Briggs & Stratton 21A900 service manual With warning labels affixed

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21A900

1058 OPERATOR’S MANUAL

1319 WARNING LABEL

REQUIRED when replacing parts

with warning labels affixed.

306

307

1

2

3

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

10

 

 

 

 

 

584

 

 

 

 

 

9

850

 

 

 

 

 

 

 

 

 

1264

 

 

 

 

 

1263

 

 

 

 

552

 

 

 

 

 

691

 

 

718

 

4

4A

 

 

 

 

 

 

 

 

12

12

1017

 

22

15

20

20

415

 

 

1024

1024A

1027

 

 

 

239

965

943

 

 

750

 

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

5069−2

Assemblies include all 2parts shown in frames.

06/17/2008

Image 2
Contents Illustrated Parts List With warning labels affixed 847 Valve Gasket SET Walbro See textNikki Emissions Label 1070 1005B 37A 187 187A 601 240 For additional information 399265 69737723A 693555 K391086S697352 691003121 790031 78A 690364216 691840 137Dz281165S192 202387A 808656 265 691024311 497608 267 794904584 794682 474C 696457523 699908 524843 697158 676 393761757 7581040 698368 398661968 697420 6919561264 697104 1263 6971241270 697156 −−−−−− Note −−−−−− 1319 794467

21A900 specifications

Briggs & Stratton is a name synonymous with reliability and innovation in the small engine industry. Among its varied product lineup, the Briggs & Stratton 21A900 stands out for its performance and efficiency, making it an excellent choice for both homeowners and professionals.

The Briggs & Stratton 21A900 is a versatile engine specifically designed for lawn mowers and other outdoor power equipment. One of its hallmark features is its compact design, making it lightweight while still delivering robust performance. This makes it an ideal choice for residential lawn care, as well as for commercial landscaping operations.

One of the key technologies employed in the 21A900 is the Overhead Valve (OHV) design. This technology enhances engine efficiency by placing the valves in the cylinder head, allowing for better airflow and improved combustion. This results in increased power output and fuel efficiency, making it eco-friendlier compared to older engine designs.

In addition, the engine is equipped with a reliable starter mechanism, which enables easy starts even in cold conditions. The ReadyStart® system is a notable feature that eliminates the need for manual priming or choking, ensuring that users can get to work with minimal fuss.

The 21A900 also boasts a governor system designed to maintain engine speed under varying loads. This is particularly beneficial for lawn mowers, as it allows the engine to adjust power output automatically when encountering tougher grass or uneven terrain. As a result, users can enjoy consistent performance without constantly adjusting the throttle.

Durability is another significant characteristic of the 21A900. Briggs & Stratton engines are known for their rugged construction and the 21A900 is no exception. Built with high-quality materials, it promises long-lasting performance and reduced maintenance issues, which translates to lower total cost of ownership for users.

Maintenance is made easier with the inclusion of features such as a top-mounted oil fill and a convenient oil drain. This user-friendly design simplifies routine oil checks and changes, ensuring that the engine stays in top shape.

In summary, the Briggs & Stratton 21A900 engine combines advanced technologies, user-friendly features, and durable construction to deliver a powerful and efficient solution for outdoor power equipment. Whether used in a residential or commercial setting, the 21A900 ensures reliable performance for all lawn care needs. This engine exemplifies the commitment of Briggs & Stratton to quality and innovation, making it a trusted choice for users around the world.