Replacing Husqvarna 335 Xpt's Fuel Line: A Step-By-Step Guide

If you're looking to replace the fuel line in your Husqvarna 335 XPT chainsaw, you've come to the right place. This is a task that can be completed with some careful attention to detail and a few basic tools. It's important to note that working with fuel lines can be messy, so be sure to lay down some old newspapers or a drop cloth before you begin. Additionally, it's always a good idea to take photos of the fuel line setup before you start, so you can refer back to them during reassembly. Now, let's get started!

Removing the recoil assembly to access the fuel line

To remove the recoil assembly to access the fuel line of your Husqvarna 335 XPT chainsaw, follow these steps:

First, gather the necessary tools and safety equipment. You will need a set of screwdrivers, wrenches, a clean work area, and safety gear, including gloves and eye protection. Ensure the chainsaw is turned off and unplugged, and place it on a flat surface.

Next, locate the recoil assembly. It is usually found at the top of the chainsaw, where the pull cord is housed. There should be a cover or housing that needs to be removed to access the internal components.

Using your screwdriver, remove any screws or fasteners holding the recoil housing in place. Be sure to keep track of the screws and their locations for easier reassembly. Once the screws are removed, carefully lift or slide off the recoil housing cover.

With the cover removed, you should now see the internal recoil assembly, which includes the pull cord, rewind spring, and other components. Gently pull the pull cord out and disconnect it from the recoil assembly. The rewind spring may be under tension, so be cautious when handling it.

At this point, you should have access to the fuel line. If not, carefully move any obstructing components or cables out of the way, ensuring you don't damage them. Once you have accessed the fuel line, you can proceed with your replacement or maintenance tasks.

Remember to take notes, pictures, or videos during the disassembly process to make reassembly easier. When working with power tools and equipment, always put safety first to avoid injury.

Disconnecting the fuel line from the carburettor

To disconnect the fuel line from the carburettor of your Husqvarna 335 XPT chainsaw, you will need to first locate the carburettor. It is usually found near the engine, and it is where the fuel line connects to the carburettor input connection.

Once you have located the carburettor, follow these steps:

• Make sure the chainsaw is switched off and cooled down before beginning any work.
• Using a pair of needle-nose pliers, gently squeeze the clamp that holds the fuel line in place on the carburettor input connection.
• While squeezing the clamp, carefully pull the fuel line out of the connection. You may need to wiggle it gently back and forth to loosen it.
• Release the clamp slowly and carefully, ensuring that you do not damage the clamp or the fuel line.
• Once the fuel line is free, move it away from the carburettor to avoid any accidental reconnection.
• If your saw is equipped with a primer bulb, you will also need to disconnect the output line from the carburettor. This line will be connected to the suction side of the primer bulb. Again, use needle-nose pliers to gently squeeze the clamp and pull the line out.
• Take note of the routing of the fuel lines and how they are connected for easier reassembly. You can also take digital photographs to help with this process.

It is important to work carefully and slowly when disconnecting fuel lines to avoid any damage to the lines or the carburettor.

Replacing the fuel filter

To replace the fuel filter on your Husqvarna 335 XPT chainsaw, you will need to purchase a replacement fuel filter that is compatible with your specific model. Here is a step-by-step guide on how to replace the fuel filter:

• Start by locating the fuel filter in your chainsaw. It is usually found in the fuel tank or at the end of the fuel line connected to the tank.
• Once you have located the fuel filter, use a pair of pliers or a similar tool to carefully pinch the clamp that holds the fuel filter in place and slide it off the end of the fuel line.
• Remove the old fuel filter by gently pulling it off the fuel line. Be careful not to spill any remaining fuel.
• Take your new fuel filter and slide it onto the end of the fuel line, ensuring that it is securely seated and lined up correctly.
• Reattach the clamp that holds the fuel filter in place by sliding it back onto the fuel line and securing it with pliers. Make sure the clamp is tight enough to hold the fuel filter in place but not so tight that it damages the fuel line.
• Once the new fuel filter is securely attached, fill the fuel tank with fresh fuel and start the chainsaw to check for any leaks. If there are no leaks, your new fuel filter is successfully installed.

