Briggs Stratton Air Cleaner 21A900 User Manual

FORM MS506906/17/2008  
REPLACES FORM MS506902/07/08  
FILE IN SECT. 2 OF2SE1RVAICE9MA0NU0AL  
Illustrated Parts List  
Model Series  
21A900  
TYPE NUMBERS  
0101 through 0199.  
TABLE OF CONTENTS  
Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Blower Housing . . . . . . . . . . . . . . . . . . . . . 7  
Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 6  
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . 4  
Electric Starter . . . . . . . . . . . . . . . . . . . . . . 8  
Engine Sump . . . . . . . . . . . . . . . . . . . . . . . 2  
Exhaust System . . . . . . . . . . . . . . . . . . . . 7  
Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
Fuel Supply . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Gasket Set Engine . . . . . . . . . . . . . . . . . 4  
Gasket Set Valve . . . . . . . . . . . . . . . . . . 4  
Governor Spring . . . . . . . . . . . . . . . . . . . . 9  
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Intake Manifold . . . . . . . . . . . . . . . . . . . . . 4  
Kit Carburetor Overhaul . . . . . . . . . . . . 5  
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Operator’s Manual . . . . . . . . . . . . . . . . . . 2  
Piston, Rings, Connecting Rod . . . . . . . 3  
Rewind Starter . . . . . . . . . . . . . . . . . . . . . . 8  
Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Warning Label . . . . . . . . . . . . . . . . . . . . . . 2  
PRINTED IN U.S.A.  
COPYRIGHT by BRIGGS & STRATTON CORPORATION  
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.  
 
21A900  
25  
26  
27  
28  
27  
32  
29  
847  
523  
842  
16  
46  
45  
24  
525  
146  
357  
524  
741  
43  
758  
1270  
759  
757  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
50693  
Assemblies include all parts shown in frames.  
06/17/2008  
3
 
21A900  
45  
1026  
5
34  
42  
868  
36  
238  
33  
42  
337  
7
883  
635  
383  
35  
1022  
1034  
830  
51  
617  
1029  
192  
1022  
914  
654  
53  
1023  
14  
51  
50  
617  
705  
13  
850  
54  
358 ENGINE GASKET SET  
943  
3
7
12  
1022  
1095 VALVE GASKET SET  
868  
20  
691  
842  
7
51  
524  
617  
1266  
1022  
868  
883  
1266A  
9
51  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
50694  
Assemblies include all parts shown in frames.  
06/17/2008  
4
 
21A900  
125  
141  
141  
See text  
for correct  
Choke  
Shaft Kit.  
131  
634  
108  
141B  
See text  
for correct  
Choke  
141B  
130  
95  
Shaft Kit.  
987  
93  
98  
692  
633  
108  
94  
51  
1091  
142  
143  
LMT / PART  
NUMBER  
127  
106  
LOCATIONS  
133  
105  
104  
975  
137  
276  
950  
WALBRO  
121 CARBURETOR OVERHAUL KIT  
51  
987  
137  
104  
105  
617  
142  
106  
1266  
93  
95  
634  
1266A  
127  
276  
977 CARBURETOR GASKET SET  
51  
137  
276  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
50695  
Assemblies include all parts shown in frames.  
06/17/2008  
5
 
21A900  
125A  
141A  
634A  
131A  
117  
118  
108A  
130A  
95A  
987A  
51  
98A  
94A  
1091  
105A  
104A  
127A  
133A  
137A  
135A  
137A  
975A  
137A  
1127  
NIKKI  
121ACARBURETOR OVERHAUL KIT  
987A  
51  
137A  
105A  
1266  
95A  
127A  
1266A  
104A  
617  
634A  
977ACARBURETOR GASKET SET  
137A  
51  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
50696  
Assemblies include all parts shown in frames.  
06/17/2008  
6