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TRACTOR - - MODEL NUMBER 917.275764
BRIGGS & STRATTON ENGINE-MODEL NUMBER 31P777, TYPE NUMBER 0602-E2
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 697174 Cylinder Assembly 108 692344 Valve-Choke (Choke A Matic)
2 399265 Kit-Bushing/Seal (Magneto Side) 117 694352 O 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 791888 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 O:l:Gasket-Float Bowl
15 690946 Plug-Oil Drain 141 495931 Kit-Choke Shaft (Choke A Matic)
16 697127 Crankshaft 142 697140 ONozzle-Carburetor
20 690947 ,Seal-Oil (PTO Side) 146 691639 Key-Timing
22 692125 Screw (Crankcase Cover/Sump) 186 698174 Connector-Hose
23 693557 Flywheel 187 691805 Line-Fuel
24 222698 Key-Flywheel 188 691693 Screw (Control Bracket)
25 699052 Piston Assembly (Standard) 192 691986 Adjuster-Rocker Arm
-- 699054 Piston Assembly (.020" Over- 202 691841 Link-Mechanical Governor
size) 209 692208 Spring-Governor
26 699051 Ring Set (Standard) 216 691840 Link-Choke
-- 697559 Ring Set (.020" Oversize) 222 694042 Bracket-Control
27 698469 Lock-Piston Pin 227 691374 Lever-Governor Control
28 697099 Pin-Piston 232 691842 Spring-Governor
29 791631 Rod-Connecting (Standard) 238 691843 Cap-Valve
32 692852 Screw (Connecting Rod) 240 394358 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 O:l:Washer-Sealing
36 691279 Spring-Valve (Exhaust) 304 699829 Housing-Blower
37 697352 Guard-Flywheel 305 697102 Screw (Blower Housing)
42 690964 Retainer-Valve 305A 697103 Screw (Blower Housing)
43 691968 Slinger-Governor/Oil 306 697107 Shield-Cylinder
45 690564 Tappet-Valve 307 691003 Screw (Cylinder Shield)
46 790400 Camshaft 309 693551 Motor-Starter
48 697762 Short Block 310 690323 Bolt (Starter Motor)
50 690193 Manifold-Intake 311 497608 Brush Set
51 692137 ,a:l:+Gasket-lntake 333 492341 Armature-Magneto
53 690227 Stud (Carburetor) 334 691061 Screw (Magneto Armature)
54 691148 Screw (Intake Manifold) 337 491055 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 404 691691 Washer (Governor Crank)
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 OPin-Float Hinge :1: Included in Carburetor Gasket Set, Key. No.
105 231855 OValve-Float Needle 977
106 690577 OSeat-lnlet + Included in Valve Gasket Set, Key. No. 1095
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
52