Briggs & Stratton 21A900 137Dz281165S, 192, 216 691840, 202, 222 694042, 137A, 227 691374, 209

Page 13

 

 

 

 

 

 

 

 

21A900

REF.

PART

 

REF.

PART

 

REF.

PART

 

NO.

NO.

DESCRIPTION

NO.

NO.

DESCRIPTION

NO.

NO.

DESCRIPTION

137Dz281165S

Gasket−Float Bowl

192

691986

Adjuster−Rocker Arm

216

691840

Link−Choke

 

 

(Walbro)

202

691841

Link−Mechanical

222

694042

Bracket−Control

137A

Dz698781

Gasket−Float Bowl

 

 

Governor

227

691374

Lever−Governor

 

 

(Nikki)

209

792813

Spring−Governor

 

 

Control

141

790902

Kit−Choke Shaft

 

 

(Brown)

232

691842

Spring−Governor Link

 

 

(Walbro)

 

 

Used on Type No(s).

238

691843

Cap−Valve

141A

698778

Kit−Choke Shaft

 

 

0115, 0117, 0119,

239

491657S

Switch−Oil Pressure

 

 

(Nikki)

 

 

0120, 0121, 0122,

 

 

Used on Type No(s).

141B

790903

Kit−Choke Shaft

 

 

0124, 0127, 0128,

 

 

0115, 0188.

 

 

(Walbro)

 

 

0129, 0131, 0134,

240

298090S

Filter−Fuel

 

 

Used on Type No(s).

 

 

0136, 0138, 0139,

 

 

(Red, 150 Microns)

 

 

0142, 0166.

 

 

0140, 0141, 0142,

 

 

Used on Type No(s).

141C

793386

Kit−Choke Shaft

 

 

0143, 0144, 0145,

 

 

0129.

 

 

(Manual Choke)

 

 

0147, 0149, 0153,

 

 

−−−−−− Note −−−−−−

142

D790025

Nozzle−Carburetor

 

 

0154, 0159, 0161,

 

 

394358S Filter−Fuel

 

 

(Standard)(Walbro)

 

 

0162, 0164, 0165,

 

 

(White, 75 Microns)

143

790028

Nozzle−Carburetor

 

 

0166, 0168, 0170,

 

 

Used on Type No(s).

 

 

(High Altitude)(Walbro)

 

 

0172, 0173, 0176,

 

 

0101, 0104, 0105,

146

691639

Key−Timing

 

 

0178, 0180, 0183,

 

 

0113, 0117, 0119,

187

791805

Line−Fuel

 

 

0184, 0185, 0186,

 

 

0120, 0123, 0124,

 

 

(Formed)(10−1/4

 

 

0187, 0188, 0189,

 

 

0125, 0127, 0128,

 

 

Inches Long)(Cut to

 

 

0190, 0191, 0192,

 

 

0131, 0134, 0136,

 

 

Required Length)

 

 

0197, 0198, 0199.

 

 

0138, 0146, 0152,

187A

791806

Line−Fuel

 

 

−−−−−− Note −−−−−−

 

 

0155, 0156, 0158,

 

 

(Formed)(21” Long)

 

 

792602 Spring−

 

 

0167, 0168, 0169,

 

 

(Cut To Required

 

 

Governor

 

 

0171, 0172, 0176,

 

 

Length)

 

 

(Red)

 

 

0180, 0183, 0184,

187B

791766

Line−Fuel

 

 

Used on Type No(s).

 

 

0186, 0192, 0198.

 

 

(15” Long)(Cut To

 

 

0101, 0113, 0133,

240A

691035

Filter−Fuel

 

 

Required Length)

 

 

0156, 0157, 0179,

 

 

(Clear, 40 Microns)

187C

791745

Line−Fuel

 

 

0195.

 

 

Used on Type No(s).

 

 

(23 Inches Long)(Cut

 

 

692208 Spring−

 

 

0115, 0121, 0122,

 

 

To Required Length)

 

 

Governor

 

 

0133, 0137, 0139,

188

691693

Screw

 

 

(Green)

 

 

0140, 0141, 0142,

 

 

(Control Bracket)

 

 

Used on Type No(s).

 

 

0143, 0144, 0145,

 

 

 

 

 

0104, 0105, 0123,

 

 

0147, 0149, 0150,

 

 

 

 

 

0125, 0137, 0146,

 

 

0151, 0153, 0154,

 

 

 

 

 

0152, 0155, 0158,

 

 

0157, 0159, 0161,

 

 

 

 

 

0167, 0169.

 

 

0162, 0164, 0165,

 

 

 

 

 

691795 Spring−

 

 

0166, 0170, 0173,

 

 

 

 

 

Governor

 

 

0178, 0179, 0185,

 

 

 

 

 

(Yellow)

 

 

0187, 0188, 0189,

 

 

 

 

 

Used on Type No(s).

 

 

0190, 0191, 0195,

 

 

 

 

 

0171.

 

 

0197, 0199.

 

 

 

 

 

690576 Spring−

261

697176

Screw

 

 

 

 

 

Governor

 

 

(Control Slide)

 

 

 

 

 

(Gold)

 

 

Used on Type No(s).

 

 

 

 

 

Used on Type No(s).

 

 

0139, 0140, 0142,

 

 

 

 

 

0150, 0151.

 

 

0166.

 

 

 

 

 

 

 

 

 

KIncluded in Engine Gasket Set−Ref. No. 358.

DIncluded in Carburetor Overhaul Kit−Ref. No. 121 or 121A.

zIncluded in Carburetor Gasket Set−Ref. No. 977 or 977A. Δ Included in Valve Gasket Set−Ref. No. 1095.

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

5069−13

Assemblies include all parts shown in frames.

02/07/2008

13

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Image 13
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Contents Illustrated Parts List With warning labels affixed 847 Valve Gasket SET See text WalbroNikki Emissions Label 1070 1005B 37A 187 187A 601 240 For additional information 23A 693555 697377399265 K391086S121 790031 691003697352 78A 690364192 137Dz281165S216 691840 202311 497608 265 691024387A 808656 267 794904523 699908 474C 696457584 794682 524757 676 393761843 697158 758968 697420 3986611040 698368 6919561270 697156 1263 6971241264 697104 −−−−−− 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.
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