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TRACTOR - - MODEL NUMBER 917.273380
BRIGGS & STRATTON ENGINE-MODEL NUMBER 31C707,TYPE NUMBER 0230-E1
KEY PART KEY PAI[T
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 697174
2 399265
3 391086
4 697106
5 698147
7 692410
9 697109
10 697157
11 697113
12 697110
13 690360
15 690946
16 697127
20 690947
22 692125
23 693557
24 222698
25 697159
697160
697162
697163
26 697164
697165
697171
697172
27 697100
28 697099
29 697126
32 692852
33 495856
34 495857
35 691279
36 691279
37 697352
40 691752
43 691968
45 690564
46 697687
48 697761
50 690193
51 692137
53 690227
54 691148
73 697384
74 697987
75 690582
76 691003
93 690602
94 498030
95 691636
98 495800
104 690525
105 231855
106 690577
108 690464
106A 692344
117 694352
-O:1:+
Cylinder Assembly 118 697492
Kit-Bushing/Seal (Magneto Side) 121 697241
• Seal-Oil (Magneto Side) 125 697190
Sump-Engine 127 695005
Head-Cylinder 130 691750
•+ Gasket-Cylinder Head 131 494379
• Gasket-Breather 133 494381
Screw (Breather Assembly) 137 281165
Tube-Breather 141 495097
• Gasket-Crankcase 141A 495931
Screw (Cylinder Head) 142 697140
Plug-Oi! Drain 146 691639
Crankshaft 186 692317
• Seal-Oil (PTO Side) 187 691050
Screw (Crankcase Cover/Sump)
Flywheel 188 691693
Key-Flywheel 192 691966
Piston Assembly (Standard) 202 691841
Piston Assembly (.010" Over- 209 692208
size) 216 691840
Piston Assembly (.020" Over- 222 694042
size) 227 691374
Piston Assembly (.030" Over- 231 691636
size) 232 691842
Ring Set (Standard) 238 691843
Ring Set (.010" Oversize) 240 394358
Ring Set (.020" Oversize) 265 691024
Ring Set (.030" Oversize) 267 695134
Lock-Piston Pin 276 692255
Pin-Piston 304 698402
Rod-Connecting (Standard) 305 697102
Screw (Connecting Rod) 305A 697103
Valve-Exhaust 306 697107
Valve-Intake 307 691003
Spring-Valve (Intake) 309 693551
Spring-Valve (Exhaust) 309A ........
Guard-Flywheel
Retainer-Valve
Slinger-Governor/Oil 310 690323
Tappet-Valve 311 497608
Camshaft 311A 395538
Short Block (31C707-0230-E2 333 492341
Replacement 334 691061
Engine-art not available) 337 491055
Manifold-Intake 358 697191
Gasket-Intake 363 19203
Stud (Carburetor)
Screw (Intake Manifold) RPM Settings:
Screen-Rotating
Screw (Rotating Screen)
Washer (Flywheel)
o
Screw (Flywheel Guard) Q
Bushing-Throttle Shaft
Kit-Idle Mixture :1:
Screw (Throttle Valve)
Kit-Idle Speed +
Q Pin-Float Hinge
Q VaNe-Float Needle
(_ Seat-Inlet
Valve-Choke (Manual Choke)
Valve-Choke (Choke A Mat!c)
_) Jet-Main (Standard)
Jet-Main (High Altitude)
Kit-Carburetor Overhaul
Carburetor
Plug-Welch
Valve-Throttle
Kit-Throttle Shaft
Float-Carburetor
O:1: Gasket-Float Bowl
Kit-Choke Shaft (Manual Choke)
Kit-Choke Shaft (Choke A Mat!c)
O Nozzle-Carburetor
Key-Timing
Connector-Hose
Line-Fuel (Cut to Required
Length)
Screw (Control Bracket)
Adjuster-Rocker Arm
Link-Mechanical Governor
Spring-Governor
Link-Choke
Bracket-Control
Lever-Governor Control
Screw (Choke Valve)
Spring-Governor
Cap-Valve
Filter-Fuel
Clamp-Casing
Screw (Casing Clamp)
e_: Washer-Sealing
Housing-Blower
Screw (Blower Housing)
Screw (Blower Housing)
Shield-Cylinder
Screw (Cylinder Shield)
Motor-Starter
Motor-Starter (For Replacement
Starter Motor, See Reference
309)
Bolt (Starter Motor)
Brush Sel
Brush Set
Armature-Magneto
Screw (Magneto Armature)
Plug-Spark
Gasket Set-Engine
Flywheel Puller
Low Speed: 1900-2100
High Speed: 3000-3200
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
56
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