Change Primer Bulb On Husqvarna 125b Blower

Are you looking for the easiest and most cost-effective way to keep your Husqvarna 125b blower running smoothly? Then it’s time to get familiar with how to change primer bulbs, Not only does changing the primer bulb help extend the life of your blower, but it also ensures that it operates more efficiently.

We’ll take a deep dive into every step of changing a Husqvarna 125b primer bulb, from gathering the necessary supplies to troubleshooting any issues along the way. So read on if you’re ready to give your blower a little TLC and make sure it stays in top shape.

How Do You Change Primer Bulb On Husqvarna 125b Blower?

The primer bulb on your Husqvarna 125b blower is responsible for supplying fuel to the engine. If this piece is not working correctly, you won’t be able to get your blower running. We’ll take you through replacing the priming bulb step-by-step in this extensive guide.

You’ll need a few essential tools and 15 minutes of your time. 

Tools You Will Need:

  • Screwdriver
  • Wrench (optional)
  • New primer bulb
  • Garden hose (optional)

Step One: Prepare Your Work Area

The first step is to prepare your work area. You will require a flat, level overlay on which to work. If you are working in a room with grass or other vegetation, it is good to put down a tarp or piece of cardboard to protect the area from oil and dirt.

Step Two: Disconnect the Spark Plug Wire

Before you begin any work on your blower, it is essential to disconnect the spark plug wire. It will prevent the engine from accidentally starting while you are working. To do this, pull the wire off of the spark plug.

Step Three: Locate the Primer Bulb

The primer bulb is located adjacent to the engine, close to the carburetor. In most cases, it will be visible. When in doubt, check your device’s owner’s handbook.

Step Four: Remove the Old Primer Bulb

Once you have located the primer bulb, you can remove it by unscrewing the retaining nut with a screwdriver or wrench. Be careful not to lose the washer that is under the nut. Once the retaining nut is removed, pull the old primer bulb out of its socket and discard it.

Step Five: Install the New Primer Bulb

To install the new primer bulb, insert it into the socket and screw on the retaining nut. Be sure to use a fresh washer if necessary. Tighten up the retaining nut until it is snug.

Step Six: Reconnect the Spark Plug Wire

Once you have installed the new primer bulb, reconnect the spark plug wire. Make sure that the wire is securely attached to the spark plug.

Step Seven: Test the New Primer Bulb

Pull on the cord to start the engine to test the new primer bulb. The engine should start rapidly and run effortlessly. If it does not, consult your owner’s manual for troubleshooting tips. 

Congratulations! You have successfully changed the primer bulb on your Husqvarna 125b blower. Be sure to dispose of the old primer bulb and any other waste properly.

Also Read: Oil to Gas Ratio for Your Leaf Blower

How Do You Change a Fuel Bulb on a Blower?

First, you need to identify the fuel bulb. It is usually located near the carburetor or fuel tank. Once you have found it, unscrew the retaining ring that grips it in place.

Next, please remove the old fuel bulb and replace it with a new one. Ensure that the O-ring seal is still intact before screwing the retaining ring.

That’s it! You’ve successfully changed the primer bulb on your Husqvarna 125b blower. Be sure to follow these same steps whenever you need to adjust them in the future.

Also Read: Why Does My Leaf Blower Die When I Give It Gas?

How Do You Change the Fuel Line On Husqvarna Blower?

  • Wipe up any oil that has leaked from the blower first. Because if you don’t, you’ll be annoyed when you get started.
  • Remove the carburetor lid and the air filter. Remove the carburetor to see what’s inside. Open the side parts of the blower using an Allen wrench.
  • After opening the blower’s side section, lift the recoil and the remainder of the component. Unscrew the carburetor using an 8-millimeter socket.
  • After that, disconnect the carburetor’s fuel lines. Carefully detach them.
  • An ordinary screwdriver will suffice for removing the gasoline container’s rubber grommet. You can see the filter when you remove it.
  • Replace those gasoline line pipes that are leaking oil following the specifications. Afterward, reconnect the carburetor’s pipes to the fuel line.
  • Finally, reassemble the blower’s dismantled components before installing the fuel lines.

Why My Primer Bulb Isn’t Won’t Fill Up?

If your primer bulb isn’t filling up, there’s likely an issue with the fuel line. Check to see if the fuel line is kinked or damaged. If it is, substitute it with a new one. If not, then the hindrance maybe with the carburetor.

Try cleaning the carburetor to see if that fixes the issue. Still, having trouble? Bring your blower to a qualified technician for service. 

How Do You Test A Primer Bulb?

The priming bulb on small engines is a little plastic device that sucks petrol from the fuel tank and into the carburetor when squeezed down. Repairing the priming bulb could be necessary if it stops operating. You can test the primary bulb by looking at the following things.

Step 1:

Look for fractures on the carburetor bulb’s face. If the fracture is there, it will prevent the carburetor bulb from sucking gasoline into the carburetor. Replace it by following the manufacturer’s guidelines.

Step 2:

Ensure that the ring surrounding the priming bulb is not fractured. 

Step 3:

Check for fractures or debris in the priming line for the primer pump. Any damage to the primer line necessitates a replacement.

Step 4:

Examine the priming bulb line connection to the carburetor for any damage. Test for leaks and make sure everything is connected and sealed correctly.

Step 5:

If any of these faults are present, follow the instructions in the owner’s handbook to replace the assembly.

Video Guide:


Changing the primer bulb on your Husqvarna 125b blower is easy and only takes a few minutes. Be sure to follow the steps in this blog post carefully so you don’t damage the blower. Once you’ve changed the primer bulb, you should be able to start your Husqvarna 125b blower without any problems.

Victoria Peterson

I am a passionate gardener who wants to help you create and maintain your dream yard. I know that it can be daunting to take on a project like this, but I am here to help. I have been gardening for years and have learned a lot along the way. I want to share my knowledge with you and help you create the perfect yard for your home.

Write A Comment