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REPAIR PARTS
12 HP 36" LAWN RIDER - - MODEL NUMBER 917.257462
BRIGGS & STRATTON ENGINE - MODEL NUMBER 283707, TYPE NUMBER 0217-01
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1
2
490450
399265
3 391086
5 494240
7 271866
8 391406
9 27803
10 93394
11 280100
12 271916
271997
271996
13 93723
15 94239
16 490466
94196
18 494238
20 291675
22 94305
23 492326
24
25
26
27
28
29
31
32
33
34
35
36
37
40
41
42
45
46
51
52
222698
394661
394662
394663
394664
391780
392331
391781
391782
391783
260924
299691
391286
490348
490469
222299
92909
262246
262247
65906
26828
223752
221596
292260
93630
262248
212897
272465
270872
Cylinder Assembly 53
Bearing, Cylinder (Requires Special 75
Tools For Installation) 78
* Seal, Oil 95
Head, Cylinder 98
* Gasket, Cylinder Head 104
Breather Assembly 105
* Gasket, Valve Cover 106
Screw, Sems 108
Tube, Breather 118
* Gasket, Crankcase Cover 1/64" 121
* Gasket, Crankcase Cover .005" 123
* Gasket, Crankcase Cover .009" 125
Screw, Cylinder Head 127
Plug, Oil Drain 130
Crankshaft 131
Key, Timing Gear 133
Base, Engine 137
*Seal, Oil 138
Screw, Sems, Base Mounting 141
Flywheel and Ring Gear Assembly, 142
Magneto
Key, Flywheel
Piston Assembly, Standard
Piston Assembly .010" Oversize 147
Piston Assembly .020" Oversize 164
Piston Assembly .030" Oversize 171
Ring Set, Piston, Standard Size 187
Ring Set, Piston, Chrome, Standard 188
Ring Set, Piston .010" Oversize 201
Ring Set, Piston .020" Oversize 209
Ring Set, Piston .030" Oversize 216
Lock, Piston Pin 219
Pin Assembly, Piston, Standard
Pin Assy., Piston .005" Oversize 222
Rod Assembly, Connecting
Rod Assembly, Connecting, 224
.020" Undersize Crankpin Bore 225
Lock, Connecting Rod Screw 227
Screw, Connecting Rod 230
Valve, Exhaust 232
Valve, Intake 240
Spring, Intake Valve
Spring, Exhaust Valve
Guard, Flywheel
Retainer, Intake Valve
Rotocoil, Exhaust Valve
Retainer, Exhaust Valve Rotocoil
Tappet, Valve
Gear, Cam
Gasket, Carburetor (Carburetor to
Elbow)
* Gasket, Carburetor (Elbow to
Cylinder)
94637
224061
93805
94098
494382
231789
231790
281169
224540
494383
494384
94616
494502
224539
494379
494381
281165
281164
494380
494537
494499
231794
213819
281051
393815
93535
262767
260871
262766
490815
494887
94513
231058
493935
222450
262785
394358
Stud, Carburetor Mounting
Washer, Spring
Screw, Seres
** Screw, Throttle
Screw, Idle Speed
** Pin, Float Hinge
** Valve Assembly, Inlet Needle
Inlet, Valve Seat
Valve, Choke
** Valve, Needle
Carburetor Overhaul Kit
Screw, Elbow Mounting
Carburetor Assembly
** Plug, Welch (Sold in Kit Only)
Valve, Throttle
Shaft and Lever, Throttle
Float, Carburetor
*** Gasket, Float Bowl
*'**Washer, Float Bowl Screw
** Shaft and Lever, Choke
** Nozzle / Jet, Carburetor
High Altitude Kit:
231796 Pilot, Jet, High Altitude
281164 Seal, Bowl Screw
** Pilot, Jet
Carburetor, Elbow
Nut, Air Cleaner Mounting
Line, Fuel
Screw, Sems
Link, Governor
Spring, Governor
Link, Choke
Oil Slinger, Governor Gear and
Bracket Assembly
Plate, Governor Control
Choke-A-Matic)
crew, Sems, Air Cleaner
Crank, Governor
Lever Assembly, Govemor
Washer, Governor Crank
Spring, Governor Link
Filter, Fuel
* Included in Gasket Set (494241)
*'* Included in Carburetor Overhaul Kit (494384)
*** Included in both Carburetor OverhaJJI Kit (494384)
and Carburetor Gasket Set (494385)
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm