Briggs & Stratton 126T00 Series Setup guide

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PRINTED IN U.S.A.
FORM MS−3728−07/14/2008
REPLACES FORM MS−3728−05/21/2008
FILE IN SECT. 2 OF SERVICE MANUAL
126T00
Illustrated Parts List
Model Series
126T00
TYPE NUMBERS
0004 through 4830.
TABLE OF CONTENTS
Air Cleaner 4. . . . . . . . . . . . . . . . . . . . . . . . .
Blower Housing/Shrouds 6. . . . . . . . . . . .
Camshaft 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Carburetor 3. . . . . . . . . . . . . . . . . . . . . . . . .
Controls 5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft 2. . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric Starter 7. . . . . . . . . . . . . . . . . . . . . .
Electrical 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Sump 2. . . . . . . . . . . . . . . . . . . . . . .
Exhaust System 4. . . . . . . . . . . . . . . . . . . .
Flywheel 7. . . . . . . . . . . . . . . . . . . . . . . . . . .
Flywheel Brake 5. . . . . . . . . . . . . . . . . . . . .
Fuel Supply 3. . . . . . . . . . . . . . . . . . . . . . . .
Governor Spring 5. . . . . . . . . . . . . . . . . . . .
Ignition 5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kits/Gaskets 2 & 3. . . . . . . . . . . . . . . . . . . . . . . .
Lubrication 2. . . . . . . . . . . . . . . . . . . . . . . .
Piston Group 2. . . . . . . . . . . . . . . . . . . . . . .
Rewind Starter 7. . . . . . . . . . . . . . . . . . . . . .
Valves 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−2Assemblies include all parts shown in frames. 07/14/2008
2
10
3
128
9
718
307
306
383
635
337
13 5
7
11
33
36
40
22 20
15
12
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
585
668
32
32A
27
26
27
25
29
28
24
146
741
16
43
46
870
869
871
306A 684
585
584
868
51A
50A
54
51A
1019 LABEL KIT
1330 REPAIR MANUAL
1058 OPERATOR’S MANUAL
1319 WARNING LABEL
REQUIRED when replacing parts
with warning labels affixed.

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−3Assemblies include all parts shown in frames. 07/14/2008
3
118
97
975
133
134
125
PRIMER SYSTEM
617
95
130
633
127
163
276
137
104
365
276
276 117
97
975
133
134
617
95
130
633
163
276
137
104
365
276
276
CHOKE SYSTEM
108
692
633A
125A
109A
127
118A
117A
AUTOCHOKE SYSTEM
97
975
133
134
617
231
130
633
163
276
137
104
276
108A
633A
125B 109B
127
117B
276
118B
601
187
670
190
972B
1059
134
121 CARBURETOR OVERHAUL KIT
977 CARBURETOR GASKET SET
163
137 276
104
127
137
163
633
617
633A
276
617
633
633A
957B
187A
601
130A 130A
601A
958
633
217
109

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−4Assemblies include all parts shown in frames. 07/14/2008
4
613
81
883
443A
445A
967A
968B
425A
300
832
836
1387
1388
1386
883
291
976
163
529
966B
677
676 676C
677
346
994
300A
613A
81
836
832B
832A
836B
836
832E
836C
676E
677
994B
346
676D
677

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−5Assemblies include all parts shown in frames. 07/14/2008
5
616
404
615
505
562
202
188
265
267
270
271
268
227
222D
668
269
621
922
745
923
1160
851
334
356
935
333
621
222
668
922A
923A
236
789B
578
910
474
1119
497
627A
851A
635A
333A
356H
98A
222A
621
668
222C
621
668
222E
668
843A
843
265A 265B
209B
497
347
627
356D
356B
990
664
500
892
356G
209A
578A
356J
923B 621 922A

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−6Assemblies include all parts shown in frames. 07/14/2008
6
969
921G
604B
564B
921B
969
604C
564B
921F
969
921J
969A
564
604
703
949
563
997
921C
969A
921E
969
921H
969A
921K
969A
921L
969A
921N
969A
921P
969A
921R
969A
921U
969A
564B
604D
930
921M
969A

