Replacing The Fuel Line In Your Bolens Bl110: A Step-By-Step Guide

The Bolens BL110 is a gas string trimmer that is known to have issues with its fuel lines. The fuel lines can become brittle and crack over time, or they may disintegrate or fall off. This can cause fuel to leak from the carburetor, resulting in the engine not starting or running erratically. Replacing the fuel lines can be a complex task, as they are only sold as part of the fuel tank assembly, which includes the fuel lines, fuel cap, fuel filter, and screws needed for assembly. It is important to drain the gas from the tank before installing a new fuel tank assembly. Additionally, proper tools such as torx/Phillips drivers, long-nose pliers, cutters or scissors, and two-cycle engine oil are required for this repair.

The fuel line with the weight goes from the tank opening to the other side

To replace the fuel line in a Bolens BL110, you'll need to pay particular attention to the line with the weight. This weighted line runs directly from the tank opening to the other side of the tank, with the weight installed at the end. It should almost touch the opposite wall of the tank.

The other line is a simple vent line, which you should leave about an inch protruding inside the tank. Once you've hooked up the lines, pump the purge bulb to ensure they are installed correctly. You should see fuel surging through the lines. If, after several pumps, the fuel seems to run out, switch the lines at the carb end and try again.

The other line is a vent line and should be left protruding inside

To replace the fuel lines in a Bolens BL110, you will need to understand the function of each line. One line, the fuel line, will need to be connected from the opening of the tank to the other side, almost touching the opposite wall of the tank. The other line is a vent line and should be left protruding inside by about an inch.

Vent lines are important in fuel systems as they allow the tank to breathe. This means that when fuel is pumped out, air can get in, and when fuel is added, air can escape. Without a vent line, a vacuum would be created, and the tank would not function properly. The vent line should be routed higher than the tank and should exit below it to prevent spillage if the tank is overfilled. It is also important that the vent line does not have any dips where fuel or condensation can get trapped. If fuel becomes trapped, the tank may build up pressure and damage could occur.

Once you have hooked up the vent line and the fuel line, pump the purge bulb to ensure the lines are installed correctly. You should see fuel surging through the lines. If not, switch the lines at the carb end and try again.

The fuel tank assembly is where the fuel is filtered and stored

The fuel tank is typically made of durable plastic or metal and is designed to hold a specific amount of fuel. It is usually located at the base of the trimmer, acting as a stable foundation for the machine. The tank is equipped with a fuel cap that securely seals the fuel inside, preventing leaks and vapour emissions. The fuel cap also plays a crucial role in allowing the operator to refill the tank safely.

Fuel lines are an integral part of the fuel tank assembly. They are responsible for transporting fuel from the tank to the carburettor, where it is mixed with air before entering the engine for combustion. These lines are typically made of flexible rubber or plastic and are designed to withstand the pressure and corrosion associated with fuel systems. The fuel lines connect to the tank at one end and the carburettor at the other, ensuring a continuous flow of fuel during operation.

In addition to the fuel tank and fuel lines, the fuel tank assembly also incorporates a fuel filter. This filter is strategically placed along the fuel line to capture and remove any contaminants, such as dirt or debris, that may be present in the fuel. By filtering the fuel, the assembly ensures that only clean fuel reaches the engine, reducing the risk of engine damage and performance issues caused by contaminated fuel.

The fuel tank assembly also includes a fuel valve or petcock, which controls the flow of fuel from the tank to the carburettor. This valve can be adjusted to regulate the fuel supply, ensuring the engine receives the appropriate amount of fuel for optimal performance. Additionally, the assembly may feature a fuel pump, which creates positive pressure to facilitate the movement of fuel through the lines, especially in complex fuel systems with multiple lines and components.

Overall, the fuel tank assembly in the Bolens BL110 plays a critical role in fuel storage, filtration, and delivery. By combining the fuel tank, fuel lines, fuel filter, and other components, the assembly ensures that the engine receives a consistent supply of clean, filtered fuel, contributing to the reliable and efficient operation of the trimmer.

The carburetor mixes air and gas

The carburetor is a vital part of your Bolens BL110, mixing air and gas to ensure the engine runs smoothly. This small engine carburetor is a common feature on many lawnmowers, trimmers, and other garden equipment.

The carburetor is a key component in the fuel system, and it is important to understand how it works when replacing fuel lines. The fuel line connects the gas tank to the carburetor, and the carburetor mixes the incoming fuel with air before it enters the engine.

The process of mixing air and gas in the carburetor is complex and precise. As the fuel enters the carburetor from the fuel line, it passes through a small orifice, creating a fine mist of fuel. This mist is then mixed with air, which is drawn into the carburetor through a separate passage. The amount of air and fuel is carefully controlled to ensure the correct mixture. This mixture is then drawn into the engine, where it is ignited to power the equipment.

The carburetor is an intricate part with several key components. Firstly, the fuel bowl gasket ensures a tight seal, preventing leaks. The fuel inlet valve controls the flow of fuel into the carburetor, and the float chamber regulates the fuel level. The main jet is a small orifice that the fuel passes through, creating the fine mist. The air passage allows air to enter the carburetor, and the throttle valve controls the amount of air and fuel mixture entering the engine. Finally, the choke valve is used to enrich the fuel mixture during cold starts.

When replacing the fuel lines on your Bolens BL110, it is important to understand the role of the carburetor and how it interacts with the fuel lines. This will help ensure a correct installation and a smoothly running engine.

The primer bulb fills the carburetor with fuel

The primer bulb is an essential component of your Bolens BL110 trimmer's fuel system. When you press the bulb, it creates a suction force that draws fuel from the tank through the fuel lines and into the carburettor. This process ensures that the carburettor is filled with fuel, enabling your engine to start and run smoothly.

To ensure the primer bulb effectively fills the carburettor with fuel, it is crucial to have properly functioning fuel lines and a well-maintained fuel tank. If the fuel lines are cracked or split, or if the line inside the tank is damaged, it can disrupt the flow of fuel to the carburettor. Therefore, it is essential to inspect the fuel lines regularly and replace them if necessary.

Additionally, the primer bulb itself should be checked for any cracks or holes, as damage to the bulb can hinder its ability to draw fuel. A faulty primer bulb may need to be replaced to ensure optimal fuel flow to the carburettor.

When replacing the fuel lines or the primer bulb, it is important to follow the correct routing. The fuel line from the tank connects to the longer stem of the primer bulb, while the line from the shorter stem of the primer bulb connects to the top of the carburettor. The bottom of the carburettor is connected to the fuel line with a filter inside the tank. This proper routing ensures that fuel flows effectively from the tank, through the primer bulb, and into the carburettor.

By understanding the function of the primer bulb and maintaining the fuel system, you can ensure that your Bolens BL110 trimmer receives the necessary fuel supply for smooth and efficient operation.

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