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TRACTOR - - MODEL NUMBER 917.273631
BRIGGS & STRATTON ENGINE-MODEL NUMBER 31P777, TYPE NUMBER 0348-E1
KEY
PART
NO.
NO.
1
697174
2
399265
3
391086
4
697188
5
698147
7
699168
9
697109
YW
697113
12
697110
13
690360
15
690946
16
697127
20
690947
22
692125
23
693556
24
222698
25
699052
699054
26
699051
697559
27
698469
28
697099
29
697126
697263
32
692852
33
695760
34
695764
35
691279
36
691279
37
697352
42
691752
43
691968
45
690564
46
698492
48
697762
50
690193
51
692137
53
690227
54
691148
73
697133
74
697897
78
691003
89
690283
93
690602
94
498030
95
691636
98
495800
104
690525
105
231855
106
691780
DESCRIPTION
Cylinder Assembly
Kit-Bushing/Seal
(MagnetoSide)
Seal-Oil (Magneto Side)
Sump-Engine
Head-Cylinder
Gasket-Cylinder Head
Gasket-Breather
Tube-Breather
Gasket-Crankcase
Screw (Cylinder Head)
Plug-Oil Drain
Crankshaft
Seal-Oil (PTO Side)
Screw (Crankcase
CoverSump)
Flywheel
Key-Flywheel
Piston Assembly (Standard)
Piston Assembly (.020"
Oversize)
Ring Set (Standard)
Ring Set (.020" Oversize)
Lock-Piston Pin
Pin-Piston
Rod-Connecting (Standard)
Rod-Connecting (.020"
Undersize)
Screw (Connecting Rod)
Valve-Exhaust
Valve-Intake
Spring-Valve (Intake)
Spring-Valve (Exhaust)
Guard-Flywheel
Keeper-Valve
Slinger-Governor/Oil
Tappet-Valve
Camshaft
Short Block
Manifold-Intake
*O++ Gasket-Intake
Stud (Carburetor)
Screw (Intake Manifold)
Screen-Rotating
Screw (Rotating Screen)
Screw (Flywheel Guard)
Plug-Oil
Bushing-Throttle Shaft
Kit-Idle Mixture
Screw (Throttle Valve)
Kit-Idle Speed
Pin-Float Hinge
Valve-Float Needle
Seat-Inlet
+
PART
NO.
690464
692344
694352
697228
697241
698445
695005
691750
494379
494381
281165
495097
495931
697140
691639
698174
697098
698417
691693
691986
691841
692208
691840
694042
691374
691842
691843
691035
691024
695134
692255
699829
697102
697103
697107
691003
693551
690323
497608
492341
691061
691043
697089
697191
19203
Ot
Ot
DESCRIPTION
Valve-Choke
(Manual Choke)
Valve-Choke
(Choke A Matic)
Jet-Main (Standard)
Jet-Main (High Altitude)
Kit-Carburetor Overhaul
Carburetor
Plug-Welch
Valve-Throttle
Kit-Throttle Shaft
Float-Carburetor
Gasket-Float Bowl
Kit-Choke Shaft (Manual
Choke)
Kit-Choke Shaft (Choke A
Matic)
Nozzle-Carburetor
Key-Timing
Connector-Hose
Line-Fuel
Line-Fuel
Screw (Control Bracket)
Adjuster-Rocker Arm
Link-Mechanical Governor
Spring-Governor
Link-Choke
Bracket-Control
Lever-Governor Control
Spring-Governor
Cap-Valve
Filter-Fuel
Clamp-Casing
Screw (Casing Clamp)
Washer-Sealing
Housing-Blower
Screw (Blower Housing)
Screw (Blower Housing)
Shield-Cylinder
Screw (Cylinder Shield)
Motor-Starter
Bolt (Starter Motor)
Brush Set
Armature-Magneto
Screw (Magneto Armature)
Plug-Spark
Wire-Stop
Gasket Set-Engine
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
tinch = 25.4 mm
52
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