Einleitung
This guide shows how to rebuild a primer style carburetor on a Briggs and Stratton quantum engine. The guide is applicable to many different models and brands of mowers.
This engine can be found on push mowers, log splitters, tillers, leaf vacs, leaf blowers, tractors, and more. It is applicable to 4.5-8 horsepower engines. A carburetor rebuild is required after fuel is left in a mower over a long period of time or water has gotten into the fuel.
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Remove the air filter cover and air filter. This is done by removing the screw at the top of the filter housing.
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Remove the fuel line clamp with pliers. Crimp the line with locking pliers, or bend to 180 degrees to crimp the fuel line.
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To remove the carb, use a 3/8 socket with extension and ratchet.
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Turn the carb 90 degrees, and pull off of the Z bend in the carb linkage.
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After the removal of the carb. the next step is to remove the carb bowl. This requires a 1/2 socket, and ratchet.
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After removal, empty the leftover fuel into a container.
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Spray the carb out with carb cleaner. After sprayng the carb off, remove the float pin. This will result in the float and needle being able to be pulled off as a whole.
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These are the three major spots to spray out. If carb spray does not pass through, take a small piece of wire, and poke it through all the passages. Then spray out with carb cleaner again.
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Finally, after all parts are clean and sprayed off, lay them out to ensure you are ready to reassemble.
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To reassemble your device, follow these instructions in reverse order.
