Walbro primer bulb appears to work, but no fuel is going to carb
I have a Walbro carburetor and the primer bulb appears to work, as it is drawing fuel into the bulb but no fuel is going to the carburetor. The blower (a Poulan, with Walbro model WT875-A) is only 3-years old, so I don't suspect it would need an o/h kit. I have taken off the bulb and blown compressed air through the top orifice and the two lines going into the fuel tank, as well as cleaned the fuel filter to no effect. Any ideas on this issue?