Briggs & Stratton 12D100 Series Setup guide

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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,
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PRINTED IN U.S.A.
FORM MS−3399−06/17/2008
REPLACES FORM MS−3399−04/23/2008
FILE IN SECT. 2 OF SERVICE MANUAL
12D100
Illustrated Parts List
Model Series
12D100
TYPE NUMBERS
0110 through 0940.
TABLE OF CONTENTS
Blower Housing/Shrouds 6. . . . . . . . . . . .
Camshaft 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Carburetor 4. . . . . . . . . . . . . . . . . . . . . . . . .
Controls 5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankcase Cover 2. . . . . . . . . . . . . . . . . . .
Crankshaft 2. . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head 3. . . . . . . . . . . . . . . . . . . . . .
Electric Starter 5. . . . . . . . . . . . . . . . . . . . . .
Exhaust System 6. . . . . . . . . . . . . . . . . . . .
Flywheel 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Supply 4. . . . . . . . . . . . . . . . . . . . . . . .
Governor Spring 5. . . . . . . . . . . . . . . . . . . .
Ignition 5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kits/Gaskets −Carburetor 4. . . . . . . . . . .
Kits/Gaskets −Engine 2. . . . . . . . . . . . . . .
Kits/Gaskets −Valves 3. . . . . . . . . . . . . . .
Lubrication 2. . . . . . . . . . . . . . . . . . . . . . . .
Piston Group 2. . . . . . . . . . . . . . . . . . . . . . .
Rewind Starter 5. . . . . . . . . . . . . . . . . . . . . .

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−2Assemblies include all parts shown in frames. 06/17/2008
2
552
718 15
615
3
307
22
12 20
51
7
993
1022
883A
3
868
358 ENGINE GASKET SET
1019 LABEL KIT
1616
2
306A
307A
27
27
30
32
32A
25 26
28
29
746
742
220
219
24
598
146
741
16
842
523
847
524
21
12
20
20A
18B
46A
20A
15B
998 287
307B
46
12
20
18
21
1330 REPAIR MANUAL
1058 OPERATOR’S MANUAL
1319 WARNING LABEL
REQUIRED when replacing parts
with warning labels affixed.

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−3Assemblies include all parts shown in frames. 06/17/2008
3
383 337
635A
36 238
40
35 238
40
868 51
7
993
1022
619
830
1029
13
1026
45
914
914A
1022
51
7
993 1022
868
1095 VALVE GASKET SET
155
34
192
1023
33
122
5
1034
914B
635

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−4Assemblies include all parts shown in frames. 06/17/2008
4
365
51
95
692
104
137
276
186
633A
130
108
127A
633
276
276
51
118
122
117
975
133
134
97
109B
98
51
104
137
276
121 CARBURETOR OVERHAUL KIT
633
633A
127A
134
122
977 CARBURETOR GASKET SET
276
51 137 633
633A
957
190
972
127
127
125A
958
601
187
601
187A
633
109C
601
187B
633
109C

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−5Assemblies include all parts shown in frames. 06/17/2008
5
1119
334
851
333
1054
209
505
562
227
632
990
892
271
270 268
269
474
597
456
689
459
1210
1211 58
65A
55A
60B
608A
930
188
1230
356L
356C
347
578B
578A
356J
188
222F
190 1230
222D
309A

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−6Assemblies include all parts shown in frames. 06/17/2008
6
1252
493A
318
528
1224
11B
663
281A
976
363
23
1070
1005
455
1036 EMISSIONS LABEL
65
304
37
78
305
1251
663
1252A
604A
1251B
1251A
604B
564
1252
1196
1196A
731A
731B
472A
613D
883A
300E
332A
836E
832D
472C
676D
677A
1005A
676A
996
1011

