While you wait for answers, we may have found some information which could help you.
Click here for Change Pull Cord
How do I replace the primer bulb on my Troy Built String Trimmer?
why wont my weed eater run when i give it gas ?
Primer Bulb for Troy-Bilt TB475SS?
Change trimmer head on Troy Bilt TB465SS?
how do i replace starter rope on Troy Bilt TB20CS gas trimmer?
fuel lines replacement for Z825sd weed eater?