Briggs & Stratton 233400 to 233499 Setup guide

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All rights reserved. No part of this material may be reproduced or transmitted,
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FORM MS–7584–6/98
REPLACES FORM MS–7584–8/92
FILE IN SECT. 2 OF SERVICE MANUAL
233400 to 233499
Illustrated Parts List
Model Series
233400 to 233499
TYPE NUMBERS
0533, 0611, 0616,
0631 through 0652,
1111, 1116,
1130 through 1156,
2020 through 2061,
2520 through 2531,
2540, 2541, 2561.
TO FIND
THE CORRECT NUMBER OF THE PART YOU NEED:
FOLLOW THE INSTRUCTIONS BELOW
A. Refer to Engine Model, Type and Code Number that is stamped on the blower housing of engine.
Engine type numbers such as 0123 01 are listed only as 0123 in most instances. The two digits (01
or 02, etc.) to the right of the space may be required for more accurate parts identification in some
instances. Select the Illustrated Parts List covering the correct Model Series and Type Number.
B. Refer to the Illustrations and compare the original part with Illustration. The number next to the
illustration is the Reference Number. Assemblies include all parts shown in frames. All parts shown
in assembly frames having individual reference numbers can be purchased separately.
C. After the Reference Number has been identified, refer to the Numerical text, where Reference and
Primary Part Number are listed. THE PRIMARY PART IS USED ON ALL TYPE NUMBERS
EXCEPT THOSE TYPE NUMBERS UNDER “NOTE.”
D. If a “Note” appears below the Primary Part Number, it means that this part differs from the Primary
Part for certain types. If your Type number is listed under “Note,” order the part referred to at the
“Note.”
E. If your Engine Type Number does not appear after any part number listed under “Note,” use the
Primary Part Number.
F. For Engine Type Numbers not covered by this book, check other Parts Lists having the same
engine model or contact your source of supply.
PRINTED IN U.S.A.

233400 to 233499
7584–2 Assemblies include all parts shown in frames. 68
2
1019 LABEL KIT
13
910 383
635 6
7
5
308
306
362
11 337
645
342
REQUIRES SPECIAL TOOLS TO INSTALL.
SEE REPAIR INSTRUCTION MANUAL.
347
305
1058 OWNER’S MANUAL
724 723
722
305
1 8
552
572
870
871
869
1 395668 Cylinder Assembly
5 210580 Head–Cylinder
––––––– Note –––––
211660 Head–Cylinder
Used on Type No(s).
0638, 0643, 0647,
0648, 0650, 0652,
1131, 1135, 1137,
1146, 1149, 1150,
2027, 2031, 2527.
6 22963 Washer–Flat
7K272165 Gasket–Cylinder Head
8 495738 Breather Assembly
9K27803 Gasket–Breather
10 94621 Screw–Hex.
11 68818 Tube–Breather
13 92674 Screw–Hex.
––––––– Note –––––
94926 Screw–Hex.
Used on Type No(s).
1130, 1144, 1147,
1154, 1155.
305 94786 Screw–Hex.
306 22951 Shield–Cylinder
308 291866 Cover–Cylinder
337 298809 Plug–Spark
(1 1/2”High)
––––––– Note –––––
492167 Plug–Spark
(1 7/8”High)
802592 Plug–Spark
(Resistor Type)
(1 7/8”High)
342 298125 Plunger–Breaker
347 220197 Switch–Stop
––––––– Note –––––
29372 Switch–Stop
Used on Type No(s).
0533, 0640.
231070 Switch–Stop
Used on Type No(s).
0651, 2020, 2021,
2022, 2024, 2030,
2040, 2041, 2061,
2520, 2521, 2522,
2524, 2530, 2540,
2541, 2561.
293739 Switch–Stop
(For 2”High, 51mm
Spark Plug)
––––––– Note –––––
390785 Switch–Stop
Used on Type No(s).
0652, 1131.
