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TRACTOR - - MODEL NUMBER 917.275753
BRIGGS ENGINE-MODEL NUMBER 31P777, TYPE NUMBER 0299-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 697174
2 399265
3 391086
4 697188
5 698147
7 699168
9 697109
11 697113
12 697110
13 690360
15 690946
16 697127
20 690947
22 692125
23 693557
24 222698
25 699052
-- 699054
26 699051
-- 697559
27 698469
28 697099
29 697126
-- 697263
o+
32 692852
33 695760
34 695761
35 691279
36 691279
37 697352
40 690964
43 691968
45 690564
46 698492
48 697762
50 690193
51 692137•G_+
53 690227
54 691148
73 697133
74 697897
78 691003
89 690283
93 690602 G
94 498030
94A 695425
95 691636
95A 690718 G
98 495800
98A 695408
104 690525 Q
104A 694918 G
105 231855 G
105A 696136 G
Cylinder Assembly 106 690577
Kit-Bushing/Seal (Magneto Side) 108 690464
Seal-Oil (Magneto Side) 108A 695419
Sump-Engine 117 694352
Head-Cylinder 117A 699457
Gasket-Cylinder Head 118 697228
Gasket-Breather 118A 699458
Tube-Breather 121 697241
Gasket-Crankcase 121A 699521
Screw (Cylinder Head) 125 698445
Plug-Oil Drain 125A
Crankshaft
Seal-Oil (PTO Side) 127 695005
Screw (Crankcase Cover/Sump) 127A 690727
Flywheel 130 691750
Key-Flywheel 130A 699500
Piston Assembly (Standard) 131 494379
Piston Assembly (.020" Over- 131A 699501
size) 133 494381
Ring Set (Standard) 133A 694914
Ring Set (.020" Oversize) 135 698780
Lock-Piston Pin 137 281165
Pin-Piston 137A 698781
Rod-Connecting (Standard) 141 495097
Rod-Connecting (.020" Under- 141A 698778
size) 142 697140
Screw (Connecting Rod) 146 691639
Valve-Exhaust 187 699331
Valve-Intake 188 691693
Spring-Valve (Intake) 192 691986
Spring-Valve (Exhaust) 202 691841
Guard-Flywheel 209 692208
Retainer-Valve 216 691840
Slinger-Governor/Oil 222 694042
Tappet-Valve 227 691374
Camshaft 232 691842
Short Block 238 691843
Manifold-Intake 240 394358
Gasket-Intake 265 691024
Stud (Carburetor) 267 695134
Screw (Intake Manifold) 276 692255
Screen-Rotating 276A 695410
Screw (Rotating Screen) 304 699828
Screw (Flywheel Guard) 305 697102
Plug-Oil 305A 697103
Bushing-Throttle Shaft 306 697107
Kit-Idle Mixture 307 691003
Kit-Idle Mixture (Nikki) 309 693551
Screw (Throttle Valve)
Screw (Throttle Valve (Nikki)
Kit-Idle Speed
Kit-Idle Speed (Nikki)
Pin-Float Hinge
Pin-Float Hinge (Nikki)
Valve-Float Needle
Valve-Float Needle (Nikki)
Gi Seat-Inlet
Valve-Choke (Manual Choke)
Valve-Choke (Nikki)
G Jet-Main (Standard)
0 Jet-Main (Standard) (Nikki)
Jet-Main (High Altitude)
Jet-Main (High Altitude) (Nikko
Kit-Carburetor Overhaul
Kit-Carburetor Overhaul (Nikko
Carburetor
Carburetor (For Complete Car-
buretor, Service with 698445)
Plug-Welch
G Plug-Welch (Nikki)
Valve-Throttle
Valve-Throttle (Nikki)
Kit-Throttle Shaft
Kit-Throttle Shaft (Nikki)
Float-Carburetor
Float-Carburetor (Nikki)
Tube-Fuel Transfer
O:1: Gasket-Float Bowl
G Gasket-Float Bowl (Nikki)
Kit-Choke Shaft (Manual Choke)
Kit-Choke Shaft (Nikki)
(D Nozzle-Carburetor
Key-Timing
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)
a:l: Washer-Sealing
Washer-Sealing
Housing-Blower
Screw (Blower Housing)
Screw (Blower Housing)
Shield-Cylinder
Screw (Cylinder Shield)
Motor-Starter
• Included in Engine Gasket Set, Key. No. 358
O Included in Carburetor Overhaul Kit, Key. No.
121
:1: 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
1inch = 25.4 mm
53
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