Troy-Bilt TB425CS Grass Trimmer. The purge/primer bulb does not pull fuel from the fuel tank.... There is no visible fuel in primer bulb when the bulb is pushed.
You may have a fuel line, fuel filter problem. I recommend inspecting and/or replacing old fuel lines as they get old, brittle, flaky, and develop pin hole leaks in the fuel tank and around the carburetor fittings. If you choose not to replace them, problems will surface down the road. Sometimes the check valves in the carburetor that open and close to keep the fuel moving in the proper direction malfunction. They can sometimes be cleared with a lubricant such as WD-40 but real strong solvent tends to ruin them. A primer bulb on the carburetor is easier to service as you can remove the primer bulb base assembly (mounts on carburetor with screws) and spray WD 40 liberally into the pump area. A remote bulb is a little trickier, as you have to either inject the lubricant spray into the fuel lines and attempt to get the bulb to draw it to the carb to free check valves inside. This is if you don't want to remove the lines and service the carburetor. Also, a new bulb may be needed. Thet deteriorate the way the fuel lines do. They are rather inexpensive and you can get kits that include the new fuel lines, filter and bulb all together. Some of these parts are available in the garden center at Home Depot and many are on Ebay. Post back if further instructions are needed.
Apr 28, 2011 |
Craftsman 25cc Gas Line Trimmer