Changing The Fuel Filter On A Ryobi Bp42: Step-By-Step Guide

Changing the fuel filter on your Ryobi BP42 leaf blower is a relatively straightforward task. The fuel filter is located inside the fuel tank and its purpose is to filter out tiny particles and debris before they can enter the carburetor, which could cause significant damage. The process involves removing the rear cover and carburetor, disconnecting the incoming fuel line, and replacing the fuel filter with a new one. You will need a few tools, such as a screwdriver, pliers, and wire cutters, as well as a new fuel filter and fuel line. The new fuel line should be tapered and lubricated with two-cycle engine oil to allow it to pass through the mounting hole more smoothly. This process should take around 15 minutes and will help to ensure the longevity and optimal performance of your leaf blower.

Removing the rear cover

To remove the rear cover of your Ryobi BP42, you will need a screwdriver and a pair of pliers. First, remove the four screws from the rear cover and set them aside. Then, carefully lift the rear cover off the engine. If you are having trouble removing the cover, check that you have removed all four screws.

Once the rear cover is off, you will be able to access the carburetor and fuel filter. Before servicing the carburetor or fuel lines, be sure to drain any excess fuel from the fuel tank.

If you are replacing the fuel filter, you will need to cut the old fuel line and remove the plastic washer securing the fuel filter in place. You can do this by prying the plastic washer away from the fuel filter/line outlet on the bottom of the fuel tank with a small screwdriver. Then, use wire cutters to cut the fuel line flush with the fuel tank. Finally, press the remaining portion of the fuel filter into the fuel tank with a small screwdriver. Turn the unit upside down and let the fuel filter fall out.

Be sure to dispose of the old fuel filter and any excess fuel in an appropriate manner.

Detaching the carburettor

To detach the carburettor of your Ryobi BP42, first drain any excess fuel from the fuel tank. Then, remove the two screws from the carburettor assembly and place them somewhere safe. Next, remove the choke plate and choke assembly from the carburettor. Now, disconnect the throttle cable from the carburettor using a lift-and-twist motion. Finally, disconnect the incoming fuel line from the carburettor inlet. You can use long-nosed pliers to help with this step if needed.

Disconnecting the incoming fuel line

To disconnect the incoming fuel line of your Ryobi BP42, you'll need to first drain any excess fuel from the fuel tank. Then, you can disconnect the incoming fuel line from the carburettor inlet. This should be a relatively easy process, but if needed, you can use long-nosed pliers to help with the disconnection. After that, push or pull the incoming fuel line through the carburettor mounting plate.

The next step is to remove the fuel filter. Start by prying the plastic washer away from the fuel filter/line outlet on the bottom of the fuel tank. Then, use wire cutters to cut the fuel filter/line outlet flush with the fuel tank. You can use a small screwdriver to press the remainder of the fuel filter into the fuel tank. Finally, with the fuel tank cap removed, rotate the trimmer upside down until the fuel filter falls out of the fuel tank.

Removing the fuel filter

To remove the fuel filter from your Ryobi BP42, first, remove the rear cover by unscrewing the four screws and lifting it away from the engine. Next, detach the carburetor by draining any excess fuel from the tank and then unscrewing the two screws holding the carburetor in place. Remove the choke plate and choke assembly, and disconnect the throttle cable using a lift-and-twist motion. Now, disconnect the incoming fuel line from the carburetor inlet—you can use long-nosed pliers to help with this step if needed. Push or pull the fuel line through the carburetor mounting plate.

To remove the fuel filter itself, first, pry away the plastic washer from the fuel filter/line outlet on the bottom of the fuel tank. Then, use wire cutters to cut the fuel filter/line outlet flush with the fuel tank. Next, use a small screwdriver to press the remaining part of the fuel filter into the fuel tank. Finally, with the fuel tank cap removed, rotate the trimmer upside down until the fuel filter falls out.

Installing the new fuel filter

To install the new fuel filter, start by cutting a taper at the end of the new fuel line. This will allow the line to pass through the mounting hole more smoothly. Lubricate the outside of the new fuel line with two-cycle engine oil, which will further aid in the smooth passage of the line through the mounting hole. Insert the new fuel line into the fuel tank and thread the tapered end through the mounting hole in the bottom of the tank. Pull the fuel line through the opening until the fuel filter nipple is partially seated in the mounting hole.

Use a large screwdriver to press down on the centre (plastic) portion of the fuel filter while pulling firmly and steadily on the fuel line from the bottom. Continue this motion until the fuel filter/line is fully seated within the mounting hole. Slide the plastic washer onto the new fuel line and use pliers to slide the washer over the fuel filter nipple, ensuring it is flush against the fuel tank. This step secures the fuel filter in position.

Pass the tapered end of the fuel line through the opening in the back of the carburettor mounting assembly. Use cutters to remove the taper from the line, ensuring it is cut squarely for proper connection to the carburettor. Finally, reconnect the incoming fuel line to the carburettor inlet.

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