The carburetor on a gas-powered string trimmer occasionally needs to be eliminated for cleaning or maybe to make adjustments. Problems with the carburetor become evident once the engine stops or sputters. Portions of it may become clogged with old fuel or residue, or the adjustment points may be out of sync. A carburetor may be removed, cleaned, adjusted or repaired with a kit.In some instances, it may have to be replaced entirely.
Drain any gas left in the tank into a gas can. Unscrew and eliminate the backpack cover. Usually several screws hold it in place at the front and back of the machine. Remove the air filter cover and slip the filter from its matching. Unscrew the screws beneath the filter, and get rid of the remaining part of the filtration system and any plates attached between the carburetor.
Pull the gas lines from the carburetor. The trimmer should have two lines running from two sides of the tank. In some instances, the primer bulb is attached right to the carburetor. If your version is one of these, unscrew and remove the primer bulb. Pull the linkage to the throttle off also.
Slide the carburetor out of its pins. Some models have a couple screws holding it in place. To disassemble the carburetor for cleaning, simply unscrew the outer panels, being careful to store all the tiny parts in a secure place. Produce a sketch of those parts as you disassemble to make it easier to set it back together later.