Often asked: How To Connect Springs On A Briggs & Stratton Lawn Mower Carburetor?

Where does the spring go on carburetor?

The throttle return spring is located on the side of the carburetor. Step 2: Remove the air cleaner assembly.

What does choke linkage do?

A choke valve/cable is designed to restrict the flow of air in the carburettor of an engine. This helps enrich the fuel-air mixture, improving the ability to start an engine in low temperature conditions. Simply put, the choke is about making more fuel available for the engine to use.

What does the spring on a carburetor do?

As indicated above, the job of the throttle return springs is to “return” the throttle to a closed position. When the spring is damaged, the throttle body will remain open until either the pedal is manually drawn back by a driver’s foot or gravity takes over and helps to close the throttle.

What causes a lawn mower engine to rev up and down?

A lawnmower that hunts and surges may be experiencing something as simple as an airflow issue. If the air that the engine requires to run is blocked, especially sporadically, it can cause the engine to slow down. When the blockage moves or clears, the engine may suddenly rev up in response.

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Where does the governor spring go on a lawn mower?

The governor primary and secondary springs both clip to the loop in the governor throttle arm linkage. The throttle lever is located on the throttle lever control bracket in front of the carburetor. Unclip the secondary governor spring end from the loop in the governor throttle arm linkage by hand.

How do you adjust the governor spring on a lawn mower?

To adjust the governor, you would loosen the screw on the bottom of the governor arm and push the governor arm so the throttle is wide open. Then you would turn the bottom “clip” (which is connected to the governor shaft) counter clockwise. This will set the governor shaft on top of the governor spool.

What does the governor spring do on a small engine?

The governor spring wants to open the throttle and the governor tries to close the throttle. The interaction of the governor spring and mechanical governor holds the throttle at the desired engine rpms based upon a force balance and the load / operating conditions.

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