Briggs & Stratton 21B900 Series Guida all'installazione

in any form or by any means, electronic or mechanical, including photocopying,

recording or by any information storage and retrieval system, without permission

in writing from Briggs & Stratton Corporation.

PRINTED IN U.S.A.

FORM MS−5036−06/18/2008

REPLACES FORM MS−5036−03/04/2008

FILE IN SECT. 2 OF SERVICE MANUAL

21B900

Illustrated Parts List

Model Series

21B900

TYPE NUMBERS

0015 through 0202.

TABLE OF CONTENTS

Air Cleaner 6. . . . . . . . . . . . . . . . . . . . . . . . .

Alternator 9. . . . . . . . . . . . . . . . . . . . . . . . . .

Blower Housing 6. . . . . . . . . . . . . . . . . . . . .

Camshaft 3. . . . . . . . . . . . . . . . . . . . . . . . . . .

Carburetor 5. . . . . . . . . . . . . . . . . . . . . . . . . .

Controls 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crankshaft 3. . . . . . . . . . . . . . . . . . . . . . . . .

Cylinder 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cylinder Head 4. . . . . . . . . . . . . . . . . . . . . .

Electric Starter 7. . . . . . . . . . . . . . . . . . . . . .

Engine Sump 2. . . . . . . . . . . . . . . . . . . . . . .

Fuel Supply 8. . . . . . . . . . . . . . . . . . . . . . . . .

Flywheel 7. . . . . . . . . . . . . . . . . . . . . . . . . . .

Gasket Set −Engine 4. . . . . . . . . . . . . . . . .

Gasket Set −Valve 4. . . . . . . . . . . . . . . . . .

Governor Spring 8. . . . . . . . . . . . . . . . . . . .

Exhaust System 6. . . . . . . . . . . . . . . . . . . .

Ignition 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Intake Manifold 4. . . . . . . . . . . . . . . . . . . . .

Kit −Carburetor Overhaul 5. . . . . . . . . . . .

Lubrication 3. . . . . . . . . . . . . . . . . . . . . . . . .

Operator’s Manual 2. . . . . . . . . . . . . . . . . .

Piston, Rings, Connecting Rod 3. . . . . . .

Rewind Starter 7. . . . . . . . . . . . . . . . . . . . . .

Valves 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warning Label 2. . . . . . . . . . . . . . . . . . . . . .

21B900

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

5036−2Assemblies include all parts shown in frames. 06/18/2008

750

943

1024

965

1024A

307

306

691

718

552

584

1263

1264

1027

1017

415

239

1058 OPERATOR’S MANUAL 1319 WARNING LABEL

REQUIRED when replacing parts

with warning labels affixed.

