Craftsman 917.388891 Owner's Manual page 39

21" rear discharge rotary lawn mower
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BRIGGS
& STRATTON
4-CYCLE
ENGINE
MODEL NUMBER 12L902-0663-E1
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
81
691740
Lock-Muffler
Screw
597
691696
95
691636
Screw (Throttle Valve)
601
791850
97
696565
Shaft-Throttle
608
497680
104
691242
O Pin-Float Hinge
613
691340
117
498978
Jet-Main (Standard)
615
690340
118
497466
Jet-Main (High Altitude)
616
698801
121
498260
Kit-Carburetor
Overhaul
617
270344
125
498170
Carburetor
621
692310
127
694468
O Plug-Welch
633
691321
130
696564
Valve-Throttle
635
66538
133
398187
Float-Carburetor
668
493823
134
398188
O Valve-Needle/Seat
670
692294
137
693981
O_ Gasket-Float
Bowl
684
690345
163
272653 •O5 Gasket-Air Cleaner
689
691855
187
791766
Line-Fuel (Cut to Fit)
718
690959
188
693399
Screw (Control Bracket)
741
790345
190
690940
Screw (Fuel Tank)
745
691648
202
691829
Link-Mechanical
Governor
842
691031
209
699056
Spring-Governor
847
692047
222
791128
Bracket-Control
851
493880
227
690783
Control Lever-Governor
868
697338
276
271716
O5 Sealing Washer
869
691155
287
690940
Screw (Dipstick Tube)
870
690380
300
496106
Muffler
871
262001
304
695892
Housing-Blower
63709
305
691108
Screw (Blower Housing)
921
792652
306
690450
Shield-Cylinder
922
692135
307
690345
Screw (Cylinder Shield)
923
695891
332
690662
Nut (Flywheel)
957
699985
333
802574
Armature-Magneto
966
792040
334
691061
Screw (Armature Magneto)
968
692298
337
802592
Plug-Spark
969
691138
356
692390
Wire-Stop
972
699374
358
497316
Engine Gasket Set
975
493640
363
19069
Flywheel Puller
976
694395
365
692524
Screw (Carburetor)
977
498261
383
89838
Wrench-Spark
Plug
1036 792156
404
690272
Washer (Governor Crank)
1059 692311
425
690670
Screw (Air Cleaner Cover)
1210 498144
443
692523
Screw (Air Cleaner Base)
1211 498144
445
491588
Filter-Air Cleaner Cartridge
1329
455
791960
Cup-Flywheel
1330
456
692299
Plate-Pawl Friction
- -
459
281505
PawI-Ratchet
505
691251
Nut (Gov. Control Lever)
523
499621
Dipstick
524
692296
• SeaI-DipstickTube
525
495265
Tube-Dipstick
529
691923
Grommet
562
691119
Bolt (Gov. Control Lever)
584
697734
Cover-Breather
Passage
585
691879
• Gasket-Breather
Passage
592
690800
Nut (Rewind Starter)
DESCRIPTION
Screw (Pawl Friction Plate)
Clamp-Hose
Starter-Rewind
Screw (Muffler)
Retainer-Governor
Shaft
Crank-Governor
•O5 Seal-Intake Manifold
Switch-Stop
a:l: Seal-Throttle
Shaft
Boot-Spark Plug
• Spacer (Includes 2)
Spacer-Fuel Tank
Screw (Breather Cover)
Spring-Friction
Pin-Locating
Gear-Timing
Screw (Brake)
• SeaI-O Ring (Dipstick Tube)
Assembly-Dipstick/Tube
Terminal-Spark
Plug
Seal-Valve
Seat-Valve (Intake)
Seat-Valve (Exhaust)
Bushing-Guide
(Exhaust)
Bushing-Guide
(Intake)
Cover-Blower
Housing
Spring-Brake
Brake
Cap-Fuel Tank
Base-Air Cleaner Primer
Cover-Air Cleaner
Screw (Blower Cover)
Tank-Fuel
Bowl-Float
Primer-Carburetor
Set-Carburetor
Gasket
Label-Emissions
Kit-Screw/Washer
Pulley/Spring Assy. (Pulley)
Pulley/Spring Assy. (Spring)
122K02-0525
Replacement Engine
270962
Repair Manual
398067
Spark Arrester
(available accessory)
Included in Engine Gasket Set, Key No. 358
Included in Carb. Overhaul Kit, Key No. 121
:1: Included in Carb. Gasket Set, Key No. 977
NOTE: All component dimensions
given in U.S.
inches.
1 inch = 25.4 mm
39

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