
If you're looking to drain the fuel tank of a 2009 Honda Shadow, there are a few methods you can try. The first is to put the bike on reserve and ride it until it cuts off. Another way is to open the petcock to the reserve position and the gas cap to vent the tank. This method will not drain all the gas, but it will get most of it out. If you're looking to drain the tank completely, you will have to remove it and either turn it upside down or remove the petcock.
How to Drain a 2009 Honda Shadow Fuel Tank
| Characteristics | Values |
|---|---|
| Tank size | 3.7 gallons with a 0.9-gallon reserve |
| Fuel type | Non-ethanol |
| Draining methods | 1. Ride until empty. 2. Use a bulb siphon. 3. Remove the output hose to the injectors and power the pump directly at the pump connector. |
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What You'll Learn

Draining the tank without removing it from the bike
To drain the fuel tank of a 2009 Honda Shadow without removing it from the bike, you can try the following methods:
Method 1: Using a Kerosene Siphon Pump
- Purchase a kerosene siphon pump from a hardware store.
- Place a five-gallon gas container on a steel chair next to the bike.
- Use the pump to siphon the fuel from the tank into the container.
- This method is faster and safer than draining through the petcock.
Method 2: Draining through the Petcock
- Close the petcock.
- Start the bike and let it run for a few minutes until it dies from fuel starvation.
- Drain some fuel from the hose.
- Using needle-nose pliers, pinch and slide the clamp down the hose by about 1-2 inches.
- Take a flat screwdriver and carefully insert it between the top of the hose and the petcock.
- Gently pry the hose off the petcock using the screwdriver.
- Attach a piece of fuel line (available at auto parts stores) to the petcock, with the other end in a container large enough to hold the gas.
- Open the petcock to drain the fuel.
Method 3: Using a Bulb-Type Siphon
- Purchase a bulb-type siphon from an auto parts store.
- Use a gas can large enough to hold the fuel.
- Optionally, insert a piece of stiff wire inside the siphon hose to reach the bottom of the tank, being careful to avoid any potential sparks from the wire.
- Siphon the fuel out of the tank.
Method 4: Riding on Reserve
- Put the bike on reserve and ride it until it cuts off.
- This method may not get all the gas out, but it will drain most of it.
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Using a kerosene siphon pump to drain the tank
To drain the fuel tank of a 2009 Honda Shadow, one method is to use a kerosene siphon pump. This is a safe and effective way to remove most of the gas from the tank.
Firstly, locate the petcock valve. This is usually under the main/off/reserve switch. Place a clean container, large enough to hold the gas in your tank, next to the bike. You can use a five-gallon gas container, which can be placed on a steel chair, for example.
Next, open the petcock valve to the reserve position and open the gas cap to vent the tank. This will help release pressure and allow the fuel to flow more easily. Then, using a kerosene siphon pump, which can be found at most hardware stores, start the siphoning process by placing one end of the hose over the petcock valve and the other end into the container. Give the pump a few squeezes and let the siphoning begin.
This method will not get all the gas out of the tank, but it will remove most of it, making it easier and safer to handle the tank when it is removed from the bike.
An alternative method, if you do not have access to a siphon pump, is to manually drain the tank by pulling the small hose off the petcock valve and allowing the gas to flow into a bucket or container.
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Draining the tank with a fuel stabiliser
If you're planning to store your 2009 Honda Shadow for a long period, draining the tank and adding a fuel stabiliser is a good idea. Here's a step-by-step guide on how to do it:
Step 1: Prepare the Motorcycle
Start by preparing your motorcycle for the draining process. Park it on a level surface, engage the side stand, and ensure the engine is turned off.
Step 2: Drain the Fuel Tank
Locate the petcock valve, which is usually under the seat or fuel tank. Place a container large enough to hold the fuel beneath the petcock valve. Open the valve by turning it counterclockwise, allowing the fuel to drain into the container. Be careful when handling fuel, and ensure proper ventilation during the process.