362 392273 Shield–Spark Plug
(With Stop Switch)
383 89838 Wrench–Spark Plug
552 393666 Bushing–Governor-
Crank
572 291871 Guide–Control Rod
635 66538 Boot–Spark Plug
645 230775 Bushing–Plunger
722 68768 Seal–Plunger
723 93516 Retainer–Seal
724 221873 Retainer–Seal
869 21880 Seat–Valve
(Intake)
870 21612 Seat–Valve
(Exhaust)
871 231218 Bushing–Guide
(Exhaust)
1019 491256 Label Kit
1058 270373 Owner’s Manual
Nonemission Engines
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–3 Assemblies include all parts shown in frames. 68
3
27
32
31
30
593
20A
20
12
123
728
28
29
571
26
27
25 571A
12 K270789 Gasket–Bearing
Support
20 K291675 Seal–Oil
20A K391086 Seal–Oil
25 294676 Piston Assembly
(Standard)
––––––– Note –––––
294677 Piston Assy.
(.010”O.S.)
294678 Piston Assy.
(.020”O.S.)
294679 Piston Assy.
(.030”O.S.)
26 292100 Ring Set
(Standard)
––––––– Note –––––
298746 Ring Set
(Chrome Standard)
292101 Ring Set
(.010”O.S.)
292102 Ring Set
(.020”O.S.)
292103 Ring Set
(.030”O.S.)
27 68546 Lock–Piston Pin
28 298401 Pin–Piston
(Standard)
––––––– Note –––––
294681 Pin–Piston
(.005”O.S.)
29 298400 Rod–Connecting
(Standard)
––––––– Note –––––
390304 Rod–Conn.
(.020”Undersize)
30 220805 Dipper–Conn. Rod
31 22946 Lock–Rod Screw
32 230557 Screw–Conn. Rod
123 93415 Screw–Hex.
571 291672 Support–Bearing
––––––– Note –––––
291662 Support–
Bearing
Used on Type No(s).
1143.
571A 291665 Support–Bearing
(Ball Bearing)
––––––– Note –––––
291283 Support–
Bearing
(Plain Bearing)
Used on Type No(s).
1143.
291710 Support–
Bearing
(Ball Bearing)
Used on Type No(s).
0631, 0634, 0638,
0651, 1136, 1144,
1145, 1146, 1153,
1155.
593 K27349 Gasket–Bearing
Support
(.020”Thick)
––––––– Note –––––
K27374 Gasket–
Bearing Support
(.005”Thick)
K27375 Gasket–
Bearing Support
(.009”Thick)
728 94627 Screw–Hex.
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–4 Assemblies include all parts shown in frames. 68
4
377
219
17
16 554
46
24
225
591
17
45 45
35
41
40
33 34
35
553
41
40
553
40A
16 260761 Crankshaft
––––––– Note –––––
260134 Crankshaft
Used on Type No(s).
0631.
260760 Crankshaft
Used on Type No(s).
0632, 0638, 0650,
0651, 1137, 1138,
1144, 1153, 1155,
2021, 2521.
260762 Crankshaft
Used on Type No(s).
0634, 0642, 1136,
2026, 2526.
260763 Crankshaft
Used on Type No(s).
0643, 0647, 1146,
1149, 2024, 2524.
260764 Crankshaft
Used on Type No(s).
0533, 0616, 0641,
0644, 0646, 1116,
1133, 1142, 1148,
1151, 1156, 2030,
2031, 2530, 2531.
260765 Crankshaft
Used on Type No(s).
2040, 2540.
260804 Crankshaft
Used on Type No(s).
2022, 2522.
260807 Crankshaft
Used on Type No(s).
1143.
261422 Crankshaft
Used on Type No(s).
1154, 2061, 2561.
261458 Crankshaft
Used on Type No(s).
0636, 0640, 0645,
1139, 1141, 1152,
2041, 2541.
261548 Crankshaft
Used on Type No(s).
1145.
262029 Crankshaft
Used on Type No(s).
1150.
