How to Replace a Primer Bulb for a Sears Gas Blower

There are very few yard cleanup tools as versatile as a Sears gas yard blower. For clearing away twigs, bark, leaves and other debris, a Sears gas blower makes short work of the task. The gas engine is powerful, lightweight, and equipped with a self-adjusting carburetor primed with a small rubber bulb that, over time, can crack or harden to make starting difficult. But replacing this primer bulb is a simple repair.

Adjustable pliers
Utility knife

Instructions

- 1
  Shut off the small control valve, called the "petcock," at the tank-end of the fuel line. Turn the small T-shaped handle clockwise to close the valve.
- 2
  Locate the existing primer bulb near the engine-end of the fuel line. Rotate the ring counterclockwise using adjustable pliers to loosen and remove the metal retention ring holding the rubber bulb.
- 3
  Scrape the lip of the primer bulb seat to remove any residual bulb rubber that may have adhered to the engine surface using a utility knife.
- 4
  Feed the new primer bulb into the metal ring. Press the bulb fully into the ring so that the rubber lip fits fully into the threaded side of the ring.
- 5
  Thread the metal ring onto the primer inlet and hand-tighten it to mount the new bulb on the engine. Turn the metal ring about 1/4 turn using pliers to snug the ring.
- 6
  Twist the fuel petcock handle counterclockwise to open it. Push on the new primer bulb several times to siphon some gas into the carburetor, and start the engine as usual.

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