Service Air Cleaner

Your engine will not run properly and may be damaged if you run it with a dirty air cleaner.

Clean or replace the foam pre-filter every 25 hours of operation or sooner under dusty or dirty conditions. Clean or replace the paper air filter every 100 hours of operation or yearly, whichever comes first. Clean or replace more often if operating under dusty or dirty conditions.

To service the air cleaner, follow these steps:

1.	Loosen screws (A) and remove air cleaner cover (B).
	E
	D
	C
	B
	A
2.	Carefully remove foam pre-filter (C) and paper filter (D).

3.Wipe clean inside of base (E) and cover thoroughly.

4.To clean or replace the foam pre-filter, wash pre-filter in a solution of household detergent and warm water, then rinse thoroughly. Squeeze dry in a clean cloth.

5.Saturate foam pre-filter in clean engine oil and squeeze in a clean, absorbent cloth to remove all excess oil. DO NOT twist.

IMPORTANT: The engine will smoke during initial start-up if too much oil is left in the pre-filter.

6.Clean paper filter by tapping it gently on a solid surface. If the paper filter is too dirty, replace it with a new one. Dispose of the old filter properly.

7.Insert the foam pre-filter into the air cleaner cover, then the paper filter.

8.Assemble air cleaner cover onto base and tighten screws.

Service Spark Plug

Change the spark plug every 100 hours of operation or once each year, whichever comes first. This will help your engine to start easier and run better.

1.Clean area around spark plug.

2.Remove and inspect spark plug.

3.Check electrode gap with wire feeler gauge and reset spark plug gap to recommended gap if necessary (see Specifications).

4.Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use the recommended replacement spark plug. See Specifications.

5.Install spark plug and tighten firmly.

Service Spark Arrester

The engine exhaust muffler has a spark arrester screen. Inspect and clean the screen every 100 hours of operation or once each year, whichever comes first.

If you use your generator on any forest-covered, brush- covered, or grass-covered unimproved land, it must have a spark arrester. The spark arrester must be maintained in good condition by the owner/operator.

WARNING

Contact with muffler area can result in serious burns.

Exhaust heat/gases can ignite combustibles, structures or damage fuel tank causing a fire.

•DO NOT touch hot parts and AVOID hot exhaust gases.

•Allow equipment to cool before touching.

•Keep at least 5 feet (1.5 m) of clearance on all sides of generator including overhead.

•Code of Federal Regulation (CFR) Title 36 Parks, Forests, and Public Property require equipment powered by an internal combustion engine to have a spark arrester, maintained in effective working order, complying to USDA Forest service standard 5100-1C or later revision. In the State of California a spark arrester is required under section 4442 of the California Public resources code. Other states may have similar laws.

18	BRIGGSandSTRATTON.COM

206405GS specifications

The Briggs & Stratton 206405GS is a powerful and reliable small engine designed for a wide range of applications, particularly in lawn care equipment, generators, and various outdoor power tools. Known for its innovative engineering and robust performance, this engine has garnered attention from both commercial and residential users alike.

One of the standout features of the 206405GS is its advanced overhead valve (OHV) design. This configuration enhances fuel efficiency and improves airflow into the combustion chamber, resulting in better overall performance. The engine's ability to deliver higher torque at lower RPMs makes it ideal for tasks requiring consistent power, such as mowing or tilling.

The Briggs & Stratton 206405GS is equipped with a 206cc displacement, offering a potent power output that can handle challenging yard work. With its easy starting mechanism, users can get their equipment up and running with minimal effort. The inclusion of a recoil starter ensures dependability, even in cold weather conditions.

Another notable characteristic of this engine is its durable construction. It features a heavy-duty, cast iron sleeve for added protection and longevity, allowing it to withstand the rigors of outdoor use. Additionally, the engine’s compact size makes it easy to integrate into various machines, facilitating its widespread adoption in the market.

The 206405GS also benefits from Briggs & Stratton’s exclusive technologies such as ReadyStart®. This system eliminates the need for manual priming, allowing for effortless starting every time. The engine’s built-in oil alert system is another important feature that automatically shuts down the engine in the event of low oil levels, protecting the engine from potential damage.

Maintenance is straightforward, with easy access to the air filter and spark plug, aiding in user convenience and minimizing downtime. The engine's fuel system is optimized for minimal maintenance while still delivering adequate power and efficiency.

In summary, the Briggs & Stratton 206405GS is a well-engineered small engine that combines power, efficiency, and durability. With its advanced features and robust performance, it serves as an ideal solution for various outdoor applications, catering to the needs of homeowners and professionals alike. Its reputation for reliability ensures that it continues to be a popular choice in the competitive market of small engines.