Echo SRM-225 Trimmer Fuel Lines Replacement

Introduction

This guide details the replacement of the fuel lines, grommet, fuel filter, ventilator, purge bulb, and gas cap vent gasket for an Echo SRM-225 trimmer. All these components are typically included in an Echo Fuel Line Repower Kit.

Tools Required:

• Phillips #2 Screwdriver
• T27 Torx Screwdriver
• Flathead Screwdriver

Parts Required:

• Echo Fuel Line Repower Kit

Step 1 - Remove the air filter

Important Safety Note: Ensure any gasoline in the tank is emptied into an appropriate container before commencing work on the equipment.

Twist the knob on the air filter counter-clockwise and remove it.

(Image description: A hand is shown twisting the air filter knob counter-clockwise. Another image shows the trimmer's engine area after the air filter has been removed.)

Step 2 - Disconnect and remove fuel lines

Disconnect the fuel lines from the carburetor by pulling firmly.

After the lines are disconnected, use a flathead screwdriver or a pair of pliers to carefully pry the grommet from the gas tank.

(Image description: Three images show the process of disconnecting the fuel lines from the carburetor and removing the grommet from the gas tank.)

Step 3 - Inserting new grommet with fuel lines

It may be a tight fit. Applying a small amount of oil or grease to the grommet can help it slide in more easily.

Insert the fuel filter through the small hole in the gas tank.

Use your fingers to reset the grommet into the fuel tank. This may require some effort.

(Image description: Three images illustrate inserting the new grommet with fuel lines into the gas tank, including applying lubricant and seating the fuel filter.)

Step 4 - Reattaching fuel lines

Attach the black fuel line firmly to the inner hose attachment.

Attach the yellow fuel line firmly to the outer hose attachment.

The black hose with the white attachment should slide into the indicated area.

(Image description: Three images show the correct placement of the black and yellow fuel lines onto the carburetor attachments. A circled area highlights the specific connection point for the black hose.)

Step 5 - Replacing purge bulb

Loosen the two screws holding the carburetor using a stardrive bit, turning counter-clockwise.

(Note: The images show the air filter housing removed for better visibility; this step is not necessary for the actual replacement.)

Remove the four screws holding the old purge bulb by turning counter-clockwise.

Remove the plate holding the purge bulb.

The old purge bulb should come out easily. Replace it with the new one.

(Image description: Three images demonstrate loosening carburetor screws, removing screws from the old purge bulb, and removing the retaining plate.)

Step 6 - Replacing vent cap gasket

Unscrew and remove the gas cap. The plastic piece that keeps it attached will bend and allow it to pull out of the tank.

Use a screwdriver or needle-nose pliers to pry out the old gasket.

Replace with the new gasket, using your fingers to position it correctly.

(Image description: Two images show the removal of the gas cap and the process of prying out the old vent cap gasket.)

Reassembly

To reassemble your device, follow these instructions in reverse order.