It is important to note that you should always refer to the owner's manual of your specific Husqvarna 335 XPT chainsaw model for detailed instructions and safety precautions before attempting any repairs or replacements.

Reassembling the carburettor

To reassemble the carburettor of your Husqvarna 335 XPT chainsaw, you will need to follow these steps carefully:

Firstly, you will need to ensure that you have taken detailed notes and photographs of the carburettor prior to disassembly. This will help you to correctly identify the various components and their original positioning.

Next, carefully clean and inspect all parts of the carburettor, including the choke shaft, choke flap, throttle flap, and any springs, screws, washers, and O-rings. Check for any signs of damage, wear, or deterioration. Replace any parts that appear faulty.

Now, refer to your notes and images to guide you in reassembling the carburettor. Start by positioning the carburettor body and carefully attaching the various components back into place. Ensure that all connections are secure and that there is no damage to any fuel lines or hoses.

Once the carburettor is reassembled, check again for any signs of leaks or damage. If everything appears correct, you can then proceed to reattach the carburettor to the chainsaw, ensuring a secure and proper fit.

Finally, with the carburettor reinstalled, perform a test run of the chainsaw to ensure that it is functioning correctly. Adjust the carburettor settings as needed to achieve optimal performance.

By carefully following these steps, you can successfully reassemble the carburettor of your Husqvarna 335 XPT chainsaw, ensuring a safe and proper functioning tool.

Testing the chainsaw

Once you have finished replacing the fuel line in your Husqvarna 335 XPT chainsaw, it is important to test the machine to ensure it is running properly. Here is a step-by-step guide to testing your chainsaw:

Prepare the Chainsaw for Testing:

• Ensure the chainsaw is switched off and has cooled down to prevent any accidents or burn injuries.
• Disconnect the spark plug to prevent accidental ignition during the testing process.
• Work in a well-ventilated area to avoid inhaling any potential fumes or dust.
• Wear appropriate safety gear, including gloves and eye protection.

Clean and Inspect the Chainsaw:

• Use a degreaser to clean the engine and wipe down the exterior of the chainsaw with a damp cloth.
• Inspect all internal components for any signs of wear or damage.

Test the Ignition Coil:

• Locate the ignition coil by referring to your chainsaw's manual. It is generally situated near the flywheel of the engine, under a protective cover.
• Set your multimeter to the ohms (Ω) setting to measure resistance.
• Place the red (positive) multimeter lead on the terminal of the coil that connects to the spark plug lead.
• Attach the black (negative) multimeter lead to the ground terminal or a metal part of the coil's body.
• Compare the reading to the manufacturer's specifications to confirm the coil's functionality.

Test the Secondary Coil (if applicable):

• The secondary coil amplifies the voltage generated by the primary coil, creating the spark for ignition.
• Locate the secondary coil, usually mounted near the flywheel, with two thin wires leading to the spark plug.
• Set the multimeter to the ohms (Ω) setting and disconnect the secondary coil's lead from the spark plug.
• Place one multimeter probe on the metal part of the coil and the other on the boot where the spark plug connects.

Interpret the Multimeter Readings:

• If the multimeter displays a reading near zero, the coil may have a short circuit. Inspect the coil for visible damage.
• For a high resistance value or "OL", the coil likely has an open circuit, indicating a break in the wiring or internal coil components.
• If the readings fluctuate, ensure all connections are correct and the multimeter probes have good contact.

Reassemble and Test Run:

• If the coil's resistance values are within acceptable ranges, reassemble your chainsaw.
• Start by attaching the bar and chain, then reattach the muffler, starter rope, and chain brake.
• Finally, replace the air filter, fuel tank, and spark plug.
• Add fresh fuel and check the spark plug to ensure it is in good condition.
• Try starting the chainsaw and observe its performance. If it runs smoothly, your repair is a success!

Frequently asked questions