Fuelling A Motorcycle Reserve Petcock Open Or Closed

Fueling Your Motorcycle: Reserve Petcock – Open or Closed?

Understanding your motorcycle's fuel system is crucial for safe and enjoyable riding. A key component often causing confusion is the reserve petcock. This article will clarify when to keep your reserve petcock open or closed, explaining its function and helping you avoid running out of fuel. Knowing how to properly use your reserve petcock will prevent frustrating roadside breakdowns and ensure your rides remain smooth.

What is a Reserve Petcock?

A reserve petcock is a valve located on your motorcycle's fuel tank. It controls the flow of fuel from the main tank to the carburetor or fuel injection system. Most motorcycles with a reserve petcock have a three-position switch: ON, RES, and OFF. The "ON" position allows fuel to flow from the main tank until it's nearly empty. Once the main tank is depleted, switching to "RES" accesses a small reserve supply of fuel, giving you enough to reach a gas station. The "OFF" position, obviously, shuts off the fuel supply completely.

When to Use the Reserve Position

The reserve petcock is a safety feature designed for emergencies. You should only switch to the "RES" position when your fuel gauge indicates near-empty or when your engine starts to sputter due to low fuel. It's not intended for regular use. Continuously running on reserve can lead to issues such as:

• Debris entering the fuel system: The reserve fuel may contain more sediment than the main fuel supply.
• Fuel pump damage (fuel injected motorcycles): Running the fuel pump dry can cause damage.
• Carburetor problems (carbureted motorcycles): Running the carburetor dry can lead to performance issues.

When to Keep the Reserve Petcock Closed

The reserve petcock should remain in the "OFF" position when your motorcycle is not in use or when you have a full tank of fuel. Keeping it closed prevents fuel leakage and ensures the reserve supply remains untouched until genuinely needed. Leaving it in the "ON" or "RES" position unnecessarily increases the risk of problems listed above. It is also good practice to check your fuel level frequently to prevent accidentally running out of fuel.

Maintaining Your Fuel System

Regular maintenance of your fuel system is essential to prevent problems related to the reserve petcock and your motorcycle's overall performance. This includes:

• Regular fuel filter changes: This prevents debris from clogging the fuel system.
• Checking for fuel leaks: Regularly inspect the fuel lines and connections for any leaks.
• Using high-quality fuel: Using clean, high-quality fuel will minimize the amount of sediment in your tank.

Understanding Your Motorcycle's Manual

Always consult your motorcycle's owner's manual for specific instructions on using the reserve petcock and maintaining your fuel system. The information provided in this article serves as general guidance, but specific procedures may vary depending on the make and model of your motorcycle.

By understanding the proper use of your motorcycle's reserve petcock and practicing good fuel system maintenance, you can avoid frustrating breakdowns and ensure many miles of safe and enjoyable riding. Remember, the reserve is for emergencies only – plan your fuel stops accordingly to avoid relying on it.