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TRACTOR
-- MODEL
NUMBER
917.277130
BRIGGS & STRATTON ENGINE-MODEL
NUMBER 28R707,TYPE
NUMBER 1147-E1
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
DESCRIPTION
1
496413
Cylinder Assembly
95A
690718
{3 Screw (Throttle Valve)
2
399269
Kit-Bushing/Seal
98
495800
Idle Speed Kit
3
391086
• Seal-Oil (Magneto Side)
98A
694907
Idle Speed Kit
4
494238
Sump-Engine
104
690525
{3 Pin-Float Hinge
5
494240
Head-Cylinder
104A 694918
{3 Pin-Float Hinge
7
271866
°+ Gasket-Cylinder Head
105
231855
{3 Valve-Float Needle
8
495735
Breather Assembly
105A 694922
{3 Valve-Float Needle
9
27803
°+ Gasket-Breather
106
690577
{3 Seat-Inlet
10
691666
Screw (Breather Assembly)
108
690464
Valve-Choke (Manual Choke)
11
692253
Tube-Breather
108A 692344
Valve-Choke (Choke A Matic)
12
692226
• Gasket-Crankcase (.015Thick,
108B 694923
Valve-Choke
Std.)
117
690880
{3 Jet-Main (Standard)
692406
• Gasket-Crankcase (.005
694925
{3 Jet-Main (High Altitude)
Thick)
121
499220
Kit-Carburetor Overhaul (Wal-
692405
• Gasket-Crankcase (.009
bro)
Thick)
121A 694930
Kit-Carburetor Overhaul (Nikki)
13
690904
Screw (Cylinder Head)
125
498027
Carburetor (Walbro)
15
690946
Plug-Oil Drain
125A 694941
Carburetor (Nikki)
16
693944
Crankshaft
127
695005
{3 Plug-Welch
20
291675
• Seal-Oil (PTO Side)
127A 694916
{3 Plug-Welch
22
692125
Screw (Engine Sump)
130
691750
Valve-Throttle
23
693557
Flywheel (Steel Ring Gear)
130A 694917
Valve-Throttle
24
222698
Key-Flywheel
130B 694917
Valve-Throttle
25
499284
Piston Assembly (Standard)
131
494885
Throttle Shaft Kit
499288
Piston Assembly (.010 O.S.)
131A 494379
Throttle Shaft Kit
499292
Piston Assembly (.020 O.S.)
131B 694909
Throttle Shaft Kit
499296
Piston Assembly (.030 O.S.)
133
494381
Float-Carburetor
26
391780
Ring Set-Piston (Standard)
133A 694914
Float-Carburetor
392331
Ring Set-Piston (Chrome,
137
281165 {3:1:Gasket-Float Bowl
Standard)
137A 694920 {3:1:Gasket-Float Bowl
391781
Ring Set-Piston (.010 O.S.)
141
495097
Choke Shaft Kit (Manual
391782
Ring Set-Piston (.020 O.S.)
Choke)
499999
Ring Set-Piston (.030 O.S.)
141A 495931
Choke Shaft Kit (Choke A
27
691299
Lock-Piston Pin
Matic)
28
498319
Pin-Piston (Standard)
141B 694913
Choke Shaft Kit
498320
Pin-Piston (.005 O.S.)
142
691434
{3 Nozzle-Carburetor (Standard)
29
494504
Rod-Connecting (Standard)
497737
Nozzle-Carburetor (High
490469
Rod-Connecting (.020 U.S.)
Altitude)
32
690356
Screw (Connecting Rod)
146
691639
Key-Timing
32A
690348
Screw (Connecting Rod)
147
694927
{3 Jet-Pilot
33
262246
Valve-Exhaust
167
692297
Seal-Air Cleaner Nut
34
262247
Valve-Intake
173
694926
Valve-Idle Mixture
35
691605
Spring-Valve (Intake)
176
691917
,+ O-Ring Seal (Air Cleaner
36
691597
Spring-Valve (Exhaust)
Base)
37
690456
Guard-Flywheel
186
692317
Connector-Hose
40
690656
Retainer-Valve (Intake)
187
691050
Line-Fuel (Cut to Required
40A
691939
Retainer-Valve (Exhaust)
Length)
42
494553
Keeper-Valve
188
691693
Screw (Control Bracket)
43
691968
Slinger-Governor/Oil
202
691841
Link-Mechanical Governor
45
691811
Tappet-Valve
209
690480
Spring-Governor
46
692123
Camshaft
216
691840
Link-Choke
48
496050
Short Block (Replacement
222
694042
Bracket-Control
Engine 311707-0028-E1)
227
691374
Control Lever-Governor
50
691711
Manifold-Intake
231
691636
{3 Screw (Choke Valve)
51
692284 {3:1:Gasket-Intake
51A
272554
,+ Gasket-Intake
RPM Settings:
Low Speed: 1900-2100
53
691098
Stud (Carburetor)
High Speed: 3000-3200
54
690953
Screw (Intake Manifold)
°
Included in Engine Gasket Set, Key. No. 358
73
690492
Screen-Rotating
{3
Included in Carburetor Overhaul Kit, Key.
74
691655
Screw (Rotating Screen)
No. 121 end 121A
75
690582
Washer (Flywheel)
:I:
Included in Carburetor Gasket Set, Key. No.
78
690661
Screw (Flywheel Guard)
977 and 977A
93
690602
{3 Bushing-Throttle Shaft
+
Included in Valve Gasket Set, Key. No. 1095
94
498030
Idle Mixture Kit
95
691636
{3 Screw (Throttle Valve)
NOTE: All component dimensions given in U.S.
inches 1 inch = 25.4 mm
52
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