The Troy-Bilt snowblower features a small Briggs & Stratton engine, like many of its snowblower and mower counterparts. While an extremely popular small engine choice within the industry, Briggs & Stratton carburetors can still suffer from problems with sputtering and general failure that may require adjustments or cleaning before the carburetor will run properly once again. You can adjust your Troy-Bilt snowblower and have the machine running in an optimal state once again even without the aid of manufacturer repairs. You can adjust the snowblower even if you have no previous experience.
Turn on the Troy-Bilt snowblower and listen to the sounds it emits. Check to ensure that the engine runs smoothly and consistently. If it is not, it will be producing a sputtering sound that is harsh and inconsistent. This indicates a problem with air intake that requires carburetor adjustment.
Allow the Troy-Bilt snowblower to continue to run as you make your adjustments. Locate the carburetor bowl, which is a bowl-shaped part located about halfway down the right side of the Briggs & Stratton engine block. Near the bottom of the carburetor bowl is a lone, small needle valve. This valve controls air intake into the carburetor. Turn the valve all the way to the left until it will not budge.
Allow the Troy-Bilt snowblower to keep running. Listen carefully as you turn the needle valve back to the right one-quarter turn. This may cause the sputtering to stop and the carburetor to even out, resulting in the proper, efficient operation of the engine. If it does not, continue making gradual, quarter turns to the right of the needle valve until the sputtering ceases.
Power off the Troy-Bilt snowblower if sputtering persists or the engine starts but dies out. Allow the engine time to cool.
Place a dish directly under the carburetor bowl. Loosen and remove the nut on the underside of the bowl with a socket wrench. Allow the fuel and liquid to drain out of the Troy-Bilt's bowl into the dish. Do not proceed until this draining finishes.
Remove the bolts holding the bowl in place, using your socket wrench. Twist the carburetor bowl off and set it aside.
Scrub the Troy-Bilt snowblower's bowl nut with carburetor cleaning mixture and a brush.
Wipe out the inside of the Troy-Bilt snowblower's carburetor bowl with the cleaning mixture and a cloth.
Reassemble the carburetor bowl by following your steps in reverse. This should cause the sputtering to cease.