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TRACTOR - - MODEL NUMBER 917.274391
BRIGGS ENGINE-MODEL NUMBER 31H777, TYPE NUMBER 0297-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
32 692852
33 695760
34 695761
35 691279
36 691279
37 697108
40 691752
43 691968
45 690564
46 698492
48 697762
50 690193
51 692137
53 690227
54 691148
73 697133
74 697897
78 691003
89 690283
93 690602
94 498030
94A 695425
95 691636
95A 690718
98 495800
98A 695408
104 690525
104A 694918
105 231855
105A 696136
.+
0
0
0
0
0
0
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)
Screw (Crankcase Cover/Sump) 127 695005
Flywheel 127A 690727
Key-Flywheel 130 691750
Piston Assembly (Standard) 130A 699500
Piston Assembly (.020" 131 494379
Oversize) 131A 699501
Ring Set (Standard) 133 494381
Ring Set (.020" Oversize) 133A 694914
Lock-Piston Pin 135 698780
Pin-Piston 137 281165
Rod-Connecting (Standard) 137A 698781
Rod-Connecting (.020" 141 495097
Undersize) 141A 698778
Screw (Connecting Rod) 142 697140
Valve-Exhaust 146 691639
Valve-intake 187 697098
Spring-Valve (Intake) 188 691693
Spring-Valve (Exhaust) 192 691986
Guard-Flywheel 202 691841
Retainer-Valve 209 692208
Slinger-Governor/Oil 216 691840
Tappet-Valve 222 694042
Camshaft 227 691374
Short Block 231 691636
Manifold-Intake 232 691842
Gasket-Intake 238 691843
Stud (Carburetor) 240 394358
Screw (intake Manifold) 265 691024
Screen-Rotating 267 695134
Screw (Rotating Screen) 276 692255
Screw (Flywheel Guard) 276A 695410
Plug-Oil 304 697783
Bushing-Throttle Shaft 305 697102
Kit-idle Mixture 305A 697103
Kit-idle Mixture (Nikki) 306 697107
Screw (Throttle Valve) 307 691003
Screw (Throttle Valve (Nikki)
Kit-idle Speed included
Kit-idle Speed (Nikki) O included
Pin-Float Hinge 121
Pin-Float Hinge (Nikki) $ included
Valve-Float Needle 977
Valve-Float Needle (Nikki) + included
O Seat-Inlet
Valve-Choke (Manual Choke)
Valve-Choke (Nikki)
O Jet-Main (Standard)
O Jet-Main (Standard) (Nikki)
Jet-Main (High Altitude)
Jet-Main (High Altitude) (Nikki)
Kit-Carburetor Overhaul
Kit-Carburetor Overhaul (Nikki)
Carburetor
Carburetor (For Complete
Carburetor, Service with
698445)
Plug-Welch
O Plug-Welch (Nikki)
Valve-Throttle
Valve-Throttle (Nikki)
Kit-Throttle Shaft
Kit-Throttle Shaft (Nikki)
Float-Carburetor
Float-Carburetor (Nikki)
Tube-Fuel Transfer
O:J:Gasket-Float Bowl
O Gasket-Float Bowl (Nikki)
Kit-Choke Shaft (Manual Choke)
Kit-Choke Shaft (Nikki)
O Nozzle-Carburetor
Key-Timing
Line-Fuel
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)
O$ Washer-Sealing
Washer-Sealing
Housing-Blower
Screw (Blower Housing)
Screw (Blower Housing)
Shield-Cylinder
Screw (Cylinder Shield)
in Engine Gasket Set, Key. No. 358
in Carburetor Overhaul Kit, Key. No.
in Carburetor Gasket Set, Key. No.
in Valve Gasket Set, Key. No. 1095
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
53
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