DescriptionThis video provides step-by-step instructions for replacing the air vane spring on Briggs and Stratton small engines, commonly found in Toro, John Deere, and Lawn Boy lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators. The most common reason for replacing the air vane spring is if it is broken, which can cause the engine to not start or to only start after too many pulls on the recoil starter.
All of the information in this spring replacement video is applicable to the following brands: Briggs & Stratton, Toro, John Deere, Lawn Boy
Tools used: Phillips head screwdriver, pliers
Step-By-Step Instructions1
Before you replace the air vane spring on your engine…
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…first make sure the engine has cooled.
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Next, you should remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
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Now use a phillips-head screwdriver to unthread the mounting screws securing the engine cover.
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Release the starter rope from the retainer…
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…and pull the cover off.
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If still intact, use pliers to detach the old spring from the air vane and the bracket.
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Install the new air vane spring…
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…by first hooking it onto the bracket…
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…then attach it to the air vane.
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Realign the engine cover.
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Rethread and tighten the mounting screws.
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Depress the bail arm, extend the starter rope and secure it in the retainer.
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With the repair completed…
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…reattach the wire and boot to the spark plug…
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…and your engine should be ready for use.