17 291667 Bearing–Ball
24 222698 Key–Flywheel
33 394436 Valve–Exhaust
34 394434 Valve–Intake
35 65906 Spring–Valve
40 292260 Retainer–Valve
40A 68293 Retainer–Valve
41 494553 Keeper–Valve
45 26670 Tappet–Valve
46 211335 Gear–Cam
219 393720 Gear–Governor
225 393467 Shaft–Governor Gear
377 91540 Key–Drive Pulley
553 62222 Seat–Valve Spring
554 66203 Shaft–Cam Gear
591 65932 Plug–Camshaft
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–5 Assemblies include all parts shown in frames. 68
5
21
525
569
15
665
558
556 568
1054
15 94239 Plug–Oil Drain
21 66768 Cap–Oil Fill
525 230472 Pipe–Oil
––––––– Note –––––
230470 Pipe–Oil
Used on Type No(s).
1143.
556 94724 Screw–Hex.
558 92268 Washer–Lock
(Used Before Code
Date 92100500).
568 291404 Base–Engine
––––––– Note –––––
294751 Base–Engine
Used on Type No(s).
0641, 1142.
298866 Base–Engine
Used on Type No(s).
0533, 0640.
569 K27351 Gasket–Base
––––––– Note –––––
27551 Gasket–Base
Used on Type No(s).
0640, 2040.
665 298860 Minder–Oil
1054 280275 Tie–Cable
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–6 Assemblies include all parts shown in frames. 68
6
109
113
102
103
104
101
114
99
95
96
93
95
98
112
111
110
119
100
97
108
90 91
94
105
107
118
158
90 293950 Carburetor
––––––– Note –––––
292106 Carburetor
Used on Type No(s).
0638, 0643, 0647,
0648, 0650, 0652,
1131, 1135, 1137,
1146, 1149, 1150,
2027, 2031, 2527,
2531.
91 291655 Body Assembly–Upper
93 23108 Bushing–Throttle Shaft
94 D292681 Valve–Idle Adjustment
95 93499 Screw–Choke/Throttle
96 223370 Valve–Throttle
97 291300 Shaft–Throttle
98 91920 Screw–Slotted
99 26157 Spring–Friction
100 212904 Stop–Throttle
101 93043 Pin–Shaft
102 D27034 Gasket–Carb. Body
103 99333 Float–Carburetor
104 D230896 Pin–Float Hinge
105 D394681 Kit–Needle Seat
––––––– Note –––––
394682 Kit–Needle
Seat
(Includes Brass Seat)
107 89915 Body Assy.–Lower
108 62872 Valve–Choke
109 89531 Shaft–Choke
110 224026 Washer–Flat
111 26155 Spring–Friction
112 23123 Screw–Shoulder
113 D395208 Nozzle–Carburetor
114 D68667 Gasket–Nozzle
118 D99525 Valve–High Speed
––––––– Note –––––
391213 Valve–High
Speed
Used on Type No(s).
0638, 0643, 0647,
0648, 0650, 0652,
1131, 1135, 1137,
1146, 1149, 1150,
2027, 2031, 2527,
2531.
119 94152 Screw–TorxRHex.
158 27590 Filter–Carburetor
Drain
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–7 Assemblies include all parts shown in frames. 68
7
642
535
445
165
643
467
166
536
51
50
51A
123
164
50 21920 Manifold–Intake
51 KD270684 Gasket–Intake
51A K27381 Gasket–Intake
123 93415 Screw–Hex.
164 299504 Pipe–Air Cleaner
––––––– Note –––––
299694 Pipe–Air
Cleaner
Used on Type No(s).
0533.
165 94289 Nut–Wing
166 394579 Stud–Air Cleaner
––––––– Note –––––
295947 Stud–Air
Cleaner
Used on Type No(s).
0533.
445 393957 Filter–Air
467 493903 Knob–Air Cleaner
535 271794 Filter–Precleaner
536 391063 Cleaner–Air
642 222271 Cover–Air Cleaner
––––––– Note –––––
497158 Cover–Air
Cleaner
Used on Type No(s).
0533.
643 222272 Retainer–Air Filter
––––––– Note –––––
280002 Retainer–Air
Filter
Used on Type No(s).
