Replacing Fuel Line And Filter In Stihl Ms180: A Step-By-Step Guide

how to change fuel line and filter on stihl ms180

The Stihl MS180 chainsaw is a powerful tool for tree trimming and cutting. However, like any machine, it requires maintenance to keep it running smoothly. One important task is replacing the fuel line and filter, which can save you money and ensure your chainsaw starts and runs as it should. This guide will outline the steps to safely and effectively change the fuel line and filter on your Stihl MS180, including preparing the machine and workspace, removing the old parts, and installing the new ones.

How to change the fuel line and filter on a Stihl MS180 chainsaw

Characteristics Values
PPE Eye and ear protection, fingerless gloves
Tools T27 Torx screwdriver or bit, hooked wire or <co: 1,2>long-nose pliers, metal hook
Steps 1. Empty the fuel tank. 2. Remove the top cover by turning the knob anti-clockwise with a screwdriver. 3. Push the choke lever down and remove the cover. 4. Turn the chainsaw on its side so the fuel and oil tank caps are facing up. 5. Undo the petrol and oil tank caps and manoeuvre the cap retainers into a position so they can be removed. 6. Unscrew the four T27 Torx head bolts and put them to one side. 7. Remove the fuel filter using a metal hook or long-nose pliers. 8. Pull the fuel pipe off the filter and remove both parts. 9. Rinse the fuel tank. 10. Push the new fuel line through the hole and use a tool to push the fuel pipe retaining part into the hole. 11. Pull the end of the new fuel line out of the tank and push the new filter onto it. 12. Put the chainsaw back together. 13. Adjust the carb and use lube when pushing the grommet into place.

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Prepare PPE and workspace

To prepare your PPE and workspace for changing the fuel line and filter on your Stihl MS180 chainsaw, follow these steps:

Firstly, ensure you have the correct PPE for chainsaw operations. This includes eye and ear protection, as well as gloves. It is important that you feel comfortable and protected during the task. You may also want to wear protective clothing, such as a long-sleeved shirt and pants, to avoid any potential fuel spills or debris.

Next, prepare your workspace. Find a well-ventilated area, preferably outdoors or in a garage, to ensure proper air circulation during the task. Place a tarp or newspaper on the ground to catch any spilled fuel and to protect the surface you are working on. Gather all the necessary tools and parts, including a T27 Torx screwdriver or bit, hooked wire or long-nosed pliers, cloths for cleaning, and the new fuel line and filter.

Before beginning any work on the chainsaw, it is important to empty the fuel tank if it is full. Even if there is only a small amount of fuel in the tank, it is safer to work with an empty tank. Leave the oil tank as it does not need to be emptied.

Now you are ready to start the process of changing the fuel line and filter on your Stihl MS180 chainsaw. Remember to take your time, work carefully, and always put your safety first.

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Remove fuel and top cover

To remove the fuel and top cover from your Stihl MS180 chainsaw, start by emptying the fuel tank if it is full. If there is only a small amount of fuel in the tank, you can leave it as it is.

Next, remove the top cover by turning the knob in an anti-clockwise direction with a screwdriver. Push the choke lever down as far as it will go so that the cover can be removed. Put the cover to one side for now.

Now, turn the chainsaw onto its side so that the fuel and oil tank caps are facing upwards. Undo both the petrol and oil tank caps. Then, using a piece of hooked wire or a pair of long-nosed pliers, manoeuvre the cap retainers into a position where they can be removed. Again, put these to one side for now.

At this point, you should be able to see four T27 Torx head bolts: three in the body and one securing the brake handle. Using a T27 Torx screwdriver or bit, unscrew these and put them to one side as well.

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Remove tank caps

To remove the tank caps of your Stihl MS180 chainsaw, start by emptying the fuel tank if it is full. If there is only a small amount of fuel in the tank, you can leave it. The oil tank does not need to be emptied.

Next, remove the top cover by turning the knob in an anti-clockwise direction with a screwdriver. Push the choke lever down so that the cover can be removed, and set it aside. Turn the chainsaw on its side so that the fuel and oil tank caps are facing upwards.

Now, undo both the petrol and oil tank caps. Using a piece of hooked wire or a pair of long-nosed pliers, manoeuvre the cap retainers into a position where they can be removed. Set the caps aside for now.

At this point, you will be able to access the fuel filter. Using a metal hook or long-nosed pliers, pull the filter out of the tank. You can now move on to removing the fuel pipe from the filter.

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Remove old filter and fuel line

To remove the old filter and fuel line from your Stihl MS180 chainsaw, you will need to first empty the fuel tank if it is full. If there is only a small amount of fuel in the tank, you can leave it, but be careful not to spill it. Next, remove the top cover by turning the knob anti-clockwise with a screwdriver and pushing the choke lever down so the cover can be removed. Set the cover aside.

Turn the chainsaw on its side so that the fuel and oil tank caps are facing upwards. Undo both the petrol and oil tank caps. Using a piece of hooked wire or long-nosed pliers, manoeuvre the cap retainers into a position where they can be removed, and set them aside.

Now, you will need to remove the four T27 Torx head bolts that secure the starter handle cover and the brake handle. Use a T27 Torx bit or screwdriver to unscrew these and put them to one side. With the starter handle cover removed, you can access the fuel filter. Using a metal hook or long-nosed pliers, pull the filter out of the tank. Hold the filter and pull the fuel pipe off, then discard the old filter.

Finally, apply pressure and pull up on the fuel pipe to remove it from the tank, twisting it as you do so. Discard the old fuel pipe.

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Install new filter and fuel line

Now that you have removed the old fuel filter and fuel line, you can install the new ones.

Firstly, take your new fuel line and push the end that needs to be attached to the filter through the hole. Then, using a tool that is not too sharp, push the fuel pipe retaining part into the hole. Ensure that the tab is facing the vent on the tank.

At this point, you can pull the end out of the tank with long-nose pliers. Now, push the new filter onto the end of the fuel line. Then, push the new filter back into the tank.

As mentioned previously, you may need to adjust the carb after replacing the fuel line and filter. Use lube when you push the grommet into place.

Finally, put the chainsaw back together.

Frequently asked questions

If your chainsaw is struggling to start, doesn't rev when it does start, and doesn't tick over, it may be time to change the fuel line and filter.

You will need eye and ear protection, gloves, a T27 Torx screwdriver or bit, hooked wire or long-nose pliers, and cloths to clean as you go.

First, empty the fuel tank if it is full. Then, remove the top cover by turning the knob anti-clockwise with a screwdriver and pushing the choke lever down. Next, turn the chainsaw on its side so the fuel and oil tank caps are facing up, and undo both caps. Using hooked wire or long-nose pliers, manoeuvre the cap retainers into a position where they can be removed. You will then see four T27 Torx head bolts: three in the body and one securing the brake handle. Unscrew and remove these. Now, remove the fuel filter using long-nose pliers and pull the fuel pipe off the filter. Discard the old filter and pipe, and rinse the fuel tank with fresh fuel. Taking the new fuel line, push the end that connects to the filter through the hole, and use something not too sharp to push the fuel pipe retaining part into the hole, ensuring the tab is facing the vent on the tank. Pull the end out of the tank with long-nose pliers, push the new filter onto it, and push the filter back into the tank. Finally, put the chainsaw back together and adjust the carb if necessary.

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