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−7Assemblies include all parts shown in frames. 07/14/2008
7
60
58
592
65
597
456
689
459
1210
1211
55
608
363
23A
455
332
1005
310
802
803
544
801
783A
651
513
785
784
783
937
742
309
545
510
853
946
853
697
783A
651
513
785
784
783
937
742
510
309A
305
304
78
37
1036 EMISSIONS LABEL
925

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−8Assemblies include all parts shown in frames. 07/14/2008
8
1 697322 Cylinder Assembly
2 399269 Kit−Bushing/Seal
(Magneto Side)
3K299819S Seal−Oil
(Magneto Side)
4 493279 Sump−Engine
−−−−−−− Note −−−−−
498983 Sump−Engine
Used on Type No(s).
0006, 0007, 0122.
5 691160 Head−Cylinder
7K∅692249 Gasket−Cylinder Head
8 695250 Breather Assembly
9K∅696125 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)
16 691450 Crankshaft
−−−−−−− Note −−−−−
691451 Crankshaft
Used on Type No(s).
0004, 0010, 0011,
0015, 0050, 0060,
0121, 0135, 0138,
0148, 0153, 0158,
0159, 0169, 0172,
0173, 0199, 0243,
0329, 0454, 0475,
0479, 0487, 0491,
0555, 0615, 0660,
0826, 1064, 1172,
1724, 1728, 1729,
1750, 1767, 1791,
1802, 1807, 1817,
1820, 1822, 1824,
1833, 1963, 2003,
2004, 2011, 2016,
2021, 2022, 2034,
2041, 2091, 2388.
691452 Crankshaft
Used on Type No(s).
0007, 0016, 0122,
0147, 0150, 0151,
0154, 0163, 0164,
0168, 0242, 0568,
0680, 0878, 1727,
1733, 1734, 1737,
1738, 1739, 1740,
1748, 1749, 1794,
1801, 1803, 1804,
1805, 1808, 1810,
1814, 1816, 1818,
1821, 1823, 1825,
1826, 1827, 1829,
1830, 1831, 1832,
1835, 1837, 1839,
1844, 1845, 1846,
1847, 1849, 1852,
1853, 1904, 1914,
1917, 1926, 1941,
1958, 1965, 1966,
1992, 1995, 2006,
2008, 2010, 2112,
2014, 2015, 2017,
2023, 2027, 2035,
2148, 2149, 2304,
4135, 4825, 4830.
691455 Crankshaft
Used on Type No(s).
0006, 0018, 0523.
694849 Crankshaft
Used on Type No(s).
0005, 0114, 0131,
0179, 0188, 2013.
695242 Crankshaft
Used on Type No(s).
0026.
696009 Crankshaft
Used on Type No(s).
0031, 0115, 0139,
0181, 0182, 0183,
0184, 0204, 0206,
0216, 0219, 0220,
0224, 0231, 0233,
0236, 0240, 0241,
0329, 0678, 0933,
1840, 1841.
791061 Crankshaft
Used on Type No(s).
0030, 0116, 0209,
0225, 0227, 0230,
0234, 0237.
694478 Crankshaft
Used on Type No(s).
0521, 0538.
691454 Crankshaft
Used on Type No(s).
1706.
694079 Crankshaft
Used on Type No(s).
1701.
795499 Crankshaft
Used on Type No(s).
0222, 0256.
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

