Briggs & Stratton 12L800 User Manual

Illustrated Parts List

Model Series

12L800

TYPE NUMBERS

0805 through 3104.

TABLE OF CONTENTS

Alternator 7. . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

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

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

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

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

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

Electrical 7. . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Flywheel Brake 7. . . . . . . . . . . . . . . . . . . . .

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

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

Ignition 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Rewind Starter 6. . . . . . . . . . . . . . . . . . . . . .

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

REPLACES FORM MS−2271−09/07/2007

FILE IN SECT. 2 OF SERVICE MANUAL

FORM MS−2271−12/04/2007

12L800

PRINTED IN U.S.A.

All rights reserved. No part of this material may be reproduced or transmitted,
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.

COPYRIGHT by BRIGGS & STRATTON CORPORATION

12L800

306

635

13

1319 WARNING LABEL

REQUIRED when replacing parts
with warning labels affixed.

11

50

51

307

5

337

383

7

25

54

1058 OPERATOR’S MANUAL

1

869
870
871

27

2

24

1330 REPAIR MANUAL

3

16

718

34

584

585

36

33

35

868

1019 LABEL KIT

684

45

40

45

40

10

287

8

9

847

523

842

525

1095 VALVE GASKET SET

9

7

883

358 ENGINE GASKET SET

3

7

9

12

26

28

27

20

20A

51

163
524

585

617

668
842

883

29

32

374

524

4A

15

12

46A

374

20

22

715

721

101

743

83

15A

20A

46

741

146

43

32A

4

12

15

20

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

2271−2 Assemblies include all parts shown in frames. 12/04/2007

2

12L800

118

365

276

125A

125

117

133

975

137

276

276

134

104

98

163

94

127

130

PRIMER SYSTEM

109

217

633

97

633

95

130A

617

217

365

276 276

94

104

127

117A118A

121 CARBURETOR OVERHAUL KIT

134

137

163

133

975

137

276

134

104

98

276

617

633

633A

163

94

127

108

130

95

CHOKE SYSTEM

977 CARBURETOR GASKET SET

137

163

276

617

97

633

130A

617

633

633A

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

2271−3 Assemblies include all parts shown in frames. 12/04/2007

3

12L800

425A

968B

883

967A

300

445A

443A

81

613

966A

976

159

970

529

163

300B

81

613B

832D

836B

836

676D676B

832B

836B

677677

836

994

346

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

2271−4 Assemblies include all parts shown in frames. 12/04/2007

4

12L800

972

957A

930

190

958

187

601A

1059

601

670

187A

972B

601

957A

187B

601

957B

957B

601

240

188

222 222A

621

98A

668

268

271

269

270

267

621

265

668

202

209

227

562

505

615

404

616

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

2271−5 Assemblies include all parts shown in frames. 12/04/2007

5

12L800

921

969

921A

969A

604

608

604A

55

1211

1210

564A

459

456

689

597

65

592

58

60

37

78

304

305

1036 EMISSIONS LABEL

564

930

930A

925

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

2271−6 Assemblies include all parts shown in frames. 12/04/2007

6

12L800

309

356

789B

510

783

784

785

513

742

937

651

783A

1119

474

910

309A

935

1160

510

783

784

785

513

742

937

334

651

783A

333

851

923

621

745

922

332

455

853

801

544

803

802

545

310

853

363

697

1005

23A

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

2271−7 Assemblies include all parts shown in frames. 12/04/2007

7

12L800

REF. PART REF. PART REF. PART

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

1 697324 Cylinder Assembly
2 399269 Kit−Bushing/Seal

(Magneto Side)

3 K299819S Seal−Oil

(Magneto Side)

4 493279 Sump−Engine

4A 493365 Sump−Engine

(Auxilliary PTO)

5 691160 Head−Cylinder
7 K∅692249 Gasket−Cylinder Head
8 695250 Breather Assembly
9 K∅699833 Gasket−Breather

10 94650 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 691454 Crankshaft

−−−−−−− Note −−−−−
691451 Crankshaft

Used on Type No(s).
0806, 1507, 1508,
1509, 1562.
691452 Crankshaft
Used on Type No(s).
0805, 1505, 1506,
2304, 2604, 3104.

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).
0805, 0806.