850

21B900

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

5036−3Assemblies include all parts shown in frames. 06/18/2008

842

524

847

523

525

741

146

357

1270

757

758

759

21B900

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

5036−4Assemblies include all parts shown in frames. 06/18/2008

654

617

635

830

1034

1022

883

238

36 868

1022

1023

914

1022

868

1095 VALVE GASKET SET

383

192

1022

358 ENGINE GASKET SET

868

691

524

617 883

1266

842

1029

1026

1266A

337

705

617 51

943

850

50B 51

617

186 415

21B900

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

5036−5Assemblies include all parts shown in frames. 06/18/2008

950

276

137

104

105

142 1091

987

130

LMT / PART

NUMBER

LOCATIONS 106

131

133

975

WALBRO

143

127

634 108

141

104A

105A

634A

987A

95A

130A

98A

133A

94A

141A

131A

127A

108A 117 118

1091

231

125A

104

105

106

137

142

987

127

634

276

121 CARBURETOR OVERHAUL KIT

977 CARBURETOR GASKET SET

51 137 276

1266

1266A

977A CARBURETOR GASKET SET

121A CARBURETOR OVERHAUL KIT

95A

104A

105A

127A

617

634A

1266

1266A

987A

137A

617

NIKKI

276A

1127

975A

137A 137A

276A

947A

135A

21B900

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

5036−6Assemblies include all parts shown in frames. 06/18/2008

445

1267

967

305

305A

643

968

304

1040

613

613A

883

823

677

864

676

613

1040A

676A

677

1266A

1266

431

1036 EMISSIONS LABEL

883

613B

300A300G

21B900

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

5036−7Assemblies include all parts shown in frames. 06/18/2008

697

783

1051

363

729A

802

579

1051

310

803

544

801

311

797

513

783

37A

597

456

689

459

1044

309

510

608

1090

455

23A

563

493

949

78A

729B

1070

1005

1005A 415A

1070A

73A

1005B

21B900

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

5036−8Assemblies include all parts shown in frames. 06/18/2008

527

356B

1054

356

729

240 240A

918

601

187

601

385A

387

387A

385

957

972

601

187B

521

789

356A

356C

789A

601

187A

788

385

387A

601

187B

601

187C 527A

729

789B

920

216

202

232

267

265

209

222

188

616

404

614

562

505

227

559

559A

621

268

269

271

270

359

507 520

373

851

334

333

205

203

958

601A

216A

21B900

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

5036−9Assemblies include all parts shown in frames. 06/18/2008

578 878

474B 474C

877A 877B

877

DUAL

CIRCUIT

DC ONLY

NOTE: All stators use a No. mounting screw.

1119

NOTE: The proper flywheel part number and/or the alternator magnet size will

determine the alternator type or output. See repair instruction manual

for additional information.

474A 1059 10591059

501A

526A

TRI

578

501B

526B

877C

10 −16 AMP

474D 1059

578

501D

526B

CIRCUIT

501C

526A

REF. PART REF. PART REF. PART

NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

21B900

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.

ΔIncluded 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.

5036−10 Assemblies include all parts shown in frames. 06/18/2008

1 697377 Cylinder Assembly

2 399265 Kit−Bushing/Seal

(Magneto Side)

3K391086S Seal−Oil

(Magneto Side)

4 697106 Sump−Engine

(Used After Code Date

05100200).

−−−−−− Note −−−−−−

795940 Sump−Engine

(Used Before Code

Date 05100200).

Must Use Kit 795940,

Includes Sump And

Counterweight.

4A 697188 Sump−Engine

(Used After Code Date

05100200).

Used on Type No(s).

0016, 0036, 0038,

0110, 0114, 0116,

0117, 0119, 0120,

0123, 0124, 0126,

0127, 0129, 0130,

0136, 0138, 0141,

0142, 0146, 0147,

0149, 0152, 0155,

0156, 0157, 0163,

0183, 0190, 0193,

0194, 0195, 0197,

0198, 0202.

−−−−−− Note −−−−−−

795957 Sump−Engine

(Used Before Code

Date 05100200).

Used on Type No(s).

0016, 0036, 0038,

0110, 0114, 0116,

0117, 0119, 0120,

0123, 0124, 0126,

0127, 0129, 0130,

0136, 0138, 0141,

0142, 0146, 0147,

0149, 0152, 0155,

0156, 0157, 0163,

0183, 0190, 0193,

0194, 0195, 0197,

0198, 0202.

Must Use Kit 795957,

Includes Sump And

Counterweight.

5 792964 Head−Cylinder

7KΔ273280S Gasket−Cylinder Head

9K697109 Gasket−Breather

(Used Before Code

Date 07071900).

(After Date Code Use

Liquid Sealant

Reference 850)

10 697157 Screw

(Breather Assembly)

11 794683 Tube−Breather

(Used After Code Date

07071800).

−−−−−− Note −−−−−−

697113 Tube−Breather

(Used Before Code

Date 07071900).

12 K697110 Gasket−Crankcase

(.015” Thick)

(Standard)

13 690360 Screw

(Cylinder Head)

14 790560 Stud

(Cylinder Head)

15 690946 Plug−Oil Drain

(3/8” Standard)

16 697390 Crankshaft

20 K791892 Seal−Oil

(PTO Side)

22 692125 Screw

(Crankcase

Cover/Sump)

23 698281 Flywheel

Used on Type No(s).

0026, 0036, 0038,

0120, 0121, 0124,

0129, 0131, 0132,

0138, 0140, 0141,

0146, 0147, 0149,

0152, 0153, 0159,

0163, 0183, 0190,

0193, 0203.

−−−−−− Note −−−−−−

693556 Flywheel

Used on Type No(s).

0020, 0127, 0157,

0192, 0194, 0198,

0202.

693557 Flywheel

Used on Type No(s).

0028, 0126, 0154,

0156, 0164.

698282 Flywheel

Used on Type No(s).

0110, 0119, 0123,

0130, 0136, 0155,

0195, 0197.

23A 693555 Flywheel

(Rewind Starter)

Used on Type No(s).

0015, 0016, 0117,

0142.

−−−−−− Note −−−−−−

698283 Flywheel

(Rewind Starter)

Used on Type No(s).

0022, 0116.

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