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TRACTOR - MODEL NUMBER 917.258010
BRIGGS& STRATTONENGINE-MODELNUMBER287707,TYPENUMBER1259-E1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 496412
2 399265
3 391086
4 494238
5 691165
7 273280
8 495735
9 27803
10 691666
11 691328
12 692226
692406
692405
13 690360
15 690946
16 690136
20 291675
22 692125
23 693557
24 222698
25 499284
499288
499292
495979
26 495854
495852
495851
495855
27 691299
28 498319
498320
29 692419
499940
32 692852
33 495856
34 495857
35 691279
36 691279
37 690456
40 691752
43 691968
45 690564
46 692421
48 496050
__.linderAssembly
KJt-Bushing/Seel
_ Seal-Oil (Magneto Side)
Sump-Engine
Head-Cylinder
• Gasket-CylinderHead
Breather Assembly
• Gasket-Breather
Screw (BreatherAssembly)
Tube-Breather
• Gasket-Crankcase (.015
Thick, Std)
• Gasket-Crankcase (.005
Thick)
• Gasket-Crankcase (.009
Thick)
Screw (CylinderHead)
Plug-OilDrain
Crankshaft
• Seal-Oil
Screw (CrankcaseCover)
Flywheel
Key-Flywheel
PistonAssembly(Standard)
PistonAssembly(.010 O.S.I
PistonAssembly (.020 O.S.I
PistonAssembly(.030 O.S.;
Ring Set-Piston(Standard)
Ring Set-Piston(.010 O.S,)
Ring Set-Piston(.020 O,S.)
Ring Set-Piston(.030 O.S.)
Lock-PistonPin
Pin-Piston(Standard)
Pin-Piston(,020 O.S.)
Rod-Connecting(Standard)
Rod-Connecting(.020 U.S.)
Screw (ConnectingRod)
Valve-Exhaust
Valve-Intake
Spring-Valve (Intake)
Spring-Valve (Exhaust)
Guard-Flywheel
Retainer-Valve
Slinger-Govemor/Oil
Tappet-Valve
Camshaft
Short Block (311707-0028-
E1 Replacement Engine)
50 690193 Manifold-Intake
51 692137• _€+ Gasket-Intake
53 690227 Stud (Carburetor)
54 691148 Screw (Intake Manifold)
73 690492 