Replacing Fuel Lines In Your Mantis: A Step-By-Step Guide

Mantis tillers are gasoline-powered engines designed for use in small spaces such as flower beds and gardens. The fuel lines in a Mantis tiller can become old or damaged and may need to be replaced. This process involves removing the spark plug wire, draining the gas tank, and locating and removing the old fuel lines. A replacement fuel line kit specific to the model of the Mantis tiller is then installed, ensuring that the fuel lines are connected correctly and securely.

Safety precautions before replacing fuel lines

Before replacing the fuel lines of your Mantis tiller, there are several safety precautions you should take to ensure your safety and the integrity of the equipment. Here are some essential steps to follow:

• Park the tiller on a level surface: It is important to find a flat, stable area to park the tiller. This will ensure that it remains stationary and secure during the maintenance process.
• Remove the spark plug wire: For safety reasons, it is crucial to disconnect the spark plug wire from the spark plug tip. This will prevent any accidental ignition during the fuel line replacement process.
• Wear protective gloves: Gasoline can be harmful to your skin, so it is recommended to wear gloves when handling the fuel tank and any components that come into contact with gasoline.
• Use a plastic container for gasoline: Place a plastic container on the ground next to the tiller. You will use this container to safely store the gasoline that you will drain from the fuel tank.
• Relieve fuel pressure: Before removing or disconnecting any fuel lines, it is essential to relieve the pressure in the fuel system. Locate the fuel pump fuse or relay in the fuse box and remove it while the engine is running. This will prevent pressurized gasoline from spraying out when you start removing the fuel hoses.
• Disconnect the negative battery terminal: To further reduce the risk of accidental ignition, disconnect and isolate the negative terminal on the battery. This will prevent any chance of an electric spark during the maintenance work.
• Ventilation and fire safety: Always work in a well-ventilated area to avoid inhaling gas fumes. Have a fire extinguisher nearby as an additional safety measure.
• Eye protection and protective clothing: Wear eye protection to shield your eyes from any splashing gasoline. It is also advisable to wear old clothes that you don't mind getting dirty or stained.
• Clean-up supplies: Have rags or towels readily available to wipe up any spilled gasoline. A plastic sheet can be placed under the tiller to catch any drips or leaks during the process.
• Consult the service manual: Every vehicle is different, so it is essential to refer to the Mantis tiller service manual for specific instructions and precautions related to your model. This will help ensure that you don't accidentally damage other components during the fuel line replacement process.

By following these safety precautions, you can help ensure a safe and successful fuel line replacement for your Mantis tiller.

Removing the fuel from the tank

To remove the fuel from the tank of your Mantis tiller, first park the tiller on a level surface and disconnect the spark plug wire from the spark plug tip. This is an important safety measure. Put on gloves to protect your hands from gasoline and place a plastic container on the ground next to the tiller.

Now you can remove the gas tank cap and pour the gasoline from the fuel tank into the plastic container. If you intend to store your tiller for 30 days or longer, it is very important to empty the gas tank to prevent severe engine damage.

If you want to run the tank dry, you can do so by running the tiller until it stalls, which will burn the remaining fuel in the line.

Locating the fuel lines

To locate the fuel lines of a Mantis tiller, first park the tiller on a level surface and remove the spark plug wire from the spark plug tip for safety. Put on gloves to protect your hands from gasoline. Place a plastic container on the ground beside the tiller. Remove the gas tank cap from the tiller and pour the gasoline in the fuel tank into the container.

Next, remove the wing nut that holds the air filter housing cover in place and take off the housing cover. You should now be able to see the lower fuel line that runs from the carburetor into the fuel tank. Grip this lower fuel line with a pair of pliers and pull it off the outlet on the carburetor.

Now, locate the upper fuel line, or primer line, which runs between the carburetor and the gas tank. Grip this with pliers and pull it from the primer outlet. Trace the fuel line to the gas tank and locate the rubber retaining gasket through which the fuel line and vent tube pass into the gas tank.

Removing the fuel lines

To remove the fuel lines from your Mantis tiller, start by parking the tiller on a level surface and removing the spark plug wire from the spark plug tip for safety. Put on gloves to protect your hands from gasoline. Place a plastic container on the ground next to the tiller and remove the gas tank cap. Pour the gasoline from the fuel tank into the container.

Next, remove the wing nut that holds the air filter housing cover in place, and take off the housing cover. Locate the lower fuel line that runs from the carburetor into the fuel tank. Grip this lower fuel line between the carburetor and gas tank with a pair of pliers and pull it off the outlet on the carburetor.

Now, grip the upper fuel line, or primer line, with the pliers between the carburetor and gas tank, and pull it off the primer outlet. Trace the fuel line to the gas tank and locate the rubber retaining gasket through which the fuel line and vent tube pass into the tank. Pull the short vent tube out of the tank and through the gasket with a pair of pliers.

Finally, pry the gasket off the gas tank with a screwdriver. Pull the fuel line, gasket, and fuel filter out of the gas tank and dispose of them properly.

Installing the new fuel lines

To install the new fuel lines, you will need a replacement fuel line kit specific to your model of Mantis tiller. This kit should include a fuel line with a filter attached, a rubber gasket, and a vent tube.

Begin by pushing the end of the new fuel line with the filter attached through the hole in the side of the tank and into the gas tank. Ensure that the filter will fit inside the tank. Next, press the rubber gasket firmly into place on the gas tank. Insert the short vent tube into the clip on the side of the engine.

Now, attach the main fuel line to the carburettor, connecting it to the primer. Then, attach the other end of the fuel line to the carburettor, ensuring that both lines are pushed firmly onto their respective outlets.

Finally, check that all components are securely fitted before closing up your Mantis tiller.

Frequently asked questions