Hi All- Thanks in advance. I have a Stihl FS-55 trimmer with the original Zama C1Q (junk) carb. Done everything to the trimmer but it still has no power and will die when you open the throttle. Will a Walbro WT-264 work on this without mods? If not, anyone know for sure what Walbro carb will work? Background: Four years young, exhaust port clean, spark arrestor screen removed, carb rebuild kit installed, fuel filter and lines new. Dealer wants $75.00 for a new Zama carb. Carb is non adjustable-Chinese junk PN C1Q-S53, 009A.