Ameer Randolph
Draining a Kawasaki mule fuel tank can be done in several ways. The quickest and easiest method is to jump the fuel pump relay and connect the fuel feed line to a catch basin, allowing the vehicle's fuel pump to drain the fuel. Another option is to remove the filler neck and check valve from the tank, or to completely remove and drain the tank, although this is the most time-consuming and costly option. It is important to act quickly if the fuel is contaminated, as it can cause internal engine damage.
| Characteristics | Values |
|---|---|
| Easiest way to drain mule fuel tank | Disconnect the fuel feed line from the engine and connect it to a catch basin (e.g. bucket, gas can) to collect the fuel. Locate the fuel pump relay and jump the positive side to power it and pump out the bad fuel. |
| Alternative methods | Remove the filler neck and check valve from the tank. Remove and drain the tank (this option is more time-consuming and costly). Siphon out the fuel using a small hose. |
| Fuel contamination | Contaminated fuel can cause engine damage. It is advised to drain the tank, refill with good fuel, and test the engine for damage, especially cylinder compression pressure. |
| Fuel system cleaning | Clean the entire fuel system, including the fuel tank, petcock, lines, filter, and carb. Berryman B12 can help dissolve varnish, dirt, and remove moisture from the system. |
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What You'll Learn
Jump the fuel pump relay with the fuel feed line disconnected from the engine
Jumping the fuel pump relay with the fuel feed line disconnected from the engine is one of the easiest ways to drain a mule fuel tank. This method allows you to use the vehicle's fuel pump to drain the fuel. Here is a step-by-step guide to help you through the process:
Locate the Fuel Pump Relay:
Begin by parking your vehicle on flat ground and opening the hood to access the engine bay. The fuel pump relay is typically located near the fuse box or the battery terminals. However, it is always a good idea to refer to your owner's manual for the exact location.
Disconnect the Battery Terminals:
Once you have located the fuel pump relay, the next step is to carefully disconnect the battery terminals. You will need to remove the black negative cable, but you can also remove both the positive and negative cables if you prefer.
Connect the Fuel Feed Line to a Catch Basin:
Disconnect the fuel feed line from the engine and connect it to a suitable catch basin, such as a bucket or gas can. This will collect the fuel that is pumped out of the tank during the draining process.
Jump the Fuel Pump Relay:
To jump the fuel pump relay, you will need to connect a jumper cable from the positive terminal of the battery to the corresponding battery terminal, ensuring that it does not come into contact with any other metal. This will provide power to the fuel pump.
Start the Engine and Drain the Fuel:
With the jumper cable connected, start the engine and let it run for a short period, around 15 seconds. Then, locate the fuel pump relay and jump the positive side (with the key off) to power the fuel pump. This will activate the fuel pump, allowing you to pump out the fuel from the tank through the disconnected fuel feed line into the catch basin.
It is important to exercise caution during this process and ensure that you are working in a well-ventilated area to avoid inhaling fuel vapors. Always refer to your vehicle's manual or seek professional guidance if you are unsure about any steps.
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Remove the filler neck and check valve from the tank
Removing the filler neck and check valve from the tank is one of the options to drain a mule fuel tank. This option is considered more challenging than the first option, which involves jumping the fuel pump relay. However, it is still a more feasible approach than the third option, which involves removing and draining the tank, as that is the most time-consuming and costly method.
To remove the filler neck and check valve from the tank, you will need to carefully detach the filler neck from the fuel tank. The filler neck is the tube that connects the fuel cap to the fuel tank. It is typically secured to the tank with a combination of bolts, clamps, or other fasteners. You will need to locate and loosen or remove these fasteners to detach the filler neck.
Once the filler neck is removed, you can access the check valve, which is usually located near the filler neck or the fuel pump. The check valve prevents fuel from flowing back out of the tank and typically consists of a small flap or ball valve. Depending on the specific design of your mule fuel tank, the check valve may be secured with bolts, clamps, or other types of fasteners. Loosen or remove these fasteners to detach the check valve.
It is important to note that removing the filler neck and check valve can be challenging, especially if you are working in a tight space. It is always recommended to refer to the vehicle's service manual for specific instructions and safety precautions. Additionally, having basic mechanical knowledge, skills, and a set of appropriate tools will make the process smoother.
After successfully removing the filler neck and check valve, you can proceed to drain the fuel from the tank. Place a suitable container beneath the tank to collect the drained fuel. You may need to tilt the mule vehicle to ensure that all the fuel flows out completely. Remember always to handle fuel with caution and ensure proper ventilation during the draining process.
