Question about Garden
Try cleaning the gas filter. It's inside the gas tank. Lay the saw on its side with the gas tank cap facing up. Remove the cap. Use a piece of wire to "fish" the filter and rubber gas line out of the hole. You should be able to remove it, give it a good cleaning, and put it back on. Provided the carb isn't plugged up it should work fine.
Posted on Apr 26, 2015
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Posted on Jan 02, 2017
SOURCE: primer bulb hook up
Two lines come from the tank--one with a filter that goes to the carburetor, another with no filter which goes to the output side of the primer bulb and passes pumped fuel back to the tank. Connect only the line with the filter on the end to the primer and pump it. If nothing happens, switch the line to the other port on the bulb and pump again. With fuel mix in the tank, one of these two ports should pull fuel into the bulb. When correct, put the filter-less line on the other port of the bulb. Remove the filtered line from the bulb and hook it to the upper fuel connection on the carburetor. Use another length of fuel line to connect the now open port of the bulb to the other port on the carburetor. If the connections on the carburetor are correct, fuel will fill the bulb after a few pumps. If nothing happens, reverse the two connections at the carburetor and try to pump again. You should see fuel enter the bulb with only the correct connections at the carburetor. Usually, these connections are unidentified and must be found by trial and error. This is also a good reason for replacing only one line at a time! When fuel pumps into the bulb, attempt to start--with luck, the engine will run. Once the engine runs normally, trim the line lengths so that you have no excess line, but don't have sharp bends in any line either--they will eventually kink! Hope this helps!
Posted on May 05, 2010
You may be overfilling the tank somewhat so that expanding fuel (from engine heat) is being pushed out of the vent. Check the fuel filter for plugging and all of the fuel lines for any rot, splitting, or other damage. The primer bulb is supposed to pull fuel from the fuel filter, then through the carburetor and on to the primer which should push the excess back into the tank through another line. If the above does not allow the primer to pump fuel, then dismantle the carburetor, clean with carburetor spray cleaner, and rekit it. Go to: http://www.drystacked.com for a 12 page article on Walbro brand carburetors--theory and troubleshooting. This information applies to most brands of carburetor. Hope this gets you running!
Posted on May 31, 2010
The lines should be connected to push fuel into the carburetor. The output (overflow) of the carb is routed back into the tank. So, two lines in the tank, one is an overflow (return) and the other is the suction. On the primer one line from the tank and the other to the carb. Connect so as to "push" fuel into the carb when the primer bulb is pushed.
Posted on Jun 16, 2010
I just replaced the primer bulb on my Echo cs-305.
I didn't find the parts list too helpful.
It's easy. All you have to do is remove the air filter and look at the existing bulb from the bottom-- you can reach in with a screwdriver and pop the 'feet' holding it in place off their catches. When I put the new one in, I attached the tubes using a pair of needlenose pliers.
Posted on Mar 05, 2012
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