24 222698S Key−Flywheel

25 795429 Piston Assembly

(Standard)
(Used After Code Date

07090300).

−−−−−−− Note −−−−−
791096 Piston

Assembly
(Standard)
(Used Before Code
Date 07090400).
795430 Piston
Assembly
(.020” Oversize)
(Used After Code Date

07090300).
791325 Piston
Assembly
(.020” Oversize)
(Used Before Code
Date 07090400).

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 Before Code
Date 04031500).
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 Before Code
Date 04102200).

27 691866 Lock−Piston Pin
28 499423 Pin−Piston

(Standard)

29 499424 Rod−Connecting

(Standard)

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
46 691449 Camshaft

46A 691459 Camshaft

45 690548 Tappet−Valve
50 497465 Manifold−Intake
51 K272199S Gasket−Intake
54 691650 Screw

(Intake Manifold)

55 691421 Housing−Rewind

Starter

58 280399S Rope−Starter

(Cut To Required
Length)

60 281434S Grip−Starter Rope
65 690837 Screw

(Rewind Starter)

78 691108 Screw

(Flywheel Guard)

81 691740 Lock−Muffler Screw
83 691778 Shaft−Auxiliary Drive
94 D493765 Kit−Idle Mixture
95 691636 Screw

(Throttle Valve)

K Included in Engine Gasket Set−Ref. No.358.
D Included in Carburetor Overhaul Kit−Ref. No. 121.

z Included in Carburetor Gasket Set−Ref. No. 977.

∅ 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.

2271−8 Assemblies include all parts shown in frames. 12/04/2007

8

12L800

REF. PART REF. PART REF. PART

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

97 493267 Shaft−Throttle

(Metal)

−−−−−−− Note −−−−−
696565 Shaft−Throttle

(Plastic)

98 398185 Kit−Idle Speed

(Carburetor)

98A 493280 Kit−Idle Speed

101 691623 Pin−Shaft
104 D691242 Pin−Float Hinge
108 691182 Valve−Choke
109 494218 Shaft−Choke
117 494870 Jet−Main

(Standard)
(Used After Code Date

02092900).

−−−−−−− Note −−−−−
498975 Jet−Main

(Standard)
(Used Before Code
Date 02093000).

117A 498976 Jet−Main

(Standard)
(Used After Code Date

96060200).

−−−−−−− Note −−−−−
496063 Jet−Main

(Standard)
(Used Before Code
Date 96060300).

118 497315 Jet−Main

(High Altitude)
(Used After Code Date

02092900).

−−−−−−− Note −−−−−
496495 Jet−Main

(High Altitude)
(Used Before Code
Date 02093000).

118A 498977 Jet−Main

(High Altitude)
(Used After Code Date

96060200).

−−−−−−− Note −−−−−
497315 Jet−Main

(High Altitude)
(Used Before Code
Date 96060300).

121 498260 Kit−Carburetor

Overhaul

125 698444 Carburetor

(Primer System)

125A 498964 Carburetor

(Choke System)
(Used After Code Date

96060200).

−−−−−−− Note −−−−−
497353 Carburetor

(Choke System)
(Used Before Code
Date 96060300).

127 D694468 Plug−Welch
130 691203 Valve−Throttle

−−−−−−− Note −−−−−
696564 Valve−Throttle

(Used With Plastic
Throttle Shaft)

130A 691181 Valve−Throttle

133 398187 Float−Carburetor
134 D398188 Kit−Needle/Seal

z693981 Gasket−Float Bowl

137 D
146 690979 Key−Timing
159 691753 Bracket−Air Cleaner

Primer

163KDz272653 Gasket−Air Cleaner
187 791766 Line−Fuel

(Cut to Required
Length)

187A 791873 Line−Fuel

(Molded)

187B 791891 Line−Fuel

(Includes Filter)
(Used After Code Date

05063000).

−−−−−−− Note −−−−−
692042 Line−Fuel

(Includes Filter)
(Used Before Code
Date 05070100).

188 690877 Screw

(Control Bracket)

190 690940 Screw

(Fuel Tank)

202 691829 Link−Mechanical

Governor

209 691292 Spring−Governor

−−−−−−− Note −−−−−
691835 Spring−

Governor
Used on Type No(s).
0805, 0806, 1505,
1506, 1507, 1508.
262663 Spring−
Governor
Used on Type No(s).
1509, 1562.

