Briggs Stratton Lawn Mower 12E300 User Manual

FORM MS575006/18/2008  
REPLACES FORM MS575006/24/2008  
FILE IN SECT. 2 OF SERVICE MANUAL  
12E300  
Illustrated Parts List  
Model Series  
12E300  
TYPE NUMBERS  
0018 through 0275.  
TABLE OF CONTENTS  
Blower Housing/Shrouds . . . . . . . . . . . . 6  
Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Crankcase Cover . . . . . . . . . . . . . . . . . . . 2  
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . 3  
Electric Starter . . . . . . . . . . . . . . . . . . . . . . 5  
Exhaust System . . . . . . . . . . . . . . . . . . . . 6  
Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
Fuel Supply . . . . . . . . . . . . . . . . . . . . . . . . 4  
Governor Spring . . . . . . . . . . . . . . . . . . . . 5  
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Kits/Gaskets Carburetor . . . . . . . . . . . 4  
Kits/Gaskets Engine . . . . . . . . . . . . . . . 2  
Kits/Gaskets Valves . . . . . . . . . . . . . . . 3  
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . 2  
Piston Group . . . . . . . . . . . . . . . . . . . . . . . 2  
Rewind Starter . . . . . . . . . . . . . . . . . . . . . . 5  
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.  
 
12E300  
1026  
635A  
383  
45  
337  
13  
5
238  
35  
122  
51  
40  
34  
868  
1029  
192  
830  
238  
36  
1022  
619  
155  
40  
33  
1034  
993  
7
1095 VALVE GASKET SET  
51  
1023  
914A  
914B  
1022  
868  
993  
1022  
7
914  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
57503  
Assemblies include all parts shown in frames.  
06/18/2008  
3
 
12E300  
121 CARBURETOR OVERHAUL KIT  
125A  
109C  
127  
134  
104  
122  
51  
276  
127A  
633  
633A  
137  
109B  
633  
98  
633  
127  
97  
633A  
977 CARBURETOR GASKET SET  
276  
108  
692  
633  
137  
51  
633A  
130  
95  
186  
127A  
134  
51  
365  
122  
51  
133  
137  
104  
118  
276  
975  
276  
276  
117  
972  
187  
187B  
957  
601  
601  
187A  
601  
958  
190  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
57504  
Assemblies include all parts shown in frames.  
06/18/2008  
4
 
12E300  
485  
222  
427  
773  
222G  
504  
427  
773  
227  
562  
1230  
271A  
668  
271A  
668  
188  
1230  
504  
505  
188  
621  
190  
621  
268  
270  
271  
632  
269  
209  
209A  
474A  
474  
608A  
597  
456  
689  
459  
1119  
1210  
526  
493C  
318A  
58  
501  
1211  
493B  
60B  
55A  
1054  
892  
990  
813  
65A  
356K  
333  
309A  
930  
851  
503  
703  
334  
1148  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
57505  
Assemblies include all parts shown in frames.  
06/18/2008  
5
 
12E300  
472  
663  
1011  
472B  
318  
528  
1196A  
663  
281A  
1224  
493A  
731  
996  
11B  
1196  
1252  
976  
1251  
604A  
23  
1005A  
1036 EMISSIONS LABEL  
363  
304  
1070  
1005  
455  
332A  
37  
65  
78  
305  
613A  
824  
836C  
300  
613  
819  
883  
864  
863  
832A  
823  
883A  
836B  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
57506  
Assemblies include all parts shown in frames.  
06/18/2008  
6
 
