DescriptionThis video provides step-by-step instructions for replacing the pre-cleaner key on Briggs and Stratton small engines, commonly found in lawn mowers, riding tractors, zero-turn radius mowers, wheeled edgers, pressure washers, and generators. The most common reasons for replacing the pre-cleaner are when the engine is hard to start, or as preventive maintenance whenever you replace the air filter or notice the pre-cleaner is dirty or damaged in any way.
All the information in this pre-cleaner replacement video is applicable to the following brands: Briggs & Stratton, John Deere, Lawn Boy, Toro
Tools used: flathead screwdriver
Step-By-Step Instructions1
Before you begin the replacement, make sure the engine has cooled and remove the wire and boot from the spark plug.
2
Your first step is to loosen the screw securing the air filter cover and pull the cover off.
3
Next, pull out the air filter and remove the old pre-cleaner if your engine is equipped with one.
4
Prepare to install the new pre-cleaner by first using a rag to clean off the filter cover.
5
With the cover clean, position the new pre-cleaner in the cover with the arrows pointing upward.
6
Place the air filter on top with the paper element facing the pre-cleaner.
7
Insert the cover’s tabs into the slots, rotate upward and tighten the screw.
8
You can now reattach the spark plug wire and boot.