Question about Craftsman Garden
I am under the assumption the primer bulb is atop the carburetor. There are check valves under the bulb in the primer base assembly of these carbs. Sometimes, the valves stick and sometimes they go bad completely. There are very small and for all practical purposes unserviceable, however...you can try this...pull the fuel lines off of the carb and spray WD-40 into the brass inlet and outlet. Remove the primer bulb again and liberally spray some WD onto the top of the primer base assembly...this being done in hopes of freeing up a sticky check valve. If you have extra or old fuel lines, hook them to the carb...inject WD-40 and work the bulb to attempt to move the lubricant back and forth out of the carb. Sometimes this works, sometimes not..if valves are bad. There are replaceable parts and kits for the primer base available on the manufacturers websites. The primer bulb does not have to be completely full of fuel to allow the engine to run, but the base assembly can cause problems in fuel flow to and from the carb and even mimic a flooding condition. Don't use carb cleaner and dont soak the carb in any,. Try this and post back if needed.
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Posted on Sep 11, 2010
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Posted on Jan 02, 2017
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