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−7Assemblies include all parts shown in frames. 06/17/2008
7
1 699510 Cylinder Assembly
2 399269 Kit−Bushing/Seal
(Magneto Side)
3K299819S Seal−Oil
(Magneto Side)
5 699486 Head−Cylinder
7K∅698210 Gasket−Cylinder Head
11B 695745 Tube−Breather
12 K699485 Gasket−Crankcase
13 699482 Screw
(Cylinder Head)
15 691686 Plug−Oil Drain
15B 695757 Plug−Oil Drain
16 699445 Crankshaft
−−−−−−− Note −−−−−
699449 Crankshaft
Used on Type No(s).
0111.
699454 Crankshaft
Used on Type No(s).
0940.
18 699804 Cover−Crankcase
18B 699677 Cover−Crankcase
20 K692550 Seal−Oil
(PTO Side)
20A K691952 Seal−Oil
(PTO Side)
(Auxiliary Drive)
21 281658S Cap−Oil Fill
22 699478 Screw
(Crankcase Cover/
Sump)
23 699516 Flywheel
24 222698S Key−Flywheel
25 791968 Piston Assembly
(Standard)
−−−−−−− Note −−−−−
791326 Piston
Assembly
(.020” Oversize)
26 791969 Ring Set
(Standard)
(Used After Code Date
05060600).
−−−−−−− Note −−−−−
499631 Ring Set
(Standard)
(Used Before Code
Date 05060700).
791324 Ring Set
(.020” Oversize)
(Used After Code Date
05060600).
692786 Ring Set
(.020” Oversize)
(Used Before Code
Date 05060700).
27 691866 Lock−Piston Pin
28 499423 Pin−Piston
29 690124 Rod−Connecting
30 791584 Dipper−Connecting
Rod
32 691664 Screw
(Connecting Rod)
32A 695759 Screw
(Connecting Rod)
33 499642 Valve−Exhaust
34 499641 Valve−Intake
35 691304 Spring−Valve
(Intake)
36 691304 Spring−Valve
(Exhaust)
37 699661 Guard−Flywheel
40 692194 Retainer−Valve
45 690977 Tappet−Valve
46 693404 Camshaft
46A 695285 Camshaft
51KzD∅692555 Gasket−Intake
55A 696710 Housing−Rewind
Starter
58 693389 Rope−Starter
(Cut To Required
Length)
60B 699334 Grip−Starter Rope
65 699228 Screw
(Rewind Starter)
65A 699851 Screw
(Rewind Starter)
78 699205 Screw
(Flywheel Guard)
95 691636 Screw
(Throttle Valve)
97 690024 Shaft−Throttle
98 398185 Kit−Idle Speed
104 D691242 Pin−Float Hinge
108 695807 Valve−Choke
109C 791954 Shaft−Choke
109B 695729 Shaft−Choke
117 690048 Jet−Main
(Standard)
118 498977 Jet−Main
(High Altitude)
121 792006 Kit−Carburetor
Overhaul
122 D693749 Spacer−Carburetor
125A 794587 Carburetor
127 D694468 Plug−Welch
127A D691739 Plug−Welch
130 691181 Valve−Throttle
133 398187 Float−Carburetor
134 D398188 Kit−Needle/Seat
137 Dz693981 Gasket−Float Bowl
146 690979 Key−Timing
155 698214 Plate−Cylinder Head
186 692317 Connector−Hose
187 791766 Line−Fuel
(Cut to Required
Length)
187A 791867 Line−Fuel
(Molded)
187B 791874 Line−Fuel
(Molded)
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

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−8Assemblies include all parts shown in frames. 06/17/2008
8
188 699479 Screw
(Control Bracket)
190 699220 Screw
(Fuel Tank)
192 694543 Ball−Rocker Arm
209 692571 Spring−Governor
219 693578 Gear−Governor
220 691724 Washer
(Governor Gear)
222D 790549 Bracket−Control
(Used Before Code
Date 06051500).
222F 793100 Bracket−Control
(Used After Code Date
06051400).
227 692573 Lever−Governor
Control
238 691300 Cap−Valve
268 691025 Control Wire Casing
(Cut to Required
Length)
269 691026 Control Wire
(Cut to Required
Length)
270 691027 Nut
(Control Wire Casing)
271 691028 Lever−Control
276 Dz271716 Washer−Sealing
281A 793122 Panel−Control
287 699629 Screw
(Dipstick Tube)
300E 791940 Muffler
(Used After Code Date
05101800).
−−−−−−− Note −−−−−
790548 Muffler
(Used Before Code
Date 05101900).
304 699598 Housing−Blower
305 699480 Screw
(Blower Housing)
306A 695710 Shield−Cylinder
307 699483 Screw
(Cylinder Shield)
307A 699234 Screw
(Cylinder Shield)
307B 790557 Screw
(Cylinder Shield)
309A 696818 Motor−Starter
Used on Type No(s).
0131, 0207.
−−−−−−− Note −−−−−
699786 Motor−Starter
Used on Type No(s).
0113, 0114, 0116,
0119, 0125.
318 690370 Screw
(Mounting Bracket)
332A 792723 Nut
(Flywheel)
333 695711 Armature−Magneto
334 699477 Screw
(Magneto Armature)
337 491055S Plug−Spark
(Resistor)
−−−−−−− Note −−−−−
691043 Plug−Spark
(EMS)
347 698338 Switch−Rocker
356C 695630 Wire−Stop
356J 692603 Wire−Stop
356L 790552 Wire−Stop
358 791797 Set−Engine Gasket
363 19203 Puller−Flywheel
365 699484 Screw
(Carburetor)
383 19374S Wrench−Spark Plug
(Oil Fill Bracket)
455 692591 Cup−Flywheel
456 692299 Plate−Pawl Friction
459 281505 Pawl−Rachet
472A 790553 Knob−Choke Shaft
472C 791948 Knob−Choke Shaft
474 694457 Alternator
−−−−−−− Note −−−−−
793640 Alternator
Used on Type No(s).
0110, 0112, 0113,
0114, 0115, 0116,
0117, 0118, 0119,
0120, 0122, 0124,
0125, 0126.
493A 695744 Bracket−Mounting
505 691251 Nut
(Governor Control
Lever)
523 693618 Dipstick
−−−−−−− Note −−−−−
790546 Dipstick
Used on Type No(s).
0116, 0117, 0118,
0119, 0120, 0121,
0940.
524 281370 Seal−Dipstick Tube
528 793006 Hose−Primer
552 692346 Bushing−Governor
Crank
562 691119 Bolt
(Governor Control
Lever)
564 699854 Screw
(Control Cover)
578A 790481 Wire Assembly
578B 791956 Wire Assembly
597 691696 Screw
(Pawl Friction Plate)
598 220624 Shim−End Play
601 791850 Clamp−Hose
604A 793134 Cover−Control
(Used After Code Date
06051400).
−−−−−−− Note −−−−−
695749 Cover−Control
(Used Before Code
Date 06051500).
604B 790473 Cover−Control
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

