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
Page 2
Not for
Reproduction
31R900
28
25
26
27
46
45
1036 EMISSIONS LABEL
29
32
27
306
307
16
377
306A
1058 OPERATOR’S MANUAL
1
2
3
718
6
13
16A
24
24
377
758
757
1319 WARNING LABEL
552
691
1270
759
684
584
9
43
11
850
1264
1263
1024A
965
943
847
523
842
525
524
847A
523
525A
842
524
741
512
186A
357
741
750
4C
4A
4
19
1017
20
415
1027
12
20
22
12
15
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
10488--2Assemblies include all parts shown in frames.10/09/2015
2
Page 3
Not for
Reproduction
31R900
914
850
1023
53
1022
654
307
5
192
306A
238
830
1029
50A
1034
51A
1022
617
883
186
832
53
51
33
42
34
13
868
42
36
7
35
51
51A
617
50B
51
51A
617
51A
54
50
415
1026
337
635
383
415
654
45
617
54
51
832A
836
676
300B
883
864
883
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
677
823
676A
613B
677A
677
994676B
81
377
613
613B
300
883
864
883
823
832B
613
81
613A
10488--3Assemblies include all parts shown in frames.10/09/2015
3
Page 4
Not for
Reproduction
31R900
125
131A
130A
95A
633B
51
133A
975A
141
108B
105A
104A
137A
634B
217
633
98A
127A
135
137A
187
94A
1091
117
601
118
422A
51
318
121A CARBURETOR OVERHAUL KIT
112
1478
951
216A
137A
127A
1479A
1479
98A
187
240
1127
601
276A
947A
276A
240A
187A
NIKKI
240B
601
187B
387A
601
104A
105A
51A
187D
1139
773
601
633B
633
617
918
601
1266
1266A
217
276A
958
601
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
10488--4Assemblies include all parts shown in frames.10/09/2015
4
Page 5
Not for
Reproduction
304G
968B
31R900
1040
445B
1040B
431B
1266
964
1139
773
967B
305C
78
608
455
305
305B
324
65
415A
1044
37
1005
363
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
10488--5Assemblies include all parts shown in frames.10/09/2015
5
23
37A
1051
783
78A
24
Page 6
Not for
Reproduction
31R900
1119
422A
DUAL CIRCUIT
474B
877
878
318
1059
951
878A
112
216A
TRI--CIRUIT
474C
877A
5/9 AMP
1478
1479A
1059
1479
526A
501A
501E
526B
729A
521
1054
789
877D
789B
729
789E
356B
333
1448
851
309
510
1051
783
513
579
462
697
801
1090
802
310
503
789C
616
216
404
614
202
232
227
562
269
268
271
505
222
209
333A
188
270
559
334
265
267
559A
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
10488--6Assemblies include all parts shown in frames.10/09/2015
6
Page 7
Not for
Reproduction
51
121A CARBURETOR OVERHAUL KIT
137A
127A
31R900
98A
104A
105A
51A
633B
633
617
12
3
7
1266
1266A
217
276A
358 ENGINE GASKET SET
20
51
51A
524
9
617
691
842
868
883
943
1022
1266
1266A
1095 VALVE GASKET SET
7
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
10488--7Assemblies include all parts shown in frames.10/09/2015
Used on Type No(s).
0010, 0014, 0015,
0017, 0018, 0019,
0020, 0024, 0026,
0031, 0033, 0035,
0037, 0038, 0041,
0042, 0043, 0046.
591760 Flywheel
Used on Type No(s).
0002, 0003, 0006,
0007, 0013, 0016,
0022, 0027, 0044,
0045, 0047.
591761 Flywheel
Used on Type No(s).
0029.
24591757 Key--Flywheel
25594435 Piston Assembly
(Standard)
(Used After Code Date
14100500).
-- -- -- -- -- -- N o t e -- -- -- -- -- --
796172 Piston
Assembly
(Used Before Code
Date 14100600).
594435 Piston
Assembly
(Used After Code Date
14093000).
Used on Type No(s).
0039.
796172 Pi
As
(Used Before Code
Date 14100100).
Used on Type No(s).
0039.
594435 Piston
Assembly
(Used After Code Date
15030100).
Used on Type No(s).
0014, 0015, 0024,
0018, 0019, 0025,
0031.
ston
sembly
796172 Piston
Assembly
(Used Before Code
Date 15030200).
Used on Type No(s).
0014, 0015, 0024,
0018, 0019, 0025,
0031.
594436 Piston
Assembly
(.020” Oversize)
(Used After Code Date
14100500).
796173 Piston
Assembly
(.020” Oversize)
(Used Before Code
Date 14100600).
594436 Piston
Assembly
(.020” Oversize)
(Used After Code Date
14093000).
Used on Type No(s).
0039.
796173 Piston
Assembly
(.020” Oversize)
(Used Before Code
Date 14100100).
Used on Type No(s).
0039.
594436 Piston
Assembly
(.020” Oversize)
(Used After Code Date
15030100).
Used on Type No(s).
0014, 0015, 0024,
0018, 0019, 0025,
0031.
796173 Piston
Assembly
(.020” Oversize)
(Used Before Code
Date 15030200).
Used on Type No(s).
0014, 0015, 0024,
0018, 0019, 0025,
0031.
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
10488--8Assemblies include all parts shown in frames.10/09/2015
192691986 Adjuster--Rocker Arm
202691841 Link--Mechanical
Governor
209796260 Spring--Governor
(Green)
-- -- -- -- -- -- N o t e -- -- -- -- -- --
690576 Spring--
Governor
(Gold)
Used on Type No(s).
0009, 0023, 0036,
0040.
796261 Spring-Governor
(Yellow)
Used on Type No(s).
0012, 0035.
792602 Spring-Governor
(Red)
Used on Type No(s).
0016, 0028, 0030,
0032, 0045.
260902 Spring-Governor
(Natural)
Used on Type No(s).
(Used Before Code
Date 14100600).
594443 Counterweight
(Used After Code Date
14093000).
Used on Type No(s).
0003, 0010, 0011,
0013, 0016, 0030,
0035, 0039.
793763 Counterweight
(Used Before Code
Date 14100100).
Used on Type No(s).
0003, 0010, 0011,
0013, 0016, 0030,
0035, 0039.
594443 Counterweight
(Used After Code Date
15030100).
Used on Type No(s).
0014, 0015, 0018,
0019, 0024, 0025,
0031.
793763 Counterweight
(Used Before Code
Date 15030200).
Used on Type No(s).
0014, 0015, 0018,
0019, 0024, 0025,