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TRACTOR - - MODEL NUMBER 917.270660
BRIGGS & STRATTON ENGINE-MODEL NUMBER 28U707, TYPE NUMBER 1174-E1
KEY PART
NO. NO.
1 496412
2 399265
3 391086
4 494238
5 495858
7 273280
8 495735
9 27803
10 94621
11 281246
12 271916
271997
271996
13 94728
15 94239
16 4.98971
94196
20 291675
22 94624
23 492326
24
25
26
27
28
29
32
32A
33
34
35
37
4O
45
46
51
52
53
75
78
87
93
94
95
222698
495860
495977
4.95978
495979
495854
495852
495851
495855
263129
498319
498320
494504
495490
94695
94648
495856
4,95857
262811
2245O2
224641
262411
496884
272465
272569
94637
225136
94832
491323
281346
94O98
DESCRIPTION
Cylinder Assembly
Bearing, Cylinder
* Seal Oil
Base, Engine
Head, Cylinder
*** Gasket, Cylinder Head
Breather Assembly
* Gasket, Valve Cover
Screw,Sems
Tube, Breather
* Gasket, Crankcase Cove_ .015"
* Gasket, Crankcase Covel .005"
* Gasket, Crankcase Covel .009"
Screw,Cylinder Head
Plug, Oil Drain
Crankshaft
Timing Gear Key
* Seal, Oil
Screw,Sems, Base Mounting
Flywheel and RingGear Assem-
bly,Magneto
Key, Flywheel
Piston Assembly, Standard Size
PistonAssembly, .010" Oversize
Piston Assembly, .020" Oversize
Piston Assembly, .030" Oversize
Ring Set, Piston, Standard Size
Ring Set, Piston, .010" Oversize
Ring Set, Piston, .020" Oversize
Ring Set, Piston, .030" Oversize
Lock, Piston Pin
Pin Assy., Piston, Standard Size
Pin Assy., Piston, .005" Over-
size
Rod Assembly, Connecting
RodAssembly, Connecting,
.020" Undersize Crankpin Bore
Screw,He)( Washer Head,
1-57/64
Screw,He:<Washer Head, 1-5/8
Valve, Exhaust
Valve, Intake
Spring, Valve
Guard,Fly,#neel
Retainer, Valve Spring
Tappet, Valve
Gear, Cam
**** Gasket, Carburetor
(Carburetor to Elbow)
*** Gasket, Carburetor
(ElbowtoCylinder)
Stud,CarburetorMounting
Washer, Spring
Screw,Pan Head
* Seat, Govemor Shaft
Bushing, ThroftlaShaft
Valve, Needle
** Screw, Throttle
KEY PART
NO. NO. DESCRIPTION
98 495800 Screw, IdleSpeed
104 231789 ** Pin, FloatHinge
105 231855 ** ValveFleat
106 231854 ** Seat, InletValve
108 224558 Valve, Choke (Lmt 153)
108A 224540 Valve, Choke (Lmt 154)
111 262715 Spring Choke (Lmt 155)
117 232118 ** Jet, NeadleValve(Std.)
232119 Jet, Needle Valve (Hi-AIt.)
121 499233 Carburetor Overhaul Kit
123 94913 Screw, Elbow Mounting
125 499153 Carburetor Assembly
127 - - - ** Plug, Welch (Sold in KitOnly)
130 224539 Valve, Throttle
131 494379 Shaft and Lever, Throttle
133 494381 Float, Carburetor
137 281165 **** Gasket, Float Bowl
138 281164 **** Washer, Bowl
141 495097 Choke, Shaft Kit (Choke-A-
Matic)
141A 495931 Choke, Shaft Kit (Choke-A-
Mai_c)
142 232117 ** Nozzle, Carburetor
146 94196 Key,13mingGear
164 214047 Elbow, Carburetor
166 94555 Stud, RockerArm
171 281051 Nut, Air Cleaner Mounting
186 493496 Connector, Hose
187 298099 Une, Fuel (Cut to Suit)
188 94627 Screw,Seres
192 492160 ScrewAssembly, RockerArm
201 262767 Link,Governor
209 260695 Spring, Governor
216 262766 Unk, Choke
219 490815 Gear, Governor
222 495611 Plate, Governor Control
224 94905 Screw, Sems, AirCleaner
225 4.95157 Crank, Governor
227 493935 Lever Assembly,Governor
230 94742 Washer, Governor Crank
232 262785 Spring,Governor Link
238 262836 Cap, Valve
240 394358 Filter, Fuel(In Fuel Une)
265 221535 Clamp, Casing
284 94704 Screw, Hex Head
* Included in GasketSet (495993)
** IncludedinCarburetor )cat(499233)
*** thcluded in both Gasket Set (495993) and
Valve Overhaul Kit(495992)
**** Included in Gasket Set (495993), Carburetor
Kit (499233) and CarburetorGasket Set
(494385)
NOTE: All componentdimensionsgivenin U.S. inches
1inch = 25.4 mm
56