How to Replace the Primer Bulb on a Weedeater Lawn Mower

Google+ Pinterest LinkedIn Tumblr +

The primer bulb on a weedeater lawn mower is the mechanism that powers the weedeater engine by supplying it with fuel. It draws fuel from the fuel tank and deposits it into the carburetor so that your weedeater can function. If the primer bulb on your weedeater becomes damaged, it must be replace before you can properly power your weedeater again. Replacing the primer bulb on a weedeater lawn mower is a relatively easy process that only requires a few rudimentary tools.

Things You’ll Need

Replacement primer bulb



Air compressor (optional)

Flathead screwdriver

Step 1

Remove the cover of your weedeater by unscrewing the screws to the cover of the weedeater.

Step 2

Wipe the area surrounding the primer bulb clean with a cloth or use an air compressor if you wish to blow the debris away.

Step 3

Remove the screws that connect the primer bulb mounting assembly to the weedeater lawn mower.

Step 4

Slip the head of a flathead screwdriver between the base of the mounting plate and the weedeater, and press gently upward on the mounting plate to cause it to lift forth from the weedeater so that you can remove it.

Step 5

Push the old primer bulb out of the mounting place, and pop the new primer bulb within the plate.

Step 6

Place the mounting assembly back into place on the weedeater and screw it back into place with the screws previously removed.

Step 7

Replace the cover to the weedeater and screw it into place again.


Ensure that you purchase a replacement primer bulb that is compatible with your weedeater lawn mower; refer to your user manual if necessary for compatible parts and accessories instructions.


Ensure that you securely screw the mounting assembly containing the primer bulb back onto the weedeater lawn mower so that it does not fall off whilst in operation.


About Author

Leave A Reply