Briggs & Stratton 12J800 Series Setup guide

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−0991−11/30/2007

REPLACES FORM MS−0991−10/31/2007

FILE IN SECT. 2 OF SERVICE MANUAL

12J800

Illustrated Parts List

Model Series

12J800

TYPE NUMBERS

0628 through 6699.

TABLE OF CONTENTS

Alternator 8. . . . . . . . . . . . . . . . . . . . . . . . . .

Air Cleaner 4. . . . . . . . . . . . . . . . . . . . . . . . .

Blower Housing/Shrouds 6. . . . . . . . . . . .

Camshaft 2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Carburetor 3. . . . . . . . . . . . . . . . . . . . . . . . .

Controls 5. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crankshaft 2. . . . . . . . . . . . . . . . . . . . . . . . .

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

Electric Starter 8. . . . . . . . . . . . . . . . . . . . . .

Electrical 8. . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Exhaust System 4. . . . . . . . . . . . . . . . . . . .

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

Flywheel Brake 8. . . . . . . . . . . . . . . . . . . . .

Fuel Supply 5. . . . . . . . . . . . . . . . . . . . . . . .

Governor Spring 5. . . . . . . . . . . . . . . . . . . .

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

Kits/Gaskets 2 & 3. . . . . . . . . . . . . . . . . . . . . . . .

Lubrication 2. . . . . . . . . . . . . . . . . . . . . . . .

Piston Group 2. . . . . . . . . . . . . . . . . . . . . . .

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

Valves 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12J800

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

0991−2Assemblies include all parts shown in frames. 11/30/2007

128

718

307

306

383

635

337

13 5

15A

20A

847

523

287

524

525

842

883

1095 VALVE GASKET SET

40 45

358 ENGINE GASKET SET

883

842

617

524

163

20A

585

668

32A

743

101

721

715

146

741

357A

374

46A

374

870

869

871

684

585

584

635A

868

1019 LABEL KIT

1330 REPAIR MANUAL

1058 OPERATOR’S MANUAL

1319 WARNING LABEL

REQUIRED when replacing parts

with warning labels affixed.

12J800

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

0991−3Assemblies include all parts shown in frames. 11/30/2007

117

975

133

134

617

130

130A

633

127A

163

276

137

104

365

276

118 276

94 134

975

133

134

125

CHOKE SYSTEM

PRIMER SYSTEM

108

633

217

692

217

617

130

130A

633

127

163

276

137

104

365

276 276

125A

109

127

121 CARBURETOR OVERHAUL KIT

977 CARBURETOR GASKET SET

163

137 276

104

127

137

163

633

617

276

617

633

127A

117A118A

12J800

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

0991−4Assemblies include all parts shown in frames. 11/30/2007

346

677

836

613

883

163

529

970

159

443A

445A

967A

968B

425A

966A

976

300 300A

676

832B

300B

994

613A

613B

836B

832D

836B

836

12J800

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

0991−5Assemblies include all parts shown in frames. 11/30/2007

670

190

930

240

209

616

404

615

505

562

202

188843

265

267

270

271

268

621

227

98A

222 222B222A

668

621

668

601

269

265A

267

187C187 187B187A

601

601A

601

972 972B

1059

957A

957B

222D

668

222C

621

668

12J800

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

0991−6Assemblies include all parts shown in frames. 11/30/2007

930A

930

921E

969

604A

564A

921B

969A

921

564

604

925

305

304

1036 EMISSIONS LABEL

921A

921C

969A

969

969A

921K

969A

921H

12J800

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

0991−7Assemblies include all parts shown in frames. 11/30/2007

455

101A

1134

276A

678 60

592

597

456

689

459

1210

1211

455A

363

23A

455

332

608

60B

608A

459A

144

946

59A

55A

689A

456A

592

1005

12J800

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

0991−8Assemblies include all parts shown in frames. 11/30/2007

621

922

745

236

923

990A

1160

851

334

910

474

1119

578

356

935

333

356A

789B789A

1236

1009

990

664

500

892

356C

334

851A

635A

333A

310

802

853

803

544

801

783A

651

513

785

784

783

937

742

309

545

510

853

697

783A

651

513

785

784

783

937

742

510

309A

12J800

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

0991−9Assemblies include all parts shown in frames. 11/30/2007

1 697324 Cylinder Assembly

2 399269 Kit−Bushing/Seal

(Magneto Side)

3K299819S Seal−Oil

(Magneto Side)

4 493279 Sump−Engine

−−−−−−− Note −−−−−

696294 Sump−Engine

Used on Type No(s).

2327, 2328, 2329.

4A 493365 Sump−Engine

(Auxiliary PTO)

5 691160 Head−Cylinder

7K∅692249 Gasket−Cylinder Head

8 695250 Breather Assembly

9K∅699833 Gasket−Breather

10 691125 Screw

(Breather Assembly)

11 691781 Tube−Breather

12 K692232 Gasket−Crankcase

13 690912 Screw

(Cylinder Head)

15 691680 Plug−Oil Drain

(Square Socket)

15A 691093 Plug−Oil Drain

(Hex Socket)

16 691451 Crankshaft

(Used After Code Date

97011200).

−−−−−−− Note −−−−−

694442 Crankshaft

(Used Before Code

Date 97011300).

691450 Crankshaft

(Used After Code Date

97011200).

Used on Type No(s).

0653, 0818, 0819,

0825, 0881, 1324,

1328, 1330, 1331,

1337, 1363, 1367,

1370, 1371, 1522,

1528, 1535, 1787,

1918, 1919, 1936,

2372, 2628, 2635,

2825, 2919, 2925,

3113, 3114, 3131.

