Question about Troy Bilt Tb70ss Gas Trimmer
My weed eater ran fine last week and now I cant get it to start. The primer bulb gets stuck when I push it in.
Sounds like the carb or gasket around the carb is leaking allowing the pressure to blow by when you press the primer bulb. If its not air tight it will not pop back out. Check your carb and surrounding gaskets and check for a leak.
Posted on Jun 28, 2009
Will the unit start if choked? This will help narrow down the choice from probable faults. This could be a stuck check valve in the primer flange, a pinched line in the fuel tank, or a stuck inlet needle. Carburetor gaskets have nothing to do with a collapsed primer bulb. This is caused by a restriction somewhere in the incoming fuel circuits that feed the bulb. This means that your low and high check valves are sealing, and they should still function properly (some are not available from Zama or Walbro, but others are, some are very difficult to remove with a drill bit). If they were failing, air would be drawn into the bulb. It sounds this is a carburetor that qualifies for service.
Posted on Apr 22, 2014
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Posted on Jan 02, 2017
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