12E300  
REF.  
NO.  
PART  
NO.  
REF.  
NO.  
PART  
NO.  
REF.  
NO.  
PART  
NO.  
DESCRIPTION  
DESCRIPTION  
DESCRIPTION  
1
2
699510 Cylinder Assembly  
399269 KitBushing/Seal  
(Magneto Side)  
26  
791969 Ring Set  
65  
699228 Screw  
(Rewind Starter)  
699851 Screw  
(Rewind Starter)  
699205 Screw  
(Flywheel Guard)  
691636 Screw  
(Throttle Valve)  
(Standard)  
(Used After Code Date  
05060600).  
65A  
78  
3 K299819S SealOil  
(Magneto Side)  
699486 HeadCylinder  
−−−−−−− Note −−−−−  
499631 Ring Set  
(Standard)  
(Used Before Code  
Date 05060700).  
791324 Ring Set  
(.020” Oversize)  
(Used After Code Date  
05060600).  
692786 Ring Set  
(.020” Oversize)  
(Used Before Code  
Date 05060700).  
5
7 K698210 GasketCylinder Head  
95  
11B  
695745 TubeBreather  
12 K699485 GasketCrankcase  
13  
97  
98  
690024 ShaftThrottle  
398185 KitIdle Speed  
699482 Screw  
(Cylinder Head)  
104 D691242 PinFloat Hinge  
15  
15B  
16  
691686 PlugOil Drain  
695757 PlugOil Drain  
699445 Crankshaft  
108  
109B  
109C  
117  
695807 ValveChoke  
695729 ShaftChoke  
791957 ShaftChoke  
690048 JetMain  
(Standard)  
−−−−−−− Note −−−−−  
699454 Crankshaft  
Used on Type No(s).  
0275.  
118  
121  
498977 JetMain  
27  
28  
29  
30  
691866 LockPiston Pin  
(High Altitude)  
792006 KitCarburetor  
Overhaul  
499423 PinPiston  
690124 RodConnecting  
791584 DipperConnecting  
Rod  
691664 Screw  
(Connecting Rod)  
695759 Screw  
(Connecting Rod)  
499642 ValveExhaust  
499641 ValveIntake  
691304 SpringValve  
(Intake)  
691304 SpringValve  
(Exhaust)  
699661 GuardFlywheel  
692194 RetainerValve  
690977 TappetValve  
696813 Camshaft  
695285 Camshaft  
18  
18B  
699804 CoverCrankcase  
699677 CoverCrankcase  
20 K692550 SealOil  
122 D693749 SpacerCarburetor  
(PTO Side)  
125A  
794587 Carburetor  
127 D694468 PlugWelch  
127A D691739 PlugWelch  
32  
20A K691952 SealOil  
(PTO Side)  
(Auxiliary Drive)  
32A  
130  
133  
691181 ValveThrottle  
398187 FloatCarburetor  
21 281658S CapOil Fill  
33  
34  
35  
22  
23  
699478 Screw  
(Crankcase Cover/  
Sump)  
699516 Flywheel  
134 D398188 KitNeedle/Seat  
137 Dz693981 GasketFloat Bowl  
146  
155  
186  
187  
690979 KeyTiming  
698214 PlateCylinder Head  
692317 ConnectorHose  
791766 LineFuel  
(Cut to Required  
Length)  
791867 LineFuel  
(Molded)  
791874 LineFuel  
(Molded)  
699479 Screw  
(Control Bracket)  
699220 Screw  
36  
24 222698S KeyFlywheel  
25  
791968 Piston Assembly  
(Standard)  
37  
40  
45  
46  
46A  
−−−−−−− Note −−−−−  
791326 Piston  
Assembly  
(.020” Oversize)  
187A  
187B  
188  
51KzD692555 GasketIntake  
55A  
696710 HousingRewind  
Starter  
693389 RopeStarter  
(Cut To Required  
Length)  
58  
190  
(Fuel Tank)  
60B  
699334 GripStarter Rope  
192  
694543 BallRocker Arm  
K Included in Engine Gasket SetRef. No.358.  
D Included in Carburetor Overhaul KitRef. No. 121.  
z Included in Carburetor Gasket SetRef. No. 977.  
Included in Valve Gasket SetRef. No 1095.  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
57507  
Assemblies include all parts shown in frames.  
06/18/2008  
7
 
