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How to Fix the Primer Bulb for a Weed Eater

Weed eater engines have a primer bulb to aid in the starting of the engine. A dry weed eater engine will not start properly. A primer bulb pumps a small amount of fuel into the carburetor, allowing fuel and air to mix for combustion. Weather and continuous stress to the primer bulb will weaken it, and your primer bulb will eventually crack. Replacing the primer bulb is inexpensive and takes very little time or skill.

Things You'll Need

  • Screwdriver
  • Rag
  • New primer bulb
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Instructions

    • 1

      Drain all fuel from the engine by tilting the unit over and draining fluid into a jerry can.

    • 2

      Remove the torx or Philips head screws from the cover surrounding the primer bulb.

    • 3

      Clean the area around the primer bulb with a rag or compressed air.

    • 4

      Remove the plate surrounding the primer bulb by prying it off with a screwdriver. Remove the bulb.

    • 5

      Insert the new primer bulb into place.

    • 6

      Screw down the mounting plate.