Primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.
Primer bulb (or purge bulb) assembly. The primer bulb draws fuel into the carburetor to make the engine easier to start. The short port on the primer bulb is the inlet. The longer port is the outlet back to the fuel tank.
Walbro primer bulb. The primer bulb draws additional fuel into the carburetor to make the engine easier to start. If the primer bulb is leaking, replace it.
Small engine carburetor gasket and diaphragm kit. If the engine runs rough, then the carburetor may need to be cleaned, rebuilt, or replaced.
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