Replacing Fuel Lines In Your Troybilt Tb46200 Chainsaw

Changing the fuel lines on a chainsaw is a simple solution to keep your machine running smoothly and prevent any interruptions during usage. This is a guide on how to change the fuel lines on a Troybuilt chainsaw, which is a standard procedure for Craftsman, MTD, Poulan, Husqvarna, and McCulloch chainsaws. It is important to note that if you have a unique model, you should refer to the instruction manual that comes with your chainsaw.

How to change out fuel lines tb46200 troybuilt chainsaw

Prepare your workspace

Before you begin, ensure you have all the necessary tools and safety equipment. For this task, you will need:

• A manufacturer-recommended fuel line
• Needle-nose pliers
• A screwdriver set
• Safety gloves
• Safety glasses
• Scissors or wire cutters
• A well-lit and ventilated workspace

It is also recommended that you wear a jacket and chaps in addition to your safety gloves and glasses.

Now, find a flat surface at waist height to place your chainsaw on, such as a table. This will help you maintain a straight back while working and avoid any unnecessary bending. Make sure your workspace is clear of any clutter and well-ventilated.

The next step is to remove the fuel from your chainsaw. Grab an old container and empty the contents of the fuel tank into it. Keep this container close by, as you can use the old fuel to remove any accumulated dust or debris from the components you will be handling.

Remove the cylinder cover and air filter

To remove the cylinder cover and air filter from your Troybuilt TB46200 chainsaw, follow these steps:

First, ensure your chainsaw is switched off and cooled down. Place it on a flat surface, such as a table, to make the process easier. Put on work gloves and gather the necessary tools, including a appropriately-sized screwdriver and a container for any old fuel.

Next, remove the nuts on the cylinder shield. Most Craftsman chainsaw models have three or four nuts on the shield. Once these are off, you can lift the cylinder cover.

Now, take out the air filter. Check if it can be cleaned and placed back in the chainsaw, or if it needs to be replaced. If it's dirty, you'll need to replace it.

At this point, you should also disconnect the spark plug.

These steps will allow you to access the cylinder and other components for maintenance or repairs. Remember to refer to your operator's manual for detailed instructions specific to your chainsaw model.

Take out the fuel filter

To take out the fuel filter from your chainsaw, you will need to first empty the fuel tank. This is important for safety reasons. Once the tank is empty, locate the fuel filter. You can use a steel coat hanger to take out the fuel filter from the chainsaw's fuel tank. Straighten out one end of the coat hanger and then slide it inside the fuel tank to bring out the fuel filter. You can also use a piece of bent wire, bent like a "J" hook, to fish the filter out.

Once you have located the fuel filter, detach the fuel line from it. You may need to use a flathead screwdriver to disconnect the fuel line. With the fuel line detached, you can now remove the fuel filter from the chainsaw. Be sure to dispose of the old fuel filter properly.

It is recommended to replace fuel filters annually, or whenever the fuel tank is contaminated with dirt, sawdust, water, or bar oil. Contaminants in the fuel tank can cause issues with the chainsaw's performance and may even render it unusable. Additionally, always wear safety equipment, such as gloves, when working on your chainsaw, and avoid smoking while performing this task.

Install the new fuel line

Now that you have successfully removed the old fuel lines, it is time to install the new ones. Here is a step-by-step guide to help you with the installation process:

Feed the new fuel lines into the fuel tank: Use the holes where the old lines were removed to feed the new fuel lines into the fuel tank. Needle-nose pliers can assist you in guiding the lines through.

Attach the fuel filter: Make sure to attach a fuel filter to the end of the fuel line inside the tank. This will prevent debris from entering the carburetor and ensure a smooth fuel flow.

Connect to the carburetor: After inserting the lines into the tank, connect the other ends to the carburetor. Ensure a secure fit to prevent any leaks that could affect the performance of your chainsaw.

Trim excess length: Leave just enough fuel line to comfortably connect to the tank and carburetor without kinking or bending. Trim any excess length with scissors or wire cutters.

Secure the lines: Double-check that the new fuel lines are securely attached to both the tank and the carburetor. A snug fit is essential to prevent fuel leaks during operation.

Testing your chainsaw:

After installing the new fuel lines, it is crucial to test your chainsaw to ensure the replacement was successful. Here are the steps to properly test your chainsaw:

Inspect the fuel lines: Begin by visually inspecting the new fuel lines for any signs of damage or improper installation.

Fill the tank: Add fuel to the tank and carefully monitor the connections for any signs of leaks.

Prime the engine: Refer to your chainsaw's manual to prime the engine and ensure proper fuel flow.

Start the chainsaw: Attempt to start the chainsaw to verify that the fuel is reaching the engine through the new fuel lines.

Observe performance: Pay attention to how the chainsaw operates. Look for smooth idling, consistent power, and proper acceleration.

If you encounter any issues during testing, revisit the installation steps to confirm the correct placement and connections of the fuel lines.

Test your chainsaw

Once you have finished changing the fuel lines on your chainsaw, it is important to test it to ensure that everything is running smoothly. Here is a step-by-step guide on how to test your chainsaw's ignition:

• Remove the top cover on the saw to expose the spark plug: You will need to remove the top cover of the saw to access the spark plug. This will usually involve unscrewing a few bolts and carefully lifting the cover off.
• Remove the spark plug: Once the top cover is removed, you can locate and remove the spark plug. It is important to be gentle and careful during this step as you do not want to damage the spark plug or any surrounding components.
• Place the sparkplug wire onto the spark plug but do not install it into the cylinder: For this step, you will need to hold the boot on the end of the sparkplug wire with your hand and place the electrode tip of the sparkplug onto a metal surface on the saw, such as the cylinder. The spark plug should remain in the spark plug boot.
• Hold the metal threaded part of the spark plug in one hand and pull the starter cord quickly: If your ignition is working, you should see blue sparks where the plug is being grounded on a metal surface. Make sure that your ignition switch is in the "on" position.
• Reinstall the spark plug and close the chainsaw: Once you have tested the ignition and observed the blue sparks, you can now reinstall the spark plug and close the chainsaw. Make sure that all components are securely fastened and that there are no loose wires or connections.
• Test your chainsaw: Finally, add fresh fuel to your chainsaw and start it up. Your chainsaw may require a few pulls on the starter cord or you may need to turn on the choke to get it started. Once it is running, let it run for a few minutes to ensure that it is operating smoothly and that there are no leaks or other issues.

Frequently asked questions