Sylvie Willis
The Poulan 2150 chainsaw is a powerful tool for tree work and gardening. However, like any machine, it requires regular maintenance and servicing to keep it in good working order. One common issue that owners of the Poulan 2150 chainsaw face is the need to replace the fuel lines. This can be a tricky task, as the fuel lines are prone to becoming brittle and breaking, and it can be difficult to determine the correct routing of the new lines. In this discussion, we will explore the process of replacing the fuel lines on the Poulan 2150 chainsaw, including the tools required and the steps needed to ensure a successful and leak-proof installation.
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What You'll Learn
Fuel line routing
The Poulan 2150 chainsaw's fuel line routing is a relatively straightforward process, but attention to detail is crucial to ensure safe and proper functioning. Here is a step-by-step guide to help you through the process:
Step 1: Understanding the Primer Bulb
The Poulan 2150 chainsaw's fuel system begins with the primer bulb, which is a small, flexible rubber bulb located near the carburettor. Its purpose is to prime the engine with fuel, making it easier to start the chainsaw. One fuel line will lead into the primer bulb, bringing fuel from the tank.
Step 2: Routing the Fuel Lines
From the primer bulb, there should be two fuel lines leading out. One of these lines will be smaller in diameter and will be the fuel line that delivers fuel to the carburettor. This line should be carefully routed from the primer bulb to the carburettor, ensuring it doesn't kink or bend too sharply. The other line, which may be slightly larger in diameter, is the return line and will lead back to the fuel tank.
Step 3: Identifying the Correct Line for the Carburettor
It is essential to identify which line connects to the carburettor. The carburettor will have two nipples: one closer to the top and one below it. The small fuel line with the fuel filter should connect to the nipple closest to the top of the carburettor. This line delivers fuel from the primer bulb to the carburettor, where it is mixed with air to create the air-fuel mixture necessary for engine combustion.
Step 4: Connecting the Return Line
The other fuel line, which is typically the return line, connects to the "IN" or negative pressure side of the primer bulb. This line returns any unused fuel from the carburettor back to the tank to be reused. It is important to ensure that this line is also securely connected and doesn't leak.
Step 5: Checking for Leaks
Once the fuel lines have been properly routed and connected, it is important to check for any leaks. A leak-tight fit can be achieved by using appropriate fuel-compatible caulk or hot-melt glue at the connections. A drill motor with a suitable drill bit can also be used to open up the holes for a tighter fit, if necessary.
By following these steps and paying close attention to the fuel line routing, your Poulan 2150 chainsaw should be properly equipped to deliver fuel from the tank to the carburettor and back, ensuring the efficient and safe operation of your chainsaw.
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Fuel line replacement
If you need to replace the fuel lines on your Poulan 2150 chainsaw, you'll need to know the correct fuel line size and the routing of the fuel lines.
The fuel line from the tank to the carburetor is the smaller diameter line. You can replace this line with a 3/32" inner diameter and 3/16" outer diameter Tygon fuel line. To get a leak-tight fit, you can use an 11/64" drill bit to enlarge the hole in the top of the fuel tank.
The fuel line routing for the Poulan 2150 chainsaw is as follows: one line goes to the primer bulb, and the other line goes from the primer bulb to the carburetor. The fuel line with the fuel filter will need to go to the fuel nipple on the carburetor that is closest to the top. The other nipple on the carburetor is for the return line from the primer bulb.
If your chainsaw has a double barb fitting, it is likely on the primer return side. In this case, you may need to drill out the fuel suction line hole and use a hose barb.
It is recommended to use a new fuel line rather than reusing an old one, and to ensure a leak-tight fit, you may want to consider using a barbed fitting to connect the lines.
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Fuel line size
The Poulan 2150 chainsaw uses two fuel lines with different diameters. The fuel line from the tank to the carburettor is the smaller diameter line, while the other line is thicker.
The exact size of the smaller fuel line is not specified in the sources, but it is mentioned that it is smaller than 1/16th of an inch. One source recommends using a 3/32" inner diameter and 3/16" outer diameter Tygon fuel line as a replacement. This source also mentions that a 11/64" drill bit is needed to enlarge the hole in the top of the fuel tank for this line to fit.
The larger diameter line has been described as having a double barb fitting and being thicker wall [ed]. A recommendation for this line is to use a drill bit that is "just a touch smaller" than 1/64th of an inch to enlarge the hole.
It is important to note that modifying fuel lines can be dangerous and should only be done by qualified individuals.
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Fuel line kit
The Poulan 2150 chainsaw uses a fuel line with a 3/32" inner diameter and a 3/16" outer diameter. This fuel line is made of Tygon and is typically replaced using a 1/64" drill bit to enlarge the hole in the top of the fuel tank.
A fuel line kit for the Poulan 2150 chainsaw is available for purchase online, with prices ranging from $8.99 to $16.99. This kit includes a fuel line with a compatible diameter and is designed to replace the existing fuel lines on the chainsaw. The kit typically includes four fuel lines of different sizes, although some kits may include additional parts such as a carburetor or trimmer head.
When purchasing a fuel line kit, it is important to ensure that it is compatible with the specific model of your chainsaw. In this case, the fuel line kit is designed for the Poulan 2150 model, but it is also compatible with other Poulan chainsaws such as the 2050, 2055, 2075, and 2100 models.
It is recommended to follow the instructions provided with the fuel line kit for proper installation. However, some general steps may include removing the old fuel lines, cleaning the area, and installing the new fuel lines with any necessary fittings or seals. It is important to ensure that the fuel lines are securely connected to prevent leaks and that all safety precautions are followed when working with fuel and power tools.
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Fuel line drilling
To replace the fuel lines on a Poulan 2150 chainsaw, you will need to know the correct size of the fuel line and the appropriate drill bit size.
The fuel line from the tank to the carburetor is the smaller diameter line. To replace this, you will need to enlarge the hole in the top of the fuel tank with a suitable drill bit. A 1/64" drill bit is recommended, but this size is quite small and may need to be specially ordered. The next size up, 1/16", is also considered very small. Once the hole is enlarged, you can replace the fuel line with a 3/32" inner diameter and 3/16" outer diameter fuel line. A 11/64" drill bit will create a snug fit for a 3/16" outer diameter fuel line.
It is important to note that some Poulan 2150 chainsaws have a double barb fitting on the primer return side. In this case, you will need to drill out the fuel suction line hole and use a hose barb with the line. When choosing a drill bit for this, it is recommended to go for a size just smaller than the hose barb, such as 1/64".
When installing the new fuel line, it is recommended to use a single length of fuel line from the carburetor nipple, through the fuel tank, and into the tank with the fuel pickup/filter at the end. The total length of this hose is estimated to be around 9".
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Frequently asked questions
The Poulan 2150 chainsaw uses a 3/32" inner diameter and 3/16" outer diameter Tygon fuel line.
The fuel line from the tank to the carburetor is the smaller diameter line. The fuel line routing is from the primer bulb to the carburetor, with the small fuel line connected to the fuel nipple closest to the top of the carburetor.
Yes, you can use a 3/16" outer diameter fuel line instead of the smaller stock fuel line. However, you will need to enlarge the hole in the fuel tank using an 11/64" drill bit to ensure a snug fit.
The fuel line in the Poulan 2150 chainsaw is made of Tygon material.