694440 Crankshaft

(Used Before Code

Date 97011300).

Used on Type No(s).

1522, 1528, 1535,

2825.

692978 Crankshaft

(Used After Code Date

97011200).

Used on Type No(s).

0652, 0861, 1961,

1968, 1978.

690793 Crankshaft

(Used Before Code

Date 97011300).

Used on Type No(s).

0861, 1961.

693017 Crankshaft

(Used After Code Date

97011200).

Used on Type No(s).

2824.

694441 Crankshaft

(Used Before Code

Date 97011300).

Used on Type No(s).

2824.

691452 Crankshaft

(Used After Code Date

97011200).

Used on Type No(s).

0874, 0875, 1120,

1122, 1123, 1166,

1366, 1567, 1753,

1754, 1755, 1904,

1905, 1917, 1925,

1927, 1929, 1974,

2322, 2325, 2326,

2327, 2328, 2329,

2330, 2366, 2367,

2371, 2636, 2816,

2916, 3104, 3136.

694059 Crankshaft

(Used Before Code

Date 97011300).

Used on Type No(s).

0875, 1120, 1166,

2816.

691454 Crankshaft

(Used After Code Date

97011200).

Used on Type No(s).

0878, 1338, 2826,

2926.

692000 Crankshaft

(Used Before Code

Date 97011300).

Used on Type No(s).

2826.

691455 Crankshaft

(Used After Code Date

97011200).

Used on Type No(s).

1966, 2818, 2918,

3125.

691375 Crankshaft

(Used Before Code

Date 97011300).

Used on Type No(s).

2818.

694079 Crankshaft

Used on Type No(s).

2368.

696337 Crankshaft

Used on Type No(s).

1753.

696009 Crankshaft

Used on Type No(s).

2369, 2370.

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

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

zIncluded in Carburetor Gasket Set−Ref. No. 977.

∅Included in Valve Gasket Set−Ref. No 1095.

REF. PART REF. PART REF. PART

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

12J800

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

0991−10 Assemblies include all parts shown in frames. 11/30/2007

20 K399781S Seal−Oil

(PTO Side)

20A K691952 Seal−Oil

(PTO Side)

(Auxiliary PTO)

22 691092 Screw

(Crankcase Cover/

Sump)

23A 691987 Flywheel

−−−−−−− Note −−−−−

691992 Flywheel

Used on Type No(s).

0826, 0873, 0874,

1552, 1567, 1753,

1925, 1931, 1934,

1973, 1974, 2805,

2905, 2935, 4961.

696291 Flywheel

Used on Type No(s).

2327, 2328, 2329.

24 222698S Key−Flywheel

25 795429 Piston Assembly

(Standard)

(Used After Code Date

07090300).

−−−−−−− Note −−−−−

791096 Piston

Assembly

(Used After Code Date

04031400 and Before

Code Date 07090400).

494058 Piston

Assembly

(Standard)

(Used Before Code

Date 97011300).

795430 Piston

Assembly

(.020” Oversize)

(Used After Code Date

07090300).

791325 Piston

Assembly

(.020” Oversize)

(Used After Code Date

04102100 and Before

Code Date 07040400).

494060 Piston

Assembly

(.020” Oversize)

(Used Before Code

Date 97011300).

26 795431 Ring Set

(Standard)

(Used After Code Date

07090300).

−−−−−−− Note −−−−−

791098 Ring Set

(Standard)

(Used After Code Date

04031400 and Before

Code Date 07090400).

499425 Ring Set

(Standard)

(Used After Code Date

97011200 and Before

Code Date 04031500).

493261 Ring Set

(Standard)

(Used Before Code

Date 97011300).

795432 Ring Set

(.020” Oversize)

(Used After Code Date

07090300).

791324 Ring Set

(.020” Oversize)

(Used After Code Date

04102100 and Before

Code Date 07090400).

499427 Ring Set

(.020” Oversize)

(Used After Code Date

97011200 and Before

Code Date 04102200).

493389 Ring Set

(.020” Oversize)

(Used Before Code

Date 97011300).

493390 Ring Set

(.030” Oversize)

(Used Before Code

Date 97011300).

27 691866 Lock−Piston Pin

(Used After Code Date

97011200).

−−−−−−− Note −−−−−

691588 Lock−Piston

(Used Before Code

Date 97011300).

28 499423 Pin−Piston

(Standard)

(Used After Code Date

97011200).

−−−−−−− Note −−−−−

298909 Pin−Piston

(Standard)

(Used Before Code

Date 97011300).

298908 Pin−Piston

(.005” Oversize)

(Used Before Code

Date 97011300).

29 499424 Rod−Connecting

(Standard)

(Used After Code Date

97011200).

−−−−−−− Note −−−−−

490566 Rod−

Connecting

(Standard)

(Used Before Code

Date 97011300).

32 691664 Screw

(Connecting Rod)

32A 695759 Screw

(Connecting Rod)

(Used After Code Date

00042200).

33 262651S Valve−Exhaust

34 262652S Valve−Intake

35 691270 Spring−Valve

(Intake)

36 691270 Spring−Valve

(Exhaust)

37 694086 Guard−Flywheel

40 692194 Retainer−Valve

43 691997 Slinger−Governor/Oil

45 690548 Tappet−Valve

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

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

zIncluded in Carburetor Gasket Set−Ref. No. 977.

∅Included in Valve Gasket Set−Ref. No 1095.

REF. PART REF. PART REF. PART

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

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