The Featherlite weed eater needs to be cleaned and serviced on a regular basis. As the trimmer ages, the carburetor will also eventually need to be cleaned and serviced. If you are having trouble starting or keeping the Featherlite running, the problem could lie in a dirty, clogged carburetor. If you have stored your weed eater improperly with gas still in the tank and fuel lines, you will also probably need to service the carburetor.
Drain out all of the fuel remaining in the gas tank. Pour it into an approved fuel container. Start the trimmer and let it run until it chokes off. Rinse the fuel tank out with a little warm, soapy water
Remove the air filter cover's screws. Pull the air filter off of its mounting plate. Wash the filter in the warm, soapy water. Rinse the filter off with cool water. Allow it to dry thoroughly before using it again. Replace the filter when it's too dirty to clean.
Disconnect the spark plug boot and remove the spark plug. Set the power washer to about half power and spray down the entire engine housing, shaft and trimmer head. Do not use soap and make sure the choke is closed. Let the weed eater dry thoroughly before using them again.
Refill the weed eater with freshly mixed gas. Use a mix of 40:1 gas to oil. Replace spark plug with a new one and install back into the engine. Put the boot back on the plug.
Leave the air filter cover and air filter off. Set the choke to its half-open position for cold starts. Turn the ignition switch to "On." Start the weed eater. As soon as the engine pops, spray a one to two second blast of carburetor cleaner into the open neck of the carburetor.
Let the weed eater idle for a few minutes and let the carburetor cleaner break up the gunk inside the carburetor. Run it full throttle until all of the white, dirty smoke has burnt off. Repeat cleaning once more if necessary. If the engine died when you sprayed the cleaner into the carburetor you will need to service the carburetor.