Motorcycle Fuel Petcocks and Taps for Suzuki Katana 750
The petcock and tap on your Suzuki Katana 750 motorcycle is designed to regulate the movement of gasoline from the tank into the carburetor and finally to the engine. If you need to replace the manual or vacuum petcock on your Suzuki GSX750F, it is important to know what types of meters there are and what they do.
What does a motorcycle fuel petcock or tap do?The motorcycle fuel petcock and tap on your Suzuki Katana is a meter that is installed in the front of the fuel tank on models without a gas gauge. Therefore, it allows you to regulate the flow of gasoline with on, off, and fuel-reserve selections.
A filter petcock for the Suzuki bike is a special design that keeps dross out of the carburetor as fuel moves into it from the tank.
What types of GSX750F petcocks are there?Your Katana 750 may have a manual or an automatic petcock. Both types are installed in the front of the fuel tank and require you to switch them between modes.
- Manual valves: These petcocks control the flow of gas based on gravity. You need to switch them to the on, off, or reserve mode as needed. The on mode is selected by moving the switch to the 6 oclock position before starting your bike. It allows gas to flow without restriction from the tank. When the fuel in the main tank runs out, switch the lever to reserve mode at the 9 oclock position, so you can ride your Katana to a refueling point. It is important to have the switch turned to the off position when you are not riding your bike so that gas does not overfill the motor.
- Automatic Suzuki petcocks: This type regulates flow based on the vacuum created by the motion of the pistons. They allow for an additional prime mode in the 3 oclock position. An off mode is unnecessary since vacuum meters contain a valve that prevents gravitational fuel flow when your Suzuki Katana 750 is not on. The prime mode is useful when your GSX750F is completely out of gas. When you turn the switch to prime mode, any gas left moves by gravity while the bike is off, letting you start it and get to a gas station. After you start your Katana with the switch in prime mode, you need to turn the switch to the on position to keep too much fuel from going into the crankcase.
Your Katana 750 petcock should include:
- The main knob assembly
- O rings
- A spring that opens the diaphragm
- A rubber diaphragm
- A plastic diaphragm space block
- A screen for filter models
- Determine if the parts are from an OEM distributor.
- Pick a vacuum or a manual type.
- Select a petcock specified for the Katana model year, and pay attention to manufacturer part numbers.
- Make sure the kit includes the required parts.