The Briggs and Stratton Quantum is a newer vertical orientation lawn-mower motor. Available in the five- to six-horsepower range, the Quantum is equipped with a tank-mounted carburetor. Cleaning this type of carburetor is quite simple compared to older inline style carburetors as you no longer have to deal with a float bowl. Cleaning the Briggs Quantum carburetor is a simple process for any home mechanic.
Things You'll Need
- Socket set
- Carburetor spray cleaner
Pull the spark-plug wire loose from the plug to ensure there is no spark.
Locate the carburetor, which is a silver oblong attachment to the right side of the motor. Use the screwdriver to remove the two mounting bolts holding the outside shroud on the carburetor.
Pull the shroud off and use the socket wrench to loosen the mounting studs holding the throttle assembly in the left side of the carburetor. Slide the throttle assembly far enough away from the carburetor that you can can spray some of the carburetor cleaner into the throttle body and the other working parts.
Spray the throttle body and internals of the carburetor liberally and allow them to sit for a few minutes before repeating two to three times.
Slide the throttle assembly back into place and tighten down the mounting studs with the socket wrench. Slide the carburetor shroud back on and reattach it with the two mounting bolts and the screwdriver.
Tips & Warnings
- You can lay a rag underneath the carburetor on the lawn-mower deck to catch the dirt and grime, and prevent it from landing on your mower deck, where it could damage the paint.
How to Troubleshoot a Briggs & Stratton Quantum 6.5 HP
Briggs & Stratton is a small-engine manufacturer that provides engines to a number of lawnmower manufacturers for use in their yard machines....
How to Rebuild a Briggs & Stratton 12 HP Carburetor
Briggs & Stratton owns the Snapper and Simplicity lawnmower brands and also produces small engines with carburetors for a wide range of...
How to Troubleshoot a Briggs & Stratton Engine
Fuel, fire and air are the main components for operation of any combustion engine. When troubleshooting a Briggs & Stratton engine, the...
How to Clean a Briggs Carburetor
When your Briggs & Stratton engine won't start on a small machine such as a mower or generator but there is plenty...
Briggs Carburetor Cleaning Instructions
If your Briggs & Stratton engine on your small machine, such as a tiller, mower or generator, won't start or dies right...
Briggs & Stratton 4.5 HP Oil Change Instructions
Briggs and Stratton has been in business since 1908 and is currently the world's largest producer of small, air-cooled gasoline engines. The...
How to Clean a Briggs Intek Carburetor
When a Briggs & Stratton engine doesn't start easily or if the engine dies as though it is running out of gas,...
How to Set a Briggs & Stratton Carburetor
Briggs & Stratton is a small-engine manufacturer whose engines are commonly found in lawn and garden equipment, such as lawn mowers, snow...
How to Fix Briggs & Stratton Float Carburetor
Briggs & Stratton manufactures small engines for lawnmowers and landscaping equipment. Fuel flows into a bowl in a float carburetor. The float...
The Internal Parts of a 6.5 HP Briggs & Stratton Engine
Built on the same principles as any gasoline-powered engine, a 6.5 horsepower Briggs and Stratton engine sits atop a push-behind lawn mower...