Briggs & Stratton 12V800 Series Setup guide

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in any form or by any means, electronic or mechanical, including photocopying,
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PRINTED IN U.S.A.
FORM MS−0875−12/05/2007
REPLACES FORM MS−0875−09/10/2007
FILE IN SECT. 2 OF SERVICE MANUAL
12V800
Illustrated Parts List
Model Series
12V800
TYPE NUMBERS
0109 through 3118.
TABLE OF CONTENTS
Alternator 6. . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner 4. . . . . . . . . . . . . . . . . . . . . . . . .
Blower Housing/Shrouds 5. . . . . . . . . . . .
Camshaft 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Carburetor 3. . . . . . . . . . . . . . . . . . . . . . . . .
Controls 4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft 2. . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric Starter 6. . . . . . . . . . . . . . . . . . . . . .
Electrical 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Sump 2. . . . . . . . . . . . . . . . . . . . . . .
Exhaust System 4. . . . . . . . . . . . . . . . . . . .
Flywheel 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Flywheel Brake 6. . . . . . . . . . . . . . . . . . . . .
Fuel Supply 3. . . . . . . . . . . . . . . . . . . . . . . .
Governor Spring 4. . . . . . . . . . . . . . . . . . . .
Ignition 6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kits/Gaskets 2 & 3. . . . . . . . . . . . . . . . . . . . . . . .
Lubrication 2. . . . . . . . . . . . . . . . . . . . . . . .
Piston Group 2. . . . . . . . . . . . . . . . . . . . . . .
Rewind Starter 5. . . . . . . . . . . . . . . . . . . . . .
Valves 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−2Assemblies include all parts shown in frames. 12/05/2007
2
10
3
128
9
718
307
306
383
635
337
13 5
7
51
54
50
11
33
36
40
15A
20A
20
15
22
20
15
12
12
4A
4
847
523
287
524
525
842
9
883
1095 VALVE GASKET SET
7
45
34
35
40 45
12
9
7
3
358 ENGINE GASKET SET
883
842
617
524
163
51
20
20A
585
668
32
32A
27
26
27
25
29
28
83
743
101
721
715
24
146
741
16
43
46
374
46A
374
870
869
871
684585
584
868
1019 LABEL KIT
1330 REPAIR MANUAL
1058 OPERATOR’S MANUAL
1319 WARNING LABEL
REQUIRED when replacing parts
with warning labels affixed.

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−3Assemblies include all parts shown in frames. 12/05/2007
3
117 276 118 276
134
97
975
133
134
125
PRIMER SYSTEM
617
95
130
633
127
163
276
137
104
365
121 CARBURETOR OVERHAUL KIT 977 CARBURETOR GASKET SET
163
137 276
104
127
137
163
633
617
276
617
633
670
190
240
601
187C
187
187B
187A
601
601A
601
601
972B
1059
957A
957B 957B

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−4Assemblies include all parts shown in frames. 12/05/2007
4
346
613
81
883
163
11A
259
443
445
967
968A
425
968
976
966
425
300 300A
676D
832C 832A
994
613A
81
836
677
836
616
404
615
505
562
202
188
843
265
267
270
271
268
227
222F
668
269 265A
267
209B
832D
836

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−5Assemblies include all parts shown in frames. 12/05/2007
5
930A
921D
969
969A
305
304
78
37
1036 EMISSIONS LABEL
921A 60
58
592
65
597
456
689
459
1210
1211
55
608
363
23A
455
332
1005

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−6Assemblies include all parts shown in frames. 12/05/2007
6
621
922
745
923
990A
1160
851
334
910
474
1119
356
935
333
789A
1236
1009
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

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−7Assemblies include all parts shown in frames. 12/05/2007
7
1 697322 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).
1783.
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
11A 691934 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).
691452 Crankshaft
(Used After Code Date
97011200).
Used on Type No(s).
0630,0631,0666,0668,
1085,1766,1767,1777,
1778,1779,1780.
694059 Crankshaft
(Used Before Code
Date 97011300).
Used on Type No(s).
0630,0631,0666,0668.
691450 Crankshaft
(Used After Code Date
97011200).
Used on Type No(s).
0109,0180,0181,0183,
0191,1081,1091.
694440 Crankshaft
(Used Before Code
Date 97011300).
Used on Type No(s).
0109,0180,0181,0183.
691454 Crankshaft
(Used After Code Date
97011200).
Used on Type No(s).
0182.
692000 Crankshaft
(Used Before Code
Date 97011300).
Used on Type No(s).
0182.
692994 Crankshaft
(Used After Code Date
97011200).
Used on Type No(s).
0625,1741,3118.
498878 Crankshaft
(Used Before Code
Date 97011300).
Used on Type No(s).
1741.
691455 Crankshaft
Used on Type No(s).
1092.
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).
0667, 0668, 1731,
1734, 1767.
696291 Flywheel
Used on Type No(s).
1783.
24 222698S Key−Flywheel
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

