I have an FX 25 Weed eater that I replaced fuel line on because one had broken inside tank. After replacement of lines wouldn't start, runs when I put stater fluid in plug hole as long as fuel lasts then dies ,
I then completely tore down carb & rebuilt it with Walbro kit & replaced primer bulb new fuel filter everything fuel related but still will not start , primer bulb when pushed will not release, swapped fuel lines thought maybe wrong but bubbles in tank. took apart several times to make sure something is not installed wrong by Walbro Illustration everything looks fine. Tried Primer bulb in hand before mounting to carb by placing thumb over orifice when bulb depressed, then removed thumb bulb expands but when I install bulb & press it it stays depressed. Why is something so simple so hard to get working. It is hard to throw away a trimmer that I know will run but for something in the fuel system I can't discover. Any Hints are gratefully appreciated.
I had the same problem but with my Eager Beaver 282 trimmer. I also had a Walbro carb that I rebuilt and fuel lines that I replaced. I checked the on-line manual to make sure the carb and lines were in properly, just like you did. The advice I received was to make sure my lines were not pinched, especially the one that's attached to the fuel pickup/filter in the tank. When I checked that line and was able to let it flow, my trimmer worked.
Let me know how it goes for you.
Copperzad
September 2009
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