Odds are, if the engine ever needs work, the parts alone will cost more than a replacement new trimmer will !!! I recently posted about the broken choke pivot for my dad in laws Homelite, the choke pivot shaft is not available as a part, instead one must pay $90 for a complete new carb assembly plus shipping...and you can buy a brand new, comparable sized and powered trimmer for $75 with tax. Go figger !!!!