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TRACTOR - - MODEL NUMBER 917.275751
BRIGGS ENGINE-MODEL NUMBER 31P777, TYPE NUMBER 0371-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 697174 Cylinder Assembly 121 697241 Kit-Carburetor Overhaul
2 399265 Kit-Bushing/Seal (Magneto Side) 125 697190 Carburetor
3 391086 • Seal-Oil (Magneto Side) 127 695005 Plug-Welch
4 697188 Sump-Engine 130 691750 Valve-Throttle
5 698147 Head-Cylinder 131 494379 Kit-Throttle Shaft
7 699168 o+ Gasket-Cylinder Head 133 494381 Float-Carburetor
9 697109 • Gasket-Breather 137 281165 O$ Gasket-Float Bowl
11 697113 Tube-Breather 141 495097 Kit-Choke Shaft (Manual Choke)
12 697110 • Gasket-Crankcase 141A 495931 Kit-Choke Shaft (Choke A Matic)
13 690360 Screw (Cylinder Head) 142 697140 O Nozzle-Carburetor
15 690946 Plug-Oil Drain 146 691639 Key-Timing
16 697127 Crankshaft 186 698174 Connector-Hose
20 690947 • Seal-Oil (PTO Side) 187 699331 Line-Fuel
22 692125 Screw (Crankcase Cover/Sump) 188 691693 Screw (Control Bracket)
23 693556 Flywheel 192 691986 Adjuster-Rocker Arm
24 222698 Key-Flywheel 202 691841 Link-Mechanical Governor
25 699052 Piston Assembly (Standard) 209 692208 Spring-Governor
-- 699054 Piston Assembly (.020" Over- 216 691840 Link-Choke
size) 222 694042 Bracket-Control
26 699051 Ring Set (Standard) 227 691374 Lever-Governor Control
-- 697559 Ring Set (.020" Oversize) 232 691842 Spring-Governor
27 698469 Lock-Piston Pin 238 691843 Cap-Valve
28 697099 Pin-Piston 240 394358 Filter-Fuel
29 697126 Rod-Connecting (Standard) 265 691024 Clamp-Casing
-- 697263 Rod-Connecting (.020" Under- 267 695134 Screw (Casing Clamp)
size) 276 692255 O$ Washer-Sealing
32 692852 Screw (Connecting Rod) 304 699829 Housing-Blower
33 695760 Valve-Exhaust 305 697102 Screw (Blower Housing)
34 695761 Valve-Intake 305A 697103 Screw (Blower Housing)
35 691279 Spring-Valve (Intake) 306 697107 Shield-Cylinder
36 691279 Spring-Valve (Exhaust) 307 691003 Screw (Cylinder Shield)
37 697108 Guard-Flywheel 309 693551 Motor-Starter
42 690964 Retainer-Valve 310 690323 Bolt (Starter Motor)
43 691968 Slinger-Governor/Oil 311 497608 Brush Set
45 690564 Tappet-Valve 333 492341 Armature-Magneto
46 790400 Camshaft 334 691061 Screw (Magneto Armature)
48 697762 Short Block 337 691043 Plug-Spark
50 690193 Manifold-Intake 356 697089 Wire-Stop
51 692137.0_+ Gasket-Intake 358 697191 Gasket Set-Engine
53 690227 Stud (Carburetor) 363 19203 Flywheel Puller
54 691148 Screw (intake Manifold) 383 89838 Wrench-Spark Plug
73 697133 Screen-Rotating 404 691691 Washer (Governor Crank)
74 697897 Screw (Rotating Screen) 431 697122 Elbow-Intake
78 691003 Screw (Flywheel Guard) 445 697153 Filter-Air Cleaner Cartridge
89 690283 Plug-Oil 462 691261 Washer (Starter Cable)
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 _ Included in Carburetor Gasket Set, Key. No.
105 231855 O Valve-Float Needle 977
106 690577 O Seat-Inlet + Included in Valve Gasket Set, Key. No. 1095
108 690464 Valve-Choke (Manual Choke)
108A 692344 Valve-Choke (Choke A Matic) NOTE: All component dimensions given in U.S. inches
117 694352 O Jet-Main (Standard) 1 inch = 25.4 mm
118 697228 Jet-Main (High Altitude)
52
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