217 690354 Spring−Choke Return
222 790143 Bracket−Control

(Remote/Manual
Friction)(Primer)

222A 692021 Bracket−Control

(Remote
Choke A Matic,Non
Compliance)

227 690783 Lever−Governor

Control

240 298090S Filter−Fuel
265 690798 Clamp−Casing
267 691044 Screw

(Casing Clamp)

268 691025 Casing−Control Wire

(Cut to Required
Length)

269 691026 Wire−Control

(Cut to Required
Length)

270 691027 Nut

(Control Wire Casing)

271 691028 Lever−Control

z271716 Washer−Sealing

276 D
287 690940 Screw

(Dipstick Tube)

300 496106S Muffler

(Tuned)

300B 497681 Muffler

(Catalyst)

304 493293 Housing−Blower

−−−−−−− Note −−−−−
493294 Housing−

Blower
Used on Type No(s).
0805, 0806.

K Included in Engine Gasket Set−Ref. No.358.
D Included in Carburetor Overhaul Kit−Ref. No. 121.

z Included in Carburetor Gasket Set−Ref. No. 977.

∅ 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.

2271−9 Assemblies include all parts shown in frames. 12/04/2007

9

12L800

REF. PART REF. PART REF. PART

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

305 691108 Screw

(Blower Housing)

306 690450 Shield−Cylinder
307 690345 Screw

(Cylinder Shield)

309 695550 Motor−Starter

(Used Before Code
Date 07052900).

309A 795092 Motor−Starter

(Used After Code Date

07052800).

310 692327 Bolt

(Starter Motor)

332 690662 Nut

(Flywheel)

333 802574 Armature−Magneto
334 691061 Screw

(Magneto Armature)

337 802592S Plug−Spark
346 690661 Screw

(Spark Arrestor)

356 692390 Wire−Stop
358 497316 Gasket Set−Engine
363 19069 Flywheel Puller
365 691688 Screw

(Carburetor)

374 691074 Washer

(Camshaft)

383 89838S Wrench−Spark Plug
404 690272 Washer

(Governor Crank)

425A 690670 Screw

(Air Cleaner Cover)

443A 692523 Screw

(Air Cleaner Primer
Base)

445A 491588S Filter−Air Cleaner

Cartridge

455 791960 Cup−Flywheel
456 692299 Plate−Pawl Friction
459 281505S Plate−Ratchet
474 691991 Alternator
505 691251 Nut

(Governor Control
Lever)

510 795093 Drive−Starter

513 692358 Clutch−Drive
523 499621 Dipstick
524 K692296 Seal−Dipstick Tube
525 495265 Tube−Dipstick
529 691923 Grommet
544 690786 Armature−Starter
545 492919 Washer Set

(Starter Motor)

562 691119 Bolt

(Governor Control
Lever)

564 691132 Screw

(Control Cover)

564A 691142 Screw

(Control Cover)

584 697734 Cover−Breather

Passage

585 K691879 Gasket−Breather

Passage

592 690800 Nut

(Rewind Starter)

597 691696 Screw

(Pawl Friction Plate)

601 791850 Clamp−Hose

601A 691038 Clamp−Hose

604 691757 Cover−Control

604A 691344 Cover−Control

608 497680 Starter−Rewind
613 691340 Screw

(Muffler)

613B 691114 Screw

(Muffler)

615 690340 Retainer−Governor

Shaft

616 698801 Crank−Governor

z270344 Seal−O Ring

617KD

(Intake Manifold)

621 692310 Switch−Stop

z691321 Seal−Choke/Throttle

633 D

Shaft

633A D

z693867 Seal−Choke/Throttle

Shaft

635 66538S Boot−Spark Plug
651 691660 Screw

(Starter Gear Cover)

668 K493823 Spacer
670 692294 Spacer−Fuel Tank

676B 397931 Deflector−Muffler

(Includes Spark
Arrestor)

676D 497682 Deflector−Muffler

(For TUV)

677 690661 Screw

(Muffler Deflector)

684 690345 Screw

(Breather Passage
Cover)

689 691855 Spring−Friction
697 691127 Screw

(Drive Cap)

715 691147 Screw

(Shaft Stop)

718 690959 Pin−Locating
721 690449 Stop−Shaft
741 794388 Gear−Timing

(Use Without Woodruff
Key)
(Used After Code Date

07093000).

