Breathe easier with this genuine OEM air filter, part number 951-10298, built for select Lawn Mower, Small Engine, Tiller, String Trimmer, Leaf Blower, Edger, Log Splitter, or Wood Chipper models from Bolens, Craftsman, Huskee, MasterCut, MTD, Troy-Bilt, Yard Machines, Yard-Man, Murray, Cub Cadet, or Husky.
If the string trimmer engine runs poorly the air filter might be clogged. Remove the air filter and inspect. If restricted replace with the correct filter.