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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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