12D100
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3399−9Assemblies include all parts shown in frames. 06/17/2008
9
608A 699335 Starter−Rewind
613D 699209 Screw
(Muffler)
615 692576 Retainer−Governor
Shaft
616 692547 Crank−Governor
619 699480 Screw
(Cylinder Head Plate)
632 692653 Spring/Link−
Mechanical Governor
633 Dz693867 Seal−Choke/Throttle
Shaft
633A Dz691321 Seal−Choke/Throttle
Shaft
635 692076 Boot−Spark Plug
635A 692927 Boot−Sparkplug
663 699854 Screw
(Control Panel)
676A 697816 Deflector−Muffler
676D 794213 Deflector−Muffler
677A 699776 Screw
(Muffler Deflector)
689 691855 Spring−Friction
692 690572 Spring−Detent
(Choke)
718 690959 Pin−Locating
731A 794589 Hood−Snow
731B 793643 Hood−Snow
741 695087 Gear−Timing
742 692564 Retainer−E Ring
746 790278 Gear−Idler
830 694544 Stud
(Rocker Arm)
832D 793193 Guard−Muffler
836E 699854 Screw
(Muffler Guard)
842 691031 Seal−O Ring
(Dipstick Tube)
847 693617 Dipstick/Tube
Assembly
−−−−−−− Note −−−−−
790545 Dipstick/Tube
Assembly
Used on Type No(s).
0116, 0117, 0118,
0119, 0120, 0121,
0122, 0124, 0125,
0126, 0940.
851 493880 Terminal−Spark Plug
868 K∅692044 Seal−Valve
883A K691893 Gasket−Exhaust
892 791944 Switch−Key
914 699480 Screw
(Rocker Cover)
(Bottom)
914A 692557 Screw
(Rocker Cover)
(Top)
914B 697551 Screw
(Rocker Cover)
(Center)
930 696709 Guard−Rewind
957 792647 Cap−Fuel Tank
(Fresh Start)
958 698180 Valve−Fuel Shut Off
972 694260 Tank−Fuel
975 493640 Bowl−Float
976 793382 Primer−Carburetor
(Used After Code Date
06110500).
−−−−−−− Note −−−−−
790221 Primer−
Carburetor
(Used Before Code
Date 06110600).
977 792007 Gasket Set−Carburetor
990 695756 Key−Set
993 K∅694088 Gasket−Cylinder Head
Plate
996 794687 Shield−Carburetor
998 696683 Pipe−Oil
(4” Long)
−−−−−−− Note −−−−−
792928 Pipe−Oil
(2 1/2” Long)
1005 692592 Fan−Flywheel
1005A 794273 Fan−Flywheel
1011 794544 Tube−Vent
1019 792211 Kit−Label
1022 K∅691890 Gasket−Rocker Cover
1023 499924 Cover−Rocker Arm
1026 790287 Rod−Push
1029 691230 Arm−Rocker
1034 691343 Guide−Push Rod
1036 Label−Emissions
(Available From An
Authorized Briggs &
Stratton Sevice
Dealer)
1054 280275 Tie−Cable
1058 277104 Operator’s Manual
1070 699201 Screw
(Flywheel Fan)
1095 791798 Gasket Set−Valve
1119 699772 Screw
(Alternator)
1196 696692 Screw
(Snow Hood)
1196A 699854 Screw
(Snow Hood)
1210 498144 Pulley/Spring
Assembly
(Pulley)
1211 498144 Pulley/Spring
Assembly
(Spring)
1224 696824 Nut
(Carburetor Primer)
1230 699847 Screw
(Control Bracket)
1251 696699 Shield−Snow
1251A 790555 Shield−Snow
1251B 790556 Shield−Snow
1252 699234 Screw
(Snow Shield)
1252A 699632 Screw
(Snow Shield)
1319 794467 Label−Warning
1330 272147 Repair Manual
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