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−9Assemblies include all parts shown in frames. 07/14/2008
9
20 K399781S Seal−Oil
(PTO Side)
22 691092 Screw
(Crankcase Cover/
Sump)
23A 691987 Flywheel
−−−−−−− Note −−−−−
691992 Flywheel
Used on Type No(s).
0004, 0005, 0006,
0007, 0010, 0030,
0050, 0114, 0116,
0122, 0131, 0164,
0169, 0179, 0188,
0209, 0222, 0225,
0227, 0230, 0234,
0237, 0256, 0523,
0826, 0933, 1064,
1137, 1802, 1807,
1822, 1849, 2013,
2016.
24 222698S Key−Flywheel
25 795429 Piston Assembly
(Standard)
(Used After Code Date
07090300).
−−−−−−− Note −−−−−
791097 Piston
Assembly
(Standard)
(Used Before Code
Date 07090400).
795430 Piston
Assembly
(.020” Oversize)
(Used After Code Date
07090300).
791326 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 Before Code
Date 07090400).
795432 Ring Set
(.020” Oversize)
(Used After Code Date
07090300).
791324 Ring Set
(.020” Oversize)
(Used Before Code
Date 07090400).
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)
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
50A 794305 Manifold−Intake
51 K272199S Gasket−Intake
51A K794306 Gasket−Intake
54 691650 Screw
(Intake Manifold)
55 691421 Housing−Rewind
Starter
58 697316 Rope−Starter
(Cut To Required
Length)
−−−−−−− Note −−−−−
791362 Rope−Starter
Used on Type No(s).
0132, 0133, 0143,
0144, 0165, 0166,
0175, 0181, 0234.
60 281434S Grip−Starter Rope
65 690837 Screw
(Rewind Starter)
78 691108 Screw
(Flywheel Guard)
81 691740 Lock−Muffler Screw
95 691636 Screw
(Throttle Valve)
97 493267 Shaft−Throttle
(Metal)
−−−−−−− Note −−−−−
696565 Shaft−Throttle
(Plastic)
795881 Shaft−Throttle
Used on Type No(s).
0007, 0122.
98A 493280 Kit−Idle Speed
104 D691242 Pin−Float Hinge
108 691182 Valve−Choke
108A 795935 Valve−Choke
(Used After Code Date
08031200).
−−−−−−− Note −−−−−
790844 Valve−Choke
(Used Before Code
Date 08031300).
109 494218 Shaft−Choke
109A 498593 Shaft−Choke
109B 795936 Shaft−Choke
(Used After Code Date
08031200).
−−−−−−− Note −−−−−
790843 Shaft−Choke
(Used Before Code
Date 08031300).
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

126T00
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
3728−10 Assemblies include all parts shown in frames. 07/14/2008
10
117 498978 Jet−Main
(Standard)
−−−−−−−Note −−−−−
692677 Jet−Main
(Standard)
(Used After Code Date
07020600).
Used on Type No(s).
0154, 0680, 0761,
1749, 1837, 1850,
1917, 2035, 3761.
494870 Jet−Main
(Standard)
(Used Before Code
Date 07020700).
Used on Type No(s).
0761, 3761.
117A 498981 Jet−Main
(Standard)
−−−−−−− Note −−−−−
697355 Jet−Main
(Standard)
Used on Type No(s).
0007, 0122.
117B 691428 Jet−Main
(Standard)
(Used After Code Date
07020600).
−−−−−−− Note −−−−−
697355 Jet−Main
(Standard)
(Used Before Code
Date 07020700).
118 497466 Jet−Main
(High Altitude)
−−−−−−− Note −−−−−
497315 Jet−Main
(High Altitude)
Used on Type No(s).
0154, 0680, 0761,
1749, 1837, 1850,
1917, 2035, 3761.
118A 497315 Jet−Main
(High Altitude)
−−−−−−− Note −−−−−
692677 Jet−Main
(High Altitude)
Used on Type No(s).
0007, 0122.
118B 695042 Jet−Main
(High Altitude)
(Used After Code Date
07020600).
−−−−−−− Note −−−−−
692677 Jet−Main
(High Altitude)
(Used Before Code
Date 07020700).
121 498260 Kit−Carburetor
Overhaul
125 498170 Carburetor
(Primer System)
−−−−−−− Note −−−−−
694882 Carburetor
(Primer System)
(Used After Code Date
07020600).
Used on Type No(s).
0154, 0680, 0761,
1749, 1837, 1850,
1917, 2035, 3761.
790821 Carburetor
(Primer System)
(Used Before Code
Date 07020700).
Used on Type No(s).
0761, 3761.
125A 792253 Carburetor
(Choke System)
−−−−−−− Note −−−−−
790978 Carburetor
Used on Type No(s).
1746, 1801, 1802,
1803, 1804, 1805.
795882 Carburetor
Used on Type No(s).
0007, 0122.
125B 794304 Carburetor
(Autochoke System)
(Used After Code Date
07020600).
−−−−−−− Note −−−−−
790845 Carburetor
(Used Before Code
Date 07020700).
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