How to Install Diaphrams in 2-cycle Weed Eater Carburetor

In two-cycle Weed Eaters, a carburetor controls the flow of gas and air to the combustion chamber. Diaphragms in a Weed Eater carburetor help maintain the pressure and regulate the flow of gas into the carburetor. When they age, the diaphragms will dry out and crack, and the fuel cycle will be interrupted. At that point, you will need to remove and replace them for the Weed Eater to work properly again.

Screwdriver
Replacement diaphragms

Instructions

- 1
  Unscrew the bottom plate’s retaining screws. Take the plate off the carburetor. Pull away the rubber gasket and diaphragm from the bottom of the carburetor. Separate the gasket and the diaphragm if they stick together.
- 2
  Press down the spring on the side of the needle valve on the bottom of the carburetor. Loosen and remove the spring retaining the needle valve. Take your thumb away slowly and remove the needle valve, lever and spring.
- 3
  Unscrew the top plate’s retaining screws. Take the top plate off the carburetor. Pull the gasket away from the reed valve.
- 4
  Reassemble the carburetor using the replacement diaphragms. Put the new reed valve, with diaphragm, onto the top of the carburetor. Set the gasket and cover on top and tighten down the screw.
- 5
  Set the spring into the hole on the bottom of the carburetor. Set the lever onto the needle valve and tighten down their retaining screw. Fit the new diaphragm and gasket to the underside of the carburetor. Fit the bottom plate and tighten down the screw.

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