Mercedes Mullins
Draining a jet ski's fuel tank is a common practice for owners, especially if the fuel has gone bad, water has gotten into the tank, or maintenance is required. It is important to note that most personal watercraft, such as jet skis, do not include a plug for easy drainage. To drain the tank, you will need a siphon pump, a spare gas container, and hoses with hose connectors. First, turn off the motor and let the engine and tank cool down. Then, attach the hoses and connectors to the pump and open the fuel cap. Insert the intake hose into the fuel tank and place the discharge hose into the empty fuel container. Finally, start pumping to transfer the fuel from the jet ski to the gas can. After you have siphoned most of the fuel, you can use something absorbent, like shop rags or cotton rope, to remove any residual fuel or water.
How to Drain a Jet Ski Fuel Tank
| Characteristics | Values |
|---|---|
| Reasons for Draining | Fuel has gone bad, Water has gotten in, performing maintenance, storing the jet ski, winterizing |
| Equipment | Siphon pump, empty gas container, hose, hose connector |
| Safety | Turn off the motor, remove the key, let the engine and tank cool down |
| Siphoning | Attach the hose and connector to the pump, open the fuel cap, insert the intake hose, place the empty fuel container on the floor below the craft's fuel tank, pump the handle 3-4 times |
| Additional Steps | Rinse the siphon pump after use, use in a well-ventilated area, use an empty container approved for gasoline |
| Water in the Tank | Use a long piece of rubber hose to reach the bottom of the tank, use a blow gun attached to an air compressor, use tampons to mop the bottom of the tank |
| Alternative Methods | Use a copper brake line, use a fuel transfer pump |
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What You'll Learn
Siphoning: use a manual or electric pump to remove fuel
To drain your jet ski's fuel tank, you can use a manual or electric siphon pump. This is a safer method than trying to suck fuel through a hose. Before you begin, turn off the motor and remove the key. Wait for the engine and tank to cool down—siphoning hot fuel is dangerous and could cause burns.
Attach a hose and hose connector to both ends of the pump and tighten the connector securely. Ensure your fuel container is empty and approved for use with gasoline. Place the container on the floor, positioning it so that it is lower than the jet ski's fuel tank.
Open the fuel cap on the jet ski and insert the intake hose until the end is submerged. The intake hose is usually found near the hand pump. Hold the pump mechanism with one hand while pulling out the pump handle. Push the handle back in three or four times to start the gas flowing. At this point, you won't need to keep pumping.
Remember to use the pump only in a well-ventilated area, as gas fumes can be harmful. When you've finished, rinse out the siphon pump before storing it.
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Hose attachment: ensure a tight seal to avoid spills
To drain a jet ski's fuel tank, you will need a siphon pump, a spare gas container, and a hose attachment. Before you begin, ensure that the engine and tank are cool to avoid the dangers of handling hot fuel, which could cause burns.
When setting up your siphon pump, attach a hose adapter and a hose to each of the two sides of the pump. One side will be for your intake hose, and the other for your discharge hose. The intake hose is usually located near the hand pump. Ensure that the hose connectors are tightened securely to avoid any spills or leaks.
Once the pump is set up, open the fuel cap on the jet ski and insert the intake hose until the end is submerged in the fuel. Place the discharge hose into the empty fuel container, ensuring that it is positioned lower than the craft's fuel tank to allow gravity to assist in the siphoning process.
Now you are ready to start pumping. Hold the pump mechanism with one hand and use the other hand to pull out the pump handle. Push the handle back in three to four times to start the gas flowing. Once the gas starts flowing, gravity will take over, and you will no longer need to keep pumping.
Remember to rinse out the siphon pump when you are finished and only use it in a well-ventilated area, as gas fumes can be harmful to your health.
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Fuel container: place below the jet ski's tank to aid siphoning
To drain a jet ski's fuel tank, you will need a siphon pump, a spare gas container, and a hose. It is important to ensure that the jet ski's engine is turned off and that the tank has cooled down before beginning the siphoning process.
The fuel container should be placed below the jet ski's tank to aid in the siphoning process. This positioning will allow gravity to assist in pulling the fuel into the canister. The siphon hose should be inserted into the jet ski's fuel tank, with the other end placed into the fuel container.
It is important to use a container that is approved for use with gasoline and is large enough to hold the volume of fuel in the jet ski. Once the hoses are in place, the siphon pump can be activated by pulling out the pump handle three to four times until the gas starts to flow. At this point, gravity will take over, and the fuel will continue to flow without the need for further pumping.
After the fuel has been drained, it is important to rinse and store the siphon pump properly. Additionally, the jet ski's fuel tank should be allowed to air out before refilling it with fresh fuel.
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Safety: work in a well-ventilated area to avoid gas fumes
When draining a jet ski's fuel tank, safety should be a top priority. One of the key safety measures is to always work in a well-ventilated area to avoid inhaling gas fumes, which can be harmful to your health.
To ensure proper ventilation, it is recommended to take off the seats of the jet ski and let it air out for a few minutes. For some jet skis, such as the Sea-Doo Spark and EX, you may need to open an access port to ventilate the engine compartment effectively. This step is crucial, as vapors can escape from the hoses and tank, accumulating in the engine compartment. With the wrong spark, these vapors could ignite and cause an explosion.
Additionally, when siphoning fuel, it is important to use a manual or electric siphon pump, rather than attempting to siphon by mouth. Sucking on a hose that has been in contact with fuel can be extremely dangerous and should be avoided.
After draining the fuel, it is also important to properly dispose of the fuel in an approved container and rinse out the siphon pump before storing it. These steps will help ensure your safety when working with flammable liquids and their vapors.
By following these safety precautions and working in a well-ventilated area, you can effectively minimize the risks associated with draining a jet ski's fuel tank.
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Absorbing residue: use tampons or shop rags to mop the tank
To mop up the remaining fuel residue in your jet ski's tank, you can use tampons or shop rags. First, remove the filler tube from the neck of the tank. Then, attach a pack of tampons to a dowel and use this to mop the bottom of the tank and absorb the remaining fuel. This will significantly reduce the time needed to air out the tank before refilling it with fresh fuel. Alternatively, you can use shop rags or cotton/cloth rope to absorb the remaining fuel.
It is important to note that you should avoid using paper towels, as they can break down and tear apart, leaving residue in your fuel tank.
Before absorbing the residue, you will need to siphon out as much fuel as possible. To do this, you can use a manual or electric siphon pump, along with a spare gas container. Place the gas container below the jet ski's fuel tank, insert the siphon hose into the tank, and start pumping to transfer the fuel into the container. Make sure to inspect the siphon pump and hoses for any damage before use, as holes or cracks can cause fuel to spill.
After siphoning, you can then proceed with mopping up the remaining fuel residue using tampons, shop rags, or cotton/cloth rope.
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Frequently asked questions
You may need to drain your jet ski's fuel tank if the fuel has gone bad, if water has gotten into the tank, or if you are performing maintenance on the ski.
You will need a siphon pump, a spare gas container, and hoses with hose attachments.
First, turn off the motor and let the engine and tank cool down. Then, attach the hoses to the siphon pump and place the intake hose into the fuel tank and the discharge hose into the spare gas container. Finally, pump the fuel from the tank into the container.
Always work in a well-ventilated area as gas fumes can be harmful to your health. Ensure the spare gas container is approved for use with gasoline and is large enough to hold the volume of fuel in your jet ski.
After draining the fuel, you can use a pressure washer and a cleaning solution to clean the tank. Allow the tank to air out and dry completely before reinstalling it. You may also want to replace the fuel filter and hoses.
