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TRACTOR
..- MODEL
NUMBER 9!7.270510
BRIGGS & STRATTON ENGINE-MODEL NUMBER 287707, TYPE NUMBER 1255-E!
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
DESCRIPTION
1
496412
Cylinder Assembly
53
94637
Stud, Carburetor Mounting
2
399265
Bearing, Cylinder
73
224948
Screen, Flush Rotating
3
391086
*Seal, Oil
75
225136
Washer, Spring
4
494238
Base, Engine
78
94626
Screw, Sems
5
495858
Head, Cylinder
93
281346
Bushing, Throttle Shaft
7
272614
***Gasket, Cylinder Head
95
94098
**Screw, Throttle
8
495735
Breather Assembly
98
495800
Screw, Idle Speed
9
27803
*Gasket, Valve Cover
104
231789
**Pin, Float Hinge
10
94621
Screw, Sems
105
231855
"*Valve Float
11
281246
Tube, Breather
I06
231854
**Seat, Inlet Valve
12
271916
*Gasket, Crankcase Cover,
108
224540
Valve, Choke
1/64"
111
262719
Spring, Choke
271997
*Gasket, Crankcase Cover,
1t7
232118
Jet, Main (Std.)
_005"
232119
Jet, Main (Hi-AlL)
271996
*Gasket, Crankcase Cover,
118
498030
Vah,e, Needle
..009"
t21
499233
Carburetor Overhaul Kit
13
94728
Screw, Cylinder Head
123
94913
Screw, Elbow Mounting
15
94239
Plug, Ot_ Drain
125
499153
Carburetor Assembly
16
495162
Crankshaft
127
- - -
**Plug, Welch (Sold in Kit Only)
94196
Timing Gear Key
130
224539
Valve, Throttle
20
291675
*Seal, Oil
131
494379
Shaft and Lever, Throttle
22
94624
Screw, Seres, Base Mounting
133
494381
Float, Carburetor
23
492326
Flywheel and Ring Gear
137
281 I65
**'Gasket,
Float Bowl
Assembly, Magneto
138
281164
****Washer, Bowl
24
222698
Key, Flywhee!
141
495931
Shaft and Lever, Choke
25
495860
Piston Assembly, Standard Size
142
232117
Nozzle, Carburetor
495977
Piston Assembly, ,810"
Oversize
t64
214047
Elbow, Carburetor
495978
Piston Assembly, °020"
166
94555
Stud, Rocker Arm
Oversize
171
28105t
Nut, Air Cleaner Mounting
495979
Piston Assembly, .030"
!87
492790
Une, Fuel (t t" Long, Cut to
Oversize
Suit)
26
495854
Ring Set, Piston, Standard Size
188
94627
Screw, Hex Head, 3/4
495852
Ring Set, Piston, ,,010"Oversize
192
492t60
Screw Assembly, Rocker Arm
495851
Ring Set, Piston, .020" Oversize
20t
262767
Unk, Governor
495855
Ring Set, Piston, ..030" Oversize
209
260695
Spring, Govemor
27
263129
Lock, Piston Pin
216
262766
Unk, Choke
28
498319
Pin Assy,, Piston, Standard Size
219
490815
Gear, Governor
29
494504
Rod Assembly, Connecting
222
4956tl
Plate, Governor Contro_
495490
Rod Assembly, Connecting,
224
94729
Screw, Sems, Air Cleaner
;020" Undersize Crankpin Bore
25
495157
Crank, Governor
32
94695
Screw, Hex Washer Head, 1-
227
493935
Lever Assembly, Governor
57/64
230
94927
Washer, Governor Crank
32A
94646
Screw, Hex Washer Head, 1_
232
262785
Spring, Govemor Link
518
238
262836
Cap, Valve
33
495856
Vatve, Exhaust
240
394358
Filter, Fuel (In Fuel Line)
34
495857
Valve, intake
265
221535
Clamp, Casing
35
262811
Spring, Valve
NOTE: All component dimensions given in U..S_inches
37
224502
Guard, Flywheel
1 inch = 25.4 mm
40
224641
Retainer, Valve Spring
*
Included In Gasket Set (495993)
45
262411
Tappet, Valve
**
Included In Carburetor Kit (499233)
46
496884
Gear, Cam
***
Included In Both Gasket Set (495993) and
51
272465
****Gasket, Carburetor
Valve Overhaul Kit (495992)
(Carburetor to Elbow)
***"
Included In Gasket Set (495993), Carburetor Kit
52
272569
**'Gasket, Carburetor
(499233) and Carburetor Gasket Set (494385)
(Elbow tO Cylinder)
56
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