Check that the angel gear is 3/4 filled with grease. Fill if necessary using special grease.
  • Clean the fuel tank.
  • Clean the carburetor and the area surrounding it.
  • Clean the fan and the area around it.
  • Check the fuel filter and the fuel pipe, replace if necessary.
  • Check all cables and connections.
  • Check the clutch, clutch springs and the clutch drum with regard to wear. Replace if necessary.


Following these simple maintenance routines will keep your string trimmer in top shape and prevent damage from happening. Looking over your string trimmer on a daily, weekly and monthly basis will prepare the equipment to be ready anytime you may need it.