12E300  
REF.  
NO.  
PART  
NO.  
REF.  
NO.  
PART  
NO.  
REF.  
NO.  
PART  
NO.  
DESCRIPTION  
DESCRIPTION  
DESCRIPTION  
209  
209A  
219  
692571 SpringGovernor  
691278 SpringGovernor  
693578 GearGovernor  
691724 Washer  
304  
305  
699598 HousingBlower  
699480 Screw  
(Blower Housing)  
695710 ShieldCylinder  
699483 Screw  
(Cylinder Shield)  
699234 Screw  
(Cylinder Shield)  
696818 MotorStarter  
−−−−−−− Note −−−−−  
699786 MotorStarter  
Used on Type No(s).  
0275.  
690370 Screw  
(Mounting Bracket)  
790537 Screw  
474  
694457 Alternator  
−−−−−−− Note −−−−−  
793640 Alternator  
Used on Type No(s).  
0275.  
220  
306A  
307  
(Governor Gear)  
222  
222G  
227  
699592 BracketControl  
(Used Before Code  
Date 06051500).  
793109 BracketControl  
(Used After Code Date  
06051400).  
692573 LeverGovernor  
Control  
691300 CapValve  
691025 Control Wire Casing  
(Cut to Required  
Length)  
691026 Control Wire  
(Cut to Required  
Length)  
691027 Nut  
474A  
485  
493A  
493B  
493C  
501  
503  
504  
505  
698314 Alternator  
307A  
309A  
695755 KnobControl  
695744 BracketMounting  
691177 BracketMounting  
699048 BracketMounting  
698315 Regulator  
699889 StrapStarter  
694254 Washer SetFriction  
691251 Nut  
(Governor Control  
Lever)  
693618 Dipstick  
−−−−−−− Note −−−−−  
790546 Dipstick  
238  
268  
318  
318A  
(Mounting Bracket)  
(Used After Code Date  
04110800).  
−−−−−−− Note −−−−−  
699773 Screw  
523  
269  
270  
Used on Type No(s).  
0275.  
281370 SealDipstick Tube  
793006 Screw  
(Control Wire Casing)  
691028 LeverControl  
698038 LeverControl  
(Mounting Bracket)  
(Used Before Code  
Date 04110900).  
792723 Nut  
(Flywheel)  
695711 ArmatureMagneto  
699477 Screw  
524  
526  
271  
271A  
276 Dz271716 WasherSealing  
281A 793131 PanelControl  
(Used After Code Date  
332A  
(Regulator)  
528  
552  
793006 HosePrimer  
692346 BushingGovernor  
Crank  
333  
334  
06051400).  
−−−−−−− Note −−−−−  
697550 PanelControl  
(Used Before Code  
Date 06051500).  
793122 PanelControl  
(Used After Code Date  
06051400).  
Used on Type No(s).  
0275.  
696684 PanelControl  
(Used Before Code  
Date 06051500).  
Used on Type No(s).  
0275.  
(Magneto Armature)  
562  
597  
691119 Bolt  
337 491055S SparkPlug  
356K  
358  
363  
(Governor Control  
Lever)  
691696 Screw  
695731 WireStop  
791797 SetEngine Gasket  
19203 PullerFlywheel  
699484 Screw  
(Carburetor)  
19374S WrenchSpark Plug  
694255 Nut  
(Control Bracket)  
694262 BracketOil Fill  
699629 Screw  
(Oil Fill Bracket)  
692591 CupFlywheel  
692299 PlatePawl Friction  
(Pawl Friction Plate)  
220624 ShimEnd Play  
791850 ClampHose  
793134 CoverControl  
(Used After Code Date  
06051400).  
−−−−−−− Note −−−−−  
695749 CoverControl  
(Used Before Code  
Date 06051500).  
699335 StarterRewind  
697812 Screw  
365  
598  
601  
604A  
383  
427  
441  
449  
455  
456  
300  
699512 Muffler  
608A  
613  
−−−−−−− Note −−−−−  
699511 Muffler  
Used on Type No(s).  
0018, 0100, 0111,  
0275.  
459 281505S PawlRachet  
472  
472B  
696691 KnobChoke Shaft  
791958 KnobChoke Shaft  
(Muffler)  
699480 Screw  
613A  
(Muffler)  
K Included in Engine Gasket SetRef. No.358.  
D Included in Carburetor Overhaul KitRef. No. 121.  
z Included in Carburetor Gasket SetRef. No. 977.  
Included in Valve Gasket SetRef. No 1095.  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
57508  
Assemblies include all parts shown in frames.  
06/18/2008  
8
 
