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TRACTOR
- - MODEL
NUMBER
917.273281
BRIGGS ENGINE-MODEL
NUMBER 407777TYPE
NUMBER 0121-E4
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
DESCRIPTION
1
690231
Cylinder Assembly
131
499805
Throttle Shaft Kit
2
499585
Bushing-Cylinder
133
499806
Float-Carburetor
3
391086
.Seal-Oil
135
499803
Fuel Transfer Tube
4
690069
Sump-Engine
137
690994 {3 :I: Gasket-Float Bowl
5
693998
Head-Cylinder No. 1
141
499807
Choke Shaft Kit
5A
693999
Head-CylinderNo. 2
142
499808
{3 Nozzle-Carburetor
7
690962
°+ Gasket-Cylinder Head
146
690979
Key-Timing
8
499601
Breather Assembly
150
690995 {3 :I: Gasket-Nozzle
9
690937
• Gasket-Breather
160
690996
Retainer-Solenoid
10
690960
Screw (Breather Assy.)
163
691001
°+ Gasket-AffCleaner
11
690942
Tube-Breather
187
691050
Line-Fuel (Cut to Required
12
690945
• Gasket-Crankcase
Length)
13
690360
Screw (Cylinder Head)
187A 691049
Line-Fuel
15
691680
Plug-Oil Drain
188
690960
Screw (Control Bracket)
16
691046
Crankshaft
192
690083
Adjuster-Rocker Arm
20
690947
• Seal-Oil (PTO Side)
209
697674
Spring-Governor
22
694966
Screw (Engine Sump)
211
691019
Spring-Governed Idle
23
691053
Flywheel
212
695238
Link-Throttle
24
222698
Key-Flywheel
213
691021
Bracket-Choke Control
25
499588
Piston Assembly (Std.)
216
691022
Link-Choke
25
499589
Piston Assembly/.010 O.S.)
219
698231
Gear-Governor
25
499590
Piston Assembly (.020 O.S.)
220
690412
Washer (Governor Lever)
25
499591
Piston Assembly (.030 O.S.)
222
698761
Bracket-Control
26
499604
Ring Set-Piston (Std.)
227
691048
Control Lever-Governor
26
499605
Ring Set-Piston (.010 O.S.)
231
690718
Screw (Choke Valve)
26
499606
Ring Set-Piston (.020 O.S.)
240
691035
Filter-Fuel
26
499607
Ring Set-Piston (.030 O.S.)
250
690957
Retainer-Breather
27
690975
Lock-Piston Pin
252
690956
Element-Breather
28
690229
Pin-Piston
265
691024
Clamp-Casing
29
499583
Rod-Connecting
267
695134
Screw (Casing Clamp)
32
690976
Screw (Connecting Rod)
276
690997. {3 :[: Sealing Washer
33
499596
Valve-Exhaust
287
690960
Screw (Dipstick Tube)
34
499597
Valve-Intake
304
695277
Housing-Blower
35
690963
Spring-Valve (Intake)
305
691005
Screw (Blower Housing)
36
690963
Spring-Valve (Exhaust)
309
691262
Motor-Starter
40
690964
Retainer-Valve
310
691263
Bolt-Starter Motor
42
499586
Keeper-Valve
311
497608
Brush Set
45
690977
Valve Tappet
332
691059
Nut (Flywheel)
46
690978
Cam Shaft
333
691060
Armature-Magneto
48
692714
Short Block(Replacement
334
691061
Screw (Magneto Armature)
Engine 445777-0027-E2)
337
691043
Spark Plug
50
695241
Manifold-Intake
358
499889
Gasket Set
51
690949° {3 + Gasket-Intake
363
691062
Flywheel Puller
51A
690950° {3:[: Gasket-Intake
383
690966
Wrench-Spark Plug
53
690951
Stud (Carburetor)
385
690960
Screw (Fuel Pump)
54
695240
Screw (Intake Manifold)
387
808656
Pump-Fuel
73
691055
Screen-Rotating
404
690442
Washer (Governor Crank)
74
691057
Screw (Rotating Screen)
405
697820
Screw (Back Plate)
75
691056
Washer (Flywheel)
RPM Settings:
Low Speed: 1900-2100
89
690283
Plug-Oil
High Speed: 3000-3200
95
690718
Screw (Throttle Valve)
98
499802
Idle Speed Kit
•
Included in Engine Gasket Set, Key. No. 358
104
690984
{3 Pin-Float Hinge
O
Included in Carburetor Overhaul Kit, Key.
105
690985
{3 Valve-Float Needle
No. 121
108
690986
Valve-Choke
:I:
Included in Carburetor Gasket Set, Key. No.
117
690232
{3 Jet-Main (Standard)
977
118
690989
Jet-Main (High Altitude)
+
Included in Valve Gasket Set, Key. No. 1095
121
499811
Carburetor Overhaul Kit
125
499804
Carburetor
NOTE: All component dimensions given in U.S.
130
690993
Valve-Throttle
inches 1 inch = 25.4 mm
53
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