108a, 187a – Craftsman 917.273631 User Manual
Page 52
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TRACTOR - - MODEL NUMBER 917.273631
BRIGGS & STRATTON ENGINE-MODEL NUMBER 31P777,TYPE NUMBER 0348-E1
KEY
NO.
PART
NO.
DESCRIPTION
KEY
NO.
PART
NO.
DESCRIPTION
1
2
3
4
5
7
9
11
12
13
15
16
20
22
23
24
25
26
27
28
29
32
33
34
35
36
37
42
43
45
46
48
50
51
53
54
73
74
78
89
93
94
95
98
104
105
106
697174
Cylinder Assembly
399265
KIt-BushIng/Seal
(MagnetoSIde)
391086 *
Seal-Oil {Magneto Side)
697188
Sump-Engine
698147
Head-Cylinder
699168 •+
Gasket-Cylinder Head
697109 •
Gasket-Breather
697113
Tube-Breather
697110 •
Gasket-Crankcase
690360
Screw (Cylinder Head)
690946
Plug-Oil Drain
697127
Crankshaft
690947 •
Seal-Oil (PTO Side)
692125
Screw (Crankcase
CoverSump)
693556
Flywheel
222698
Key-Flywheel
699052
Piston Assembly (Standard)
699054
Piston Assembly (.020”
Oversize)
699051
Ring Set (Standard)
697559
Ring Set (.020” Oversize)
698469
Lock-Piston Pin
697099
Pin-Piston
697126
Rod-Connecting (Standard)
697263
Rod-Connecting ^020”
Undersize)
692852
Screw (Connecting Rod)
695760
Valve-Exhaust
695761
Valve-Intake
691279
Spring-Valve (Intake)
691279
Spring-Valve (Exhaust)
697352
Guard-Flywheel
691752
Keeper-Valve
691968
Slinger-Governor/Oil
690564
Tappet-Valve
698492
Camshaft
697762
Short Block
690193
Manifold-Intake
692137 •0:t+Gasket-Intake
690227
Stud (Carburetor)
691148
Screw (Intake Manifold)
697133
Screen-Rotating
697897
Screw (Rotating Screen)
691003
Screw (Flywheel Guard)
690283
Plug-Oil
690602 0
Bushing-Throttle Shaft
498030
KIt-ldle Mixture
691636
Screw (Throttle Valve)
495800
Kit-Idle Speed
690525 0
Pin-Float Hinge
231855 0
Valve-Float Needle
691780 0
Seat-Inlet
108
108A
117
118
121
125
127
130
131
133
137
141
141A
142
146
186
187
187A
188
192
202
209
216
222
227
232
238
240
265
267
276
304
305
305A
306
307
309
310
311
333
334
337
356
358
363
0
t
+
690464
Valve-Choke
(Manual
Choke)
692344
Valve-Choke
(Choke
A Matic)
694352 0 Jet-Main (Standard)
697228
Jet-Main (High
Altitude)
697241
Kit-Carburetor
Cverhaul
698445
Carburetor
695005
Plug-Welch
691750
Vaive-Throttie
494379
Kit-Throttle
Shaft
494381
Float-Carburetor
281165
0t
Gasket-Float Bowl
495097
Kit-Choke Shaft (Manual
Choke)
495931
Kit-Choke Shaft (Choke A
Matic)
697140 0 Nozzle-Carburetor
691639
Key-Timing
698174
Connector-Hose
697098
Line-Fuel
698417
Line-Fuel
691693
Screw (Control Bracket)
691986
Adjuster-Rocker Arm
691841
Link-Mechanical Governor
692208
Spring-Governor
691840
Link-Choke
694042
Bracket-Control
691374
Lever-Governor Control
691842
Spring-Governor
691843
Cap-Valve
691035
Filter-Fuel
691024
Ciamp-Casing
695134
Screw (Casing Clamp)
692255
0i
Washer-Sealing
699829
Housing-Blower
697102
Screw (Blower Housing)
697103
Screw (Blower Housing)
697107
Shield-Cylinder
691003
Screw (Cylinder Shield)
693551
Motor-Starter
690323
Bolt (Starter Motor)
497608
Brush Set
492341
Armature-Magneto
691061
Screw (Magneto Armature)
691043
Plug-Spark
697089
Wire-Stop
697191
Gasket Set-Engine
19203
Flywheel Puller
Included
in Engine
Gasket Set, Key, No. 358
Included in Carburetor Overhaul Kit, Key. No.
121
Included in Carburetor Gasket Set, Key. No.
977
Included in
Valve
Gasket
Set, Key.
No. 1095
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
52