12E300  
REF.  
NO.  
PART  
NO.  
REF.  
NO.  
PART  
NO.  
REF.  
NO.  
PART  
NO.  
DESCRIPTION  
DESCRIPTION  
DESCRIPTION  
615  
692576 RetainerGovernor  
Shaft  
692547 CrankGovernor  
699480 Screw  
(Cylinder Head Plate)  
692310 SwitchStop  
692653 Spring/Link−  
Mechanical Governor  
842  
847  
691031 SealO Ring  
(Dipstick Tube)  
693617 Dipstick/Tube  
Assembly  
1011  
1019  
794544 TubeVent  
792211 KitLabel  
616  
619  
1022 K691890 GasketRocker Cover  
1023  
1026  
1029  
1034  
1036  
499924 CoverRocker Arm  
790287 RodPush  
691230 ArmRocker  
691343 GuidePush Rod  
LabelEmissions  
(Available From An  
Authorized Briggs &  
Stratton Sevice  
Dealer)  
−−−−−−− Note −−−−−  
790545 Dipstick/Tube  
Assembly  
Used on Type No(s).  
0275.  
621  
632  
633 Dz693867 SealChoke/Throttle  
851 493880S TerminalSpark Plug  
863  
864  
Shaft  
633A Dz691321 SealChoke/Throttle  
Shaft  
699849 BracketMuffler  
699232 AdapterMuffler  
635A  
663  
692927 BootSparkplug  
699854 Screw  
(Control Panel)  
694257 Spacer  
691855 SpringFriction  
690572 SpringDetent  
(Choke)  
868 K692044 SealValve  
883 K692237 GasketExhaust  
883A K691893 GasketExhaust  
1054  
1058  
1070  
280275 TieCable  
277104 Operator’s Manual  
699201 Screw  
(Flywheel Fan)  
791798 Gasket SetValve  
699772 Screw  
(Alternator)  
668  
689  
692  
892  
914  
695747 SwitchKey  
699480 Screw  
1095  
1119  
(Rocker Cover)  
(Bottom)  
703  
718  
731  
741  
742  
746  
773  
813  
819  
698320 Clip  
914A  
914B  
692557 Screw  
1148  
1196  
698418 Screw  
(Clip)  
696692 Screw  
(Snow Hood)  
(Carburetor)  
696685 Screw  
(Snow Hood)  
(Muffler)  
498144 Pulley/Spring  
Assembly  
(Pulley)  
498144 Pulley/Spring  
Assembly  
690959 PinLocating  
794590 HoodSnow  
695087 GearTiming  
692564 RetainerE Ring  
790278 GearIdler  
694258 Retainer  
690635 Clamp  
699233 Screw  
(Muffler Bracket)  
699209 Screw  
(Rocker Cover)  
(Top)  
697551 Screw  
(Rocker Cover)  
(Center)  
1196A  
1210  
1211  
930  
957  
958  
972  
975  
976  
696709 GuardRewind  
792647 CapFuel Tank  
698180 ValveFuel Shut Off  
694260 TankFuel  
493640 BowlFloat  
790221 PrimerCarburetor  
(Snap Fit)  
823  
(Muffler Adapter)  
696017 GasketHeat Shield  
694544 Stud  
824  
830  
−−−−−−− Note −−−−−  
695750 Primer−  
Carburetor  
(Spring)  
696824 Nut  
(Rocker Arm)  
1224  
1230  
832A  
699892 GuardMuffler  
−−−−−−− Note −−−−−  
699313 GuardMuffler  
Used on Type No(s).  
0275.  
699209 Screw  
(Muffler Guard)  
699234 Screw  
(Carburetor Primer)  
699847 Screw  
(Control Bracket)  
696699 ShieldSnow  
699234 Screw  
(Snow Shield)  
977  
990  
792007 Gasket SetCarburetor  
695756 KeySet  
993 K694088 GasketCylinder Head  
1251  
1252  
Plate  
836B  
836C  
996  
998  
1005  
794687 ShieldCarburetor  
696683 PipeOil  
692592 FanFlywheel  
794273 FanFlywheel  
1319  
1330  
794467 LabelWarning  
272147 Repair Manual  
(Muffler Guard)  
1005A  
K Included in Engine Gasket SetRef. No.358.  
D Included in Carburetor Overhaul KitRef. No. 121.  
z Included in Carburetor Gasket SetRef. No. 977.  
Included in Valve Gasket SetRef. No 1095.  
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.  
57509  
Assemblies include all parts shown in frames.  
06/18/2008  
9
 

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