Briggs & Stratton 21A900 Series User Manual

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,
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in writing from Briggs & Stratton Corporation.
PRINTED IN U.S.A.
FORM MS−5069−06/17/2008
REPLACES FORM MS−5069−02/07/08
FILE IN SECT. 2 OF SERVICE MANUAL
21A900
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. . . . . . . . . . . . . . . . . . . . . .

Briggs & Stratton 21A900 Series Specifications

General

Fuel Type	Unleaded Gasoline
Governor Type	Mechanical
Displacement	344 cc
Starting System	Recoil
PTO Shaft Rotation	Counterclockwise (viewed from PTO shaft end)
Oil Type	SAE 30
Spark Plug Gap	0.030 in (0.76 mm)
Engine Type	4-Stroke, Air-Cooled, OHV (Overhead Valve)
Cylinder	Single

Summary

Operational & Safety Information

Operator's Manual Reference

Reference to the operator's manual for essential operating instructions.

Warning Label Details

Details and placement of critical safety warning labels for engine operation.