Step 3: Use a Siphon Pump (Optional)
If you want to speed up the draining process, consider using a kerosene siphon pump. Place a five-gallon gas container on a sturdy object next to the motorcycle, and use the pump to siphon the fuel. This method is safer and more efficient than waiting for the fuel to drain gravity.
Step 4: Clean the Fuel Tank
Once the fuel tank is drained, it's a good idea to clean it, especially if there was ethanol in the old fuel. You can use a bulb-type siphon to remove any remaining fuel residue and ensure the tank is clean and dry before refuelling.
Step 5: Refuel with Fresh Fuel and a Stabiliser
After ensuring the fuel tank is clean, refill it with fresh, non-ethanol fuel of a higher octane rating. Add a fuel stabiliser such as Sta-Bil to the tank to help maintain fuel quality during storage.
Step 6: Run the Engine
Start the engine and let it run for about 10 minutes. This will ensure that the stabilised fuel reaches all parts of the fuel system, including the fuel lines and injectors.
Step 7: Top Up the Tank
After running the engine, turn off the motorcycle and allow it to cool down. Top up the fuel tank to the neck, ensuring it is full before storage.
If you plan to store the motorcycle for more than a year, repeat the process of draining, cleaning, and refuelling with a stabiliser annually. This will help maintain the fuel system and prevent issues caused by stale or degraded fuel.
Remember to always exercise caution when handling fuel, and refer to your motorcycle's user manual for any specific recommendations or precautions related to fuel drainage and storage.
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Draining the tank with a bulb-type siphon
Firstly, you need to open the petcock to the reserve position and open the gas cap to vent the tank. This will not drain all the gas from the tank, but it will remove most of it. If you wish to reuse the gas, you can pour it back into the tank when you are done.
Next, you can use a bulb siphon to drain the remaining fuel. Place the gas can next to the bike and insert one end of the siphon into the petcock, placing the other end into the gas can. You can add a piece of stiff wire inside the siphon hose to straighten out the coils, ensuring it reaches the bottom of the tank. However, be cautious not to use wire that is too long, as it may touch the inside of the tank and cause a spark.
Finally, squeeze the bulb siphon a few times to start the flow of gas, and it will begin to siphon the remaining fuel into the gas can. This process will remove around 90% of the old gas from the tank.
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Draining the tank by riding until empty
If you want to drain your 2009 Honda Shadow's fuel tank by riding it until empty, there are a few methods you can try. Here is a detailed guide to help you with the process:
First, determine if you need to drain your fuel tank. If your Honda Shadow has been sitting idle for a long period, such as several months, it may be a good idea to drain and replace the old fuel. Riding the motorcycle until the tank is empty is one way to consume the old fuel before refilling with fresh fuel.
Next, prepare the motorcycle for riding. Check the fuel level and ensure there is enough fuel in the tank to ride safely. If the fuel level is low, you may need to add a small amount of fresh fuel to the tank before starting your journey.
Now, start the engine and ride your Honda Shadow as you normally would. Pay attention to the trip meter and mileage as you ride. On a Honda Shadow 750, the reserve fuel kicks in around 146 miles, and the bike can go about 110 miles on a single tank of gas. Keep in mind that your speedometer may vary slightly from the actual speed, so adjust your riding accordingly.
As you approach the reserve fuel level, be mindful of your riding conditions. Find a safe place to stop and refuel if needed. If you are in a remote area or have a long distance to cover, consider switching to reserve fuel to extend your range.
Finally, continue riding until the tank is completely empty. This may involve riding on reserve fuel for a short distance. Once the engine cuts off due to a lack of fuel, you have successfully drained the tank by riding. Remember to refill the tank with fresh fuel and a stabilizer before storing your Honda Shadow for an extended period.
By following these steps, you can effectively drain the fuel tank of your 2009 Honda Shadow by riding it until empty. This method allows you to consume the old fuel and replace it with fresh, stabilized fuel, ensuring your motorcycle is ready for storage or your next riding adventure.
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