Sears 917.25559 - Manual (Page 49)

REPAIR PARTS
12.5 HP 38“ RIDIMG LAWN TRACTOR - - MODEL NUMBER 917.255590
BRIGGS & STRATTON ENGINE» MODEL NUMBER 286707, TYPE NUMBER 0437-01
KEY PART
NO. NO.
1 490450
2 261623
3 391086
5 494240
? 271866
8 391406
9 27803
10 94621
11 280100
12 271916
271997
271996
13 94622
14 93415
15 94239
16 490466
94196
18 494238
20 291675
22 94624
23 492326
24 222698
25 394661
394662
394663
394664
26 391780
392331
391781
391782
391783
27 260924
28 299691
391286
29 490348
490469
31 222299
32 92909
33 262246
34 262247
35 65906
36 26828
37 223752
40 221596
41 292260
42 93630
45 262248
46 212897
51 281170
52 270872
53 94637
75 224061
DESCRIPTION
Cylinder Assembly
Bearing, Cylinder (Requires Special
Tools For Installation)
'Seal, Oil
Head, Cylinder
'Gasket, Cylinder Head
Breather Assembly
Gasket, Valve Cover
Screw, Sems
Tube, Breather
Gasket, Crankcase Cover 1/64"
Gasket, Crankcase Cover ,005"
Gasket, Crankcase Cover .009“
Screw, Cylinder Head 3"
Screw, Cylinder Head 3/4"
Plug, Oil brain
Crankshaft
Key, Timing Gear
Base, Engine
Seal, Oil
Screw, Sems, Base Mounting
Flywheel and Ring Gear Assembly,
Magneto
Key, Flywheel
Piston Assembly
Piston Assembly
Piston Assembly
Piston Assembly
Standard
.010" Oversize
,020" Oversize
.030" Oversize
Ring Set, Piston, Standard
Ring Set, Piston, Chrome, Standard
Ring Set, Piston .010" Oversize
Ring Set, Piston .020" Oversize
Ring Set, Piston .030" Oversize
Lock, Piston Pin
Pin Assembly, Piston, Standard
Pin Assembly, Piston .005" Over
Rod Assembly, Connecting
Rod Assembly, Connecting
.020" Undersize Crankpin Bore
Lock, Connecting Rod Screw
Screw, Connecting Rod
Valve, Exhaust
Valve, Intake
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)
Stud, Carburetor Mounting
Washer, Spring
KEY PART
NO. NO. DESCRIPTION
78 93805 Screw, Sems
95 94098 ** Screw, Throttle
98 494382 Screw, Idle Speed
104 231789 ** Pin, Float Hinge
105 231790 ** Valve Assembly, Inlet Needle
106 281169 inlet Valve Seat
108 224540 Valve, Choke
118 494383 ** Valve, Needle
121 494384 Carburetor Overhaul Kit (Includes
Items marked ** and ***)
123 94616 Screw, Elbow Mounting
125 494392 Carburetor Assembly
(Choke-A-Maiic)
130 224539 Valve. Throttle
131 494379 Shaft and Lever, Throttle
133 494381 Float, Carburetor
137 281165 *** Gasket, Float Bowl
138 281164 *** Washer, Float Bowl Screw
141 494380 **■ Shaft and Lever, Choke
142 231793 ** Nozzie/Jet, Carburetor
494499 High Altitude Kit:
231796 Pilot Jet, High Altitude
281164 Seal, Bowl Screw
147 231794 ** Pilot, Jet
164 213811 Carburetor, Elbow
171 281051 Nut, Air Cleaner Mounting
187 393815 Line. Fuel, 11" (Cut To Suit)
188 93535
Screw, Sems 3/4"
201 262767 Link, Governor
209 260871 Spring, Governor
216 262766 Link, Choke
219 490815 Oil Siinger, Governor Gear and
Bracket Assembly
222 494887 Plate, Governor Control
(Choke-A-Matic)
224 94513 Screw, Sem, Air Cleaner
225 231058 Crank, Governor, 1/4" Diameter
227 493935 Lever Assembly, Governor
230 222450 Washer, Governor Crank, 1/4" i.D,
232 262785 Spring, Governor Link
240 394358 Filter, Fuel
265 221535 , Clamp, Casing
284 94419 Screw, Clamp Mounting
284A 94326 Screw, Air Cleaner
304 224504 Housing, Blower, Red
305 94619 Screw, Sems, Blower Housing
Mounting
306 224545 Shield, Cylinder
307 94623 Screw, Sems, Cylinder Shield Mig,
308 491490 Cover, Cylinder Head
* Included in Gasket Set (494241)
** Included in Carburetor Overhaul Kit (494384)
*** included in both Carburetor Overhaul Kit (494384)
and Carburetor Gasket Set (494386)
NOTE:: All component dimensions given
1 inch = 25.4 mm
in U.S. inches
49