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Remove and drain the tank
Removing and draining the tank is the most time-consuming option, but it may be necessary if other methods of draining the fuel have not worked. Here is a step-by-step guide to removing and draining the fuel tank of a Kawasaki Mule:
First, locate the fuel pump relay. With the key off, jump the positive side of the fuel pump relay to power it and make the fuel pump run. This will help you pump out any bad fuel.
Next, disconnect the fuel feed line from the engine and connect it to a catch basin, such as a bucket or gas can. This will allow you to collect the drained fuel and prevent spills.
Now, you can start the vehicle and allow the fuel pump to drain the tank. Make sure to have a fire extinguisher nearby as a safety precaution.
Once the tank is drained, it is important to clean the entire fuel system, including the fuel tank, fuel lines, and carburetor. This is because the fuel system may have built-up sludge or dirt, especially if the vehicle has been sitting for a long time.
You can use a product like Berryman B12 to help dissolve varnish, dirt, and moisture in the system. However, it may not fix all issues, so a thorough cleaning is still recommended.
Finally, reassemble the fuel system and ensure that all parts, such as the fuel filter and spark plug, are installed correctly.
By following these steps, you can effectively remove and drain the fuel tank of a Kawasaki Mule, ensuring that the vehicle runs smoothly and efficiently.
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Siphon fuel out with a small hose
To siphon fuel out of a Kawasaki mule fuel tank using a small hose, you will need a length of clear plastic tubing, about 1 inch (2.5 cm) in diameter, and an empty gas can or another closed container to siphon the fuel into.
Start by locating the fuel pump relay and jumping the positive side (with the key off) to power, this will help you drain the fuel using the vehicle's fuel pump. Place the gas can on the ground near the mule fuel tank opening. You will need two lengths of tubing: one long enough to reach deep into the fuel tank and another shorter length that will reach just inside the tank. Insert the longer tube into the fuel tank and the shorter tube into the gas can.
To start the siphoning process, create a vacuum by sucking on the end of the tube that is in the gas can. This will allow you to start the flow of fuel. Once the fuel is flowing, keep the tube lower than the level of fuel in the tank to maintain the flow. You can also use the EZ Fuel Siphon Hose, which is designed to easily transfer fuel and only requires you to insert and jiggle the hose to start the siphoning process.
Note that this method may not work on fuel tanks with special anti-siphon barriers, although sometimes a screwdriver can be used to hold these barriers open.
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Clean the entire fuel system
To clean the entire fuel system of your Kawasaki Mule, you will first need to drain the fuel tank. This can be done by jumping the fuel pump relay with the fuel feed line disconnected from the engine and connected to a catch basin, allowing you to use the vehicle's fuel pump to drain the fuel.
Once the fuel tank is drained, you can proceed to clean the fuel system. One option is to use a fuel system cleaner, such as Red Line, which can be added to a fresh tank of gas. Fuel system cleaners work by releasing and removing deposits and contaminants that have built up in the fuel system. These deposits can include varnish, rust particles, corrosion, and rubber particles from deteriorating hoses. The cleaner helps to dissolve or loosen these deposits so they can be burned in the combustion process or trapped by filters.
It is also important to clean or replace any filters that may be clogged with contaminants. This includes the fuel injector filter baskets and the pickup screen. Additionally, it is recommended to test the engine for damage, especially with regard to cylinder compression pressure, as gasoline can cause internal engine damage.
Another option for cleaning the fuel system is to remove and clean the fuel tank. However, this option is more time-consuming and costly. It involves removing the filler neck and check valve from the tank, which can be a challenging process.
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Frequently asked questions
There are a few options to drain a mule fuel tank:
- Disconnect the fuel feed line from the engine and connect it to a catch basin (like a bucket) to collect the fuel. Find the fuel pump relay and jump the positive side to power and pump out the bad fuel.
- Remove the filler neck and check valve from the tank.
- Remove and drain the tank—this is the most time-consuming and costly option.
- Siphon out the fuel with a small hose.
If the fuel system is dirty or out of adjustment, this could indicate that the mule fuel tank needs to be drained. Signs of this include pulling more fuel when you pull the choke out, causing the mule to run richer.
If the front plug is clean, this could indicate that the plug is not firing or that the cylinder is not getting enough fuel. The spark plugs should be fuel-burnt if the choke has been run for a long time.
If your mule fuel tank has been contaminated with bad fuel, it is important to drain the tank as soon as possible and refill it with good fuel. You should also test the engine for damage, especially with regard to cylinder compression pressure.
