Primer Cover

Remove the old fuel line grommet along with the fuel return line, fuel line and vent line. Make a diagram of where they hooked up to. Remove the fuel filter from the fuel line and remove the fuel tank vent from the vent line. Install the three lines into the grommet leaving the same amount of line coming in and out of the grommet as was on the old one. Install the fuel and tank vent on their lines. Insert the fuel filter into the tank, then put some oil on the grommet and install it on the tank. Place the fuel and return lines back on the carburetor. And place the fuel tank vent on the vent line Remove the screws from the primer cover and remove the old primer and and cover install the new primer, then the new cover. Remove the air filter cover and remove the old air filter, then place the new one in and replace the filter cover. Remove the old spark plug, gap the new one at 0.026 and torque it to 130 in. lb. Now you're done, get to work

Started by emptying the fuel, then took off the cover, and removed the tank. Ran the new lines into the tank, and connected them to the carb, then reassembled everything.

Removed two screws holding cover and primer. Replaced with new ones. Very straight forward replacement.

Simple ran it dry
Removed filter
Removed carb
Removed carb seals
Removed bulb primer
Cleaned
Rebuilt in reverse order

Removed the screws and installed the new bulb. Reinstalled the screws.

Removed the screws from the purge bulb cover
Removed the old purge bulb from the cover
Installed the new purge bulb in the new bulb cover
Screwed the cover onto the carburetor

1. Removed the filter cover and discarded the filter and replaced it with the new filter.
2. Removed the Primer cover and Primer and replaced it with a new Primer cover and Primer.

1. Removed the old primer & primer cover
2. Cleaned around the area.
3. Installed the new parts.
Job done! All told, less than 15 minutes.

1. Emptied fuel.
2. Removed engine cover - four screws.
3. Removed fuel line and fuel return line along with grommet.
4. Removed fuel tank vent and grommet.
5. Disconnected fuel line and fuel return line from carb.
6. Replaced everything with new components.
7. Fueled up and started the machine.
8. Spent ~$60 and saved ~$600 over buying a comparable new machine.

Echo GT-2400 grass trimmer.
A trimmer I've used for well over 30 years in my yard.. This Spring upon its start up . It ran lousy. I first removed the primer cover and primer. I put them back on after I worked on the carburetor. I did the same thing with the cap and gasket.
A carb re-build can be tricky to accomplish. So here's how I made it easy for> me.
Took pix's with my cell through-out its dismantling. Carb cleaner purchased for internal passage cleaning. Then blew out the sprayed passages with compressed air. The carburetors reassembly was a piece of cake.{all my cell pix's did garner a great resolve} Reinstalled using all new internal parts from E replacement parts. (the only internet business to buy small engine parts from) Re-set its air/ fuel mixture needles to Echo specs. Trimmer fired right up. Tweaked its low & high speed needle's a second time. Re-Set its Idle screw a tad too. GT-2400 ran as good as new. What a difference in its power curve . Trimmer went from being a throw away to a heirloom. Immediately gave the trimmer to my daughter to use in her yard and went and bought me a brand new Echo curve shaft trimmer today. Don't know if the new echo will run as good as its predecessor. My new echo has a non-adjustable carb. I just may have made a mistake in giving my old yard pal away. Oh well . I know my daughter will enjoy her daddy's sweet running trimmer.