Open the snowblower's engine cover and locate the carburetor.
Detach the cooling shroud from the carburetor with a screwdriver.
Slightly loosen the governor's mounting screws with a screwdriver. Do not remove the screws from the governor module.
Place a gap gauge, measuring between 0.008 and 0.012 inches thick, behind one of the governor's module legs. The gap between the leg and the adjacent flywheel magnet should match the gap gauge. Adjust the leg's height, if the gap is too small or large, by turning the adjustment screw with a screwdriver.
Repeat the above step for each governor module leg. Each Toro snowblower model differs in the leg quantity. Verify the quantity of legs by consulting the specific owner's manual.
Verify the gap gauge's accuracy with a micrometer for each leg. Make sure that the gap falls within the acceptable size for the best governor performance.
Reassemble the parts by reversing Steps One through Three, and test the Toro snowblower's performance.