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−8Assemblies include all parts shown in frames. 12/05/2007
8
25 795429 Piston Assembly
(Standard)
(Used After Code Date
07090300).
−−−−−−− Note −−−−−
791097 Piston
Assembly
(Standard)
(Used After Code Date
04031400 and Before
Code Date 07090400).
493262 Piston
Assembly
(Standard)
(Used Before Code
Date 97011300).
795430 Piston
Assembly
(.020” Oversize)
(Used After Code Date
07090300).
791326 Piston
Assembly
(.020” Oversize)
(Used After Code Date
04102100 and Before
Code Date 07040400).
499431 Piston
Assembly
(.020” Oversize)
(Used After Code Date
97011200 and Before
Code Date 04102200).
493386 Piston
Assembly
(.020” Oversize)
(Used Before Code
Date 97011300).
493387 Piston
Assembly
(.030” 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
Pin
(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)
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

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−9Assemblies include all parts shown in frames. 12/05/2007
9
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
(Used After Code Date
96060200).
−−−−−−− Note −−−−−
492830 Camshaft
(Used Before Code
Date 96060300).
46A 691459 Camshaft
(Counterclockwise)
(Used After Code Date
96060200).
50 497465 Manifold−Intake
51 K272199S Gasket−Intake
54 691650 Screw
(Intake Manifold)
55 691421 Housing−Rewind
Starter
58 697316 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
95 691636 Screw
(Throttle Valve)
97 493267 Shaft−Throttle
(Metal)
−−−−−−− Note −−−−−
696565 Shaft−Throttle
(Plastic)
101 691623 Pin−Shaft
104 D691242 Pin−Float Hinge
117 494870 Jet−Main
(Standard)
(Used After Code Date
02092900).
−−−−−−− Note −−−−−
498975 Jet−Main
(Standard)
(Used After Code Date
96060200 and Before
Code Date 02093000).
497466 Jet−Main
(Standard)
(Used After Code Date
95102900 and Before
Code Date 96060300).
494870 Jet−Main
(Standard)
(Used Before Code
Date 95103000).
118 497315 Jet−Main
(High Altitude)
(Used After Code Date
02092900).
−−−−−−− Note −−−−−
497348 Jet−Main
(High Altitude)
(Used After Code Date
96060200 and Before
Code Date 02093000).
497315 Jet−Main
(High Altitude)
(Used Before Code
Date 95103000).
121 498260 Kit−Carburetor
Overhaul
125 698444 Carburetor
(Used After Code Date
96060200).
−−−−−−− Note −−−−−
498254 Carburetor
(Used Before Code
Date 96060300).
127 D694468 Plug−Welch
130 691203 Valve−Throttle
−−−−−−− Note −−−−−
696564 Valve−Throttle
(Used With Plastic
Throttle Shaft)
133 398187 Float−Carburetor
134 D398188 Kit−Needle/Seat
137 Dz693981 Gasket−Float Bowl
146 690979 Key−Timing
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).
187C 791875 Line−Fuel
(Molded)
188 690877 Screw
(Control Bracket)
190 690940 Screw
(Fuel Tank)
202 691829 Link−Mechanical
Governor
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

12V800
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
0875−10 Assemblies include all parts shown in frames. 12/05/2007
10
209B 699056 Spring−Governor
−−−−−−−Note −−−−−
691851 Spring−
Governor
Used on Type No(s).
0180, 0181, 0183,
0191, 0668, 1081,
1091, 1092.
691292 Spring−
Governor
Used on Type No(s).
0182, 0630, 0631,
0666, 0667, 1085,
1731, 1733, 1766,
1767, 1777.
691852 Spring−
Governor
Used on Type No(s).
1734.
222F 691436 Bracket−Control
(Remote/Manual
Friction)
(Compliance)
240 298090S Filter−Fuel
259 691189 Bracket−Casing Clamp
265 690798 Clamp−Casing
265A 691024 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
276 Dz271716 Washer−Sealing
287 690940 Screw
(Dipstick Tube)
300 692038 Muffler
(Tuned)
300A 494343S Muffler
(Square Lo Tone)
304 493293 Housing−Blower
−−−−−−− Note −−−−−
493294 Housing−
Blower
Used on Type No(s).
0181, 0183, 0191,
0667, 0668, 1092,
1731, 1734.
695892 Housing−
Blower
Used on Type No(s).
1787, 1788.
696298 Housing−
Blower
Used on Type No(s).
1783.
305 691108 Screw
(Blower Housing)
306 690450 Shield−Cylinder
307 690345 Screw
309 695550 Motor−Starter
(Used Before Code
Date 07052900).
309A 795092 Motor−Starter
(Used After Code Date
07052800).
(Cylinder Shield)
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 Puller−Flywheel
365 691688 Screw
(Carburetor)
383 89838S Wrench−Spark Plug
404 690272 Washer
(Governor Crank)
425 691135 Screw
(Air Cleaner Cover)
443 690349 Screw
(Air Cleaner Primer
Base)
445 497725S Filter−Air Cleaner
Cartridge
455 791960 Cup−Flywheel
456 692299 Plate−Pawl Friction
459 281505S Pawl−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
544 690786 Armature−Starter
545 492919 Washer Set
(Starter Motor)
562 92613 Bolt
(Governor Control
Lever)
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
608 497680 Starter−Rewind
613 691340 Screw
(Muffler)
613A 691653 Screw
(Muffler)
615 690340 Retainer−Governor
Shaft
616 698801 Crank−Governor
617Dz270344S Seal−O Ring
(Intake Manifold)
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