−−−−−−− Note −−−−−
790345 Gear−Timing

(Use Without Woodruff
Key)
(Used Before Code
Date 07100100).
691830 Gear−Timing
(Uses Woodruff Key)

742 93941 Retainer−E Ring
743 691772 Gear−Drive
745 691648 Screw

(Brake)

783 691918 Gear−Pinion

(19 Teeth)
(Starter Drive)

783A 691269 Gear−Pinion

(12 Teeth)

784 795095 Cover−Starter Gear
785 692352 Gasket−Starter Cover

789B 696547 Harness−Wiring

801 690782 Cap−Drive

K Included in Engine Gasket Set−Ref. No.358.
D Included in Carburetor Overhaul Kit−Ref. No. 121.

z Included in Carburetor Gasket Set−Ref. No. 977.

∅ 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.

2271−10 Assemblies include all parts shown in frames. 12/04/2007

10

12L800

REF. PART REF. PART REF. PART

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

802 695267 Cap−End

(Used After Code Date

00040600).

−−−−−−− Note −−−−−
695975 Cap−End

(Used Before Code
Date 00040700).

803 695266 Housing−Starter

(Used After Code Date

00040600).

−−−−−−− Note −−−−−
695975 Housing−

Starter
(Used Before Code
Date 00040700).

832B 497683 Guard−Muffler

(Catalyst)

832D 499034 Guard−Muffler

(Tuned)

836 690664 Screw

(Muffler Guard)

836B 691147 Screw

(Muffler Guard)

842 K691031 Seal−O Ring

(Dipstick Tube)

847 692047 Dipstick/Tube

Assembly

851 493880S Terminal−Spark Plug
853 695268 Adapter−Wire
868 697338 Seal−Valve
869 691155 Seat−Valve

(Intake)

870 690380 Seat−Valve

(Exhaust)

871 262001 Bushing−Valve Guide

(Exhaust)

−−−−−−− Note −−−−−
63709 Bushing−Valve

Guide

883 K∅691881 Gasket−Exhaust
910 691094 Stud

(Alternator)

921 497233 Cover−Blower Housing

921A 695886 Cover−Blower Housing

922 691831 Spring−Brake
923 691994 Brake
925 795403 Cover−Linkage

(Used After Code Date

07072200).

−−−−−−− Note −−−−−
690595 Cover−

Linkage
(Used Before Code
Date 07072300).

930 691919 Guard−Rewind

930A 691345 Guard−Rewind

935 499421 Switch−Interlock
937 691325 Spline−Starter

957A 692046 Cap−Fuel Tank

(Plastic)

957B 699985 Cap−Fuel Tank

(Plastic)

958 698183 Valve−Fuel Shut Off

(Plastic)

966A 496116 Base−Air Cleaner

Primer

967A 493537S Filter−Pre Cleaner
968B 692298 Cover−Air Cleaner

969 690700 Screw

(Blower Housing
Cover)

969A 691138 Screw

(Blower Housing
Cover)

970 691669 Screw

(Air Cleaner Primer
Bracket)

972 699392 Tank−Fuel

(Plastic)

972B 699374 Tank−Fuel

(Plastic)

975 493640 Bowl−Float
976 694395 Primer−Carburetor
977 498261 Gasket Set−Carburetor

994 398067 Arrestor−Spark
1005 691346 Fan−Flywheel
1019 494256 Kit−Label
1036 Label−Emissions

(Available From A
Briggs & Statton
Authorized Dealer)

1058 277039 Operator’s Manual
1059 692311 Kit−Screw/Washer
1095 498528 Gasket Set−Valve

1119 691648 Screw

(Alternator)

1160 690345 Screw

(Interlock Switch)

1210 498144 Pulley/Spring

Assembly
(Pulley)

1211 498144 Pulley/Spring

Assembly
(Spring)

1319 794467 Label−Warning
1330 270962 Manual−Repair

K Included in Engine Gasket Set−Ref. No.358.
D Included in Carburetor Overhaul Kit−Ref. No. 121.

z Included in Carburetor Gasket Set−Ref. No. 977.

∅ 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.

2271−11 Assemblies include all parts shown in frames. 12/04/2007

11