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TRACTOR
- - MODEL
NUMBER
917.274630
BRIGGS & STRATTON
ENGINE-MODEL
NUMBER 31P777, TYPE NUMBER 0348-E1
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
DESCRIPTION
1
697174
Cylinder Assembly
108
690464
Valve-Choke (Manual Choke)
2
399265
Kit-Bushing/Seal
108A
692344
Valve-Choke (Choke A Matic)
(MagnetoSide)
117
694352 O
Jet-Main (Standard)
3
391086 •
Seal-Oil (Magneto Side)
118
697228
Jet-Main (High Altitude)
4
697188
Sump-Engine
121
697241
Kit-Carburetor Overhaul
5
698147
Head-Cylinder
125
698445
Carburetor
7
699168 o+
Gasket-Cylinder
Head
127
695005
Plug-Welch
9
697109 •
Gasket-Breather
130
691750
Valve-Throttle
11
697113
Tube-Breather
131
494379
Kit-Throttle Shaft
12
697110 •
Gasket-Crankcase
133
494381
Float-Carburetor
13
690360
Screw (Cylinder Head)
137
281165 O:1: Gasket-Float Bowl
15
690946
Plug-Oil Drain
141
495097
Kit-Choke Shaft (Manual
16
697127
Crankshaft
Choke)
20
690947 •
Seal-Oil (PTO Side)
141A
495931
Kit-Choke Shaft (Choke A
22
692125
Screw (Crankcase
Matic)
CoverSump)
142
697140 O
Nozzle-Carburetor
23
693556
Flywheel
146
691639
Key-Timing
24
222698
Key-Flywheel
186
698174
Connector-Hose
25
699052
Piston Assembly (Standard)
187
697098
Line-Fuel
699054
Piston Assembly (.020"
187A
698417
Line-Fuel
Oversize)
188
691693
Screw (Control Bracket)
26
699051
Ring Set (Standard)
192
691986
Adjuster-Rocker Arm
697559
Ring Set (.020" Oversize)
202
691841
Link-Mechanical Governor
27
698469
Lock-Piston Pin
209
692208
Spring-Governor
28
697099
Pin-Piston
216
691840
Link-Choke
29
697126
Rod-Connecting (Standard)
222
694042
Bracket-Control
697263
Rod-Connecting (.020"
227
691374
Lever-Governor Control
Undersize)
232
691842
Spring-Governor
32
692852
Screw (Connecting Rod)
238
691843
Cap-Valve
33
695760
Valve-Exhaust
240
691035
Filter-Fuel
34
695761
Valve-Intake
265
691024
Clamp-Casing
35
691279
Spring-Valve (Intake)
267
695134
Screw (Casing Clamp)
36
691279
Spring-Valve (Exhaust)
276
692255 O:1: Washer-Sealing
37
697352
Guard-Flywheel
304
699829
Housing-Blower
42
691752
Keeper-Valve
305
697102
Screw (Blower Housing)
43
691968
Slinger-Governor/Oil
305A
697103
Screw (Blower Housing)
45
690564
Tappet-Valve
306
697107
Shield-Cylinder
46
698492
Camshaft
307
691003
Screw (Cylinder Shield)
48
697762
Short Block
309
693551
Motor-Starter
50
690193
Manifold-Intake
310
690323
Bolt (Starter Motor)
51
692137 oO:1:+ Gasket-Intake
311
497608
Brush Set
53
690227
Stud (Carburetor)
333
492341
Armature-Magneto
54
691148
Screw (Intake Manifold)
334
691061
Screw (Magneto Armature)
73
697133
Screen-Rotating
337
691043
Plug-Spark
74
697897
Screw (Rotating Screen)
356
697089
Wire-Stop
78
691003
Screw (Flywheel Guard)
358
697191
Gasket Set-Engine
89
690283
Plug-Oil
363
19203
Flywheel Puller
93
690602 O
Bushing-Throttle
Shaft
94
498030
Kit-Idle Mixture
°
Included in Engine Gasket Set, Key. No. 358
95
691636
Screw (Throttle Valve)
O
Included in Carburetor Overhaul Kit, Key. No.
98
495800
Kit-Idle Speed
121
104
690525 O
Pin-Float Hinge
:1:
Included in Carburetor Gasket Set, Key. No.
105
231855 O
Valve-Float Needle
977
106
691780 O
Seat-Inlet
+
Included in Valve Gasket Set, Key. No. 1095
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
48
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