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TRACTOR - - MODEL NUMBER 917.273823
BRIGGS & STRATTON ENGINE-MODEL NUMBER 31P777,TYPE NUMBER 0296-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 697174 Cylinder Assembly 108A 692344 Valve-Choke (Choke A Matic)
2 399265 Kit-Bushing/Seal (Magneto Side) 117 694352 _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 *+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 Q:!:Gasker-Float Bowl
15 690946 Plug-Oil Drain 141 495097 Kit-Choke Shaft (Manual Choke)
16 697127 Crankshaft 141A 495931 Kit-Choke Shaft (Choke A Matic)
20 690947 ,Seal-Oil (PTO Side) 142 697140 QNozzle-Carburetor
22 692125 Screw (Crankcase CovedSump) 146 691639 Key-Timing
23 693557 Flywheel 186 692317 Connector-Hose
24 222698 Key-Flywheel 187 697098 Line-Fuel
25 699052 PistonAssembly (Staodard) 187A 698417 Line-Fuel
-- 699054 Piston Assembly (.020 Over- 188 691693 Screw (Control Bracket)
size) 192 691986 Adjuster-Rocker Arm
26 699051 Ring Set (Standard) 202 691841 Link-Mechanical Governor
-- 697559 Ring Set (.020" Oversize) 209 692208 Spring-Governor
27 698469 Lock-Piston Pin 216 691840 Link-Choke
28 697099 Pin-Piston 222 694042 Bracket-Control
29 697126 Rod-Connecting (Standard) 227 691374 Lever-Governor Control
-- 697263 Rod-Connecting (.020 Under- 232 691842 Spring-Governor
size) 238 691843 Cap-Valve
32 692852 Screw (Connecting Rod) 240 298090 Filter-Fuel
33 695760 Valve-Exhaust 265 691024 Clamp-Casing
34 695761 Valve-intake 267 695134 Screw (Casing Clamp)
35 691279 Spring-Valve (Intake) 276 692255 Q:!:Washer-Sealing
36 691279 Spring-Valve (Exhaust) 304 699829 Housing-Blower
37 697108 Guard-Flywheel 305 697102 Screw (Blower Housing)
40 690964 Retainer-Valve 305A 697103 Screw (Blower Housing)
43 691968 Slinger-GovernodOil 306 697107 Shield-Cylinder
45 690564 Tappet-Valve 307 691003 Screw (Cylinder Shield)
46 698492 Camshaft 309 693551 Motor-Starter
48 697762 Short Block 310 690323 Bolt (Starter Motor)
50 690193 Manifold-Intake 311 497608 Brush Set
51 692137 *Q:!:+Gasket-lntake 333 492341 Armature-Magneto
53 690227 Stud (Carburetor) 334 691061 Screw (Magneto Armature)
54 691148 Screw (Intake Manifold) 337 691043 Plug-Spark
73 697133 Screen-Rotating 358 697191 Gasket Set-Engine
74 697897 Screw (Rotating Screen) 363 19203 Flywheel Puller
78 691003 Screw (Flywheel Guard) 383 89838 Wrench-Spark Plug
89 690283 Plug-Oil 385 694476 Screw (Fuel Pump)
93 690602 QBushing-Throttle Shaft 385A 690297 Screw (Fuel Pump)
94 498030 Kit-Idle Mixture
95 691636 Screw (Throttle Valve) * Included in Engine Gasket Set, Key. No. 358
98 495800 Kit-Idle Speed Q Included inCarburetor Overhaul Kit, Key. No.
104 690525 Q Pin-Float Hinge 121
105 231855 QValve-Float Needle 1: Included in Carburetor Gasket Set, Key. NO.977
106 691780 QSeat-lnlet + Included inValve Gasket Set, Key. NO.1095
108 690464 Valve-Choke (Manual Choke)
NOTE: All component dimensions given in U.S. inches
1 inch= 25.4 mm
53