0533.
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–8 Assemblies include all parts shown in frames. 68
8
212
206A
204
209
232
223
614
230
206
594
562
592
233
616
208 227
204 23849 Collar–Bell Crank
206 93422 Nut–Hex.
206A 21772 Nut–Governor
Adjusting
208 393613 Rod–Gov. Control
209 26764 Spring–Governor
212 26725 Link–Throttle
223 22814 Crank–Bell
(Furnished by Equip.
Manufacturer.)
Used on Type No(s).
0533, 0640.
227 291365 Lever–Governor
––––––– Note –––––
298399 Lever–Gov.
Used on Type No(s).
1111, 1133, 1136,
1164, 1170, 2520,
2528, 2561, 2580.
230 22826 Washer–Flat
232 260584 Spring–Link
233 93879 Spacer
562 92613 Bolt–Governor Lever
592 231082 Nut–Hex.
594 94905 Screw–TorxRHex.
614 93306 Pin–Cotter
616 291364 Crank–Governor
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–9 Assemblies include all parts shown in frames. 68
9
601
240A
186
187A
186A
243
247
245
266
270
268
269
271
587
187
242
241
240
246
917
186 67218 Connector–Hose
(For Flexible Tubing.)
––––––– Note –––––
63377 Connector–
Hose
(For Metal Fuel Pipe.)
186A 230318 Connector–Hose
––––––– Note –––––
231238 Connector–
Hose
(For Metal Fuel Line)
187 296004 Line–Fuel
(Cut to Required
Length)
187A 291704 Line–Fuel
(Metal 18”Long)
––––––– Note –––––
89248 Line–Fuel
(Metal, 2 1/4”Long)
92655 Tee/Fuel Pipe
Used on Type No(s).
0638, 0643, 0647,
0648, 2027, 2031.
231282 Connector–
Hose
Used on Type No(s).
0650, 0652, 1131,
1135, 1137, 1146,
1149, 1150, 2527.
240 393169 Filter–Fuel
240A 298090 Filter–Fuel
241 296005 Cover–Filter
(Used With Flexible
Fuel Line)
––––––– Note –––––
99909 Cover–Filter
(Used With Metal Fuel
Line)
242 295913 Valve–Shut-Off
243 22547 Screen–Filter
245 K68477 Gasket–Bowl
246 298683 Bowl–Filter
247 99665 Yoke–Bowl
266 494554 Control–Throttle
268 65616 Casing–Wire
(Cut to Required
Length)
269 26633 Wire–Control
(Cut to Required
Length)
270 63426 Locknut–Casing
271 290568 Lever–Control
587 220162 Clamp–Cable
601 93053 Clamp–Hose
917 223271 Handle–Shutoff
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

233400 to 233499
7584–10 Assemblies include all parts shown in frames. 68
10
181
184
185
183
917 198
199
728
196
182
186A
180
180 291488 Tank–Fuel
(6 Quart)
––––––– Note –––––
291513 Tank–Fuel
(Gasoline–Kerosene)
Used on Type No(s).
0638, 0643, 0647,
0648, 0650, 0652,
1131, 1135, 1137,
1146, 1149, 1150,
2027, 2031, 2527,
2531.
292415 Tank–Fuel
(8 Quart)
Used on Type No(s).
0533, 0639, 0640,
1134, 1141.
181 392305 Cap–Fuel Tank
(Metal)
182 22813 Bracket–Fuel Tank
183 291490 Strap–Fuel Tank
184 91257 Screw–Slotted
185 90970 Nut–Square
186A 230318 Connector–Hose
(Used With Flexible
Fuel Pipe)
––––––– Note –––––
231238 Connector–
Hose
(For Metal
Fuel Line)
196 22907 Bracket–Fuel Tank
198 293934 Screw–Shut-Off
199 297563 Valve–Shut Off
728 94627 Screw–Hex.
917 223271 Handle–Shut-Off
Valve
KIncluded in Gasket Set–See Ref. No. 291728. DIncluded in Carburetor Kit–Part No. 395670.
REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION