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The Daily Insight

How do you adjust the governor spring?

Author

Daniel Foster

Published Jun 04, 2026

How do you adjust the governor spring?

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.

What position should the speed control be in when adjusting the governor?

Rotate governor lever clockwise so that throttle is in full wide open position. Throttle stop must contact cast stop on the carburetor.

How do you adjust the governor on a Briggs & Stratton engine?

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 are the two major types of governor?

The Governors are mainly divided into two types i.e Centrifugal Governor and Inertia Governor. These are further divided into following types according to their design.

How do you change the spring tension on a lawn boy?

Turning it clockwise increases tension (and RPMs), while turning it counterclockwise decreases tension. You have to put some pressure on the knob to get it to turn. When doing this, be careful not to break the spring—it’s very fragile. Needless to say, adjusting the governor’s spring tension should only be done when the engine is OFF and COLD.

Is there a way to adjust the governor spring?

Even after reading the manual regarding the governor spring, I fail to see how to adjust the collar/spring clockwise ( tighter) to increase the RPM. I can touch the white collar and see the gear teeth on it. I disconnected the spring several times when I had the carb off.

Can a governor spring be replaced on a Briggs and Stratton riding mower?

This video provides step-by-step instructions for replacing the governor spring on Briggs and Stratton small engines, commonly found in Lawn Boy lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators.

What should I do about the governor on my lawn tractor?

Now that the carb is back on and the engine is running, I can se that the air vane / spring governor is being overpowered by the flywheel breeze and results in very low RPM . What steps are required to adjust the collar a few clicks tighter/ more spring tension? Does the entire carb come off again to do an adjustment?

How do you adjust the speed of a lawn boy?

To adjust the air vane governor’s spring tension (and, thus, engine RPMs), you turn the white, knurled knob. Turning it clockwise increases tension (and RPMs), while turning it counterclockwise decreases tension. You have to put some pressure on the knob to get it to turn. When doing this, be careful not to break the spring—it’s very fragile.

Even after reading the manual regarding the governor spring, I fail to see how to adjust the collar/spring clockwise ( tighter) to increase the RPM. I can touch the white collar and see the gear teeth on it. I disconnected the spring several times when I had the carb off.

When to change the spring on a lawn boy?

Springs eventually break or overstretch and stop increasing the throttle as they did when they were new. If you push the throttle lever to its highest level and you can still open the throttle plate further by hand, the throttle spring needs replacing.

Now that the carb is back on and the engine is running, I can se that the air vane / spring governor is being overpowered by the flywheel breeze and results in very low RPM . What steps are required to adjust the collar a few clicks tighter/ more spring tension? Does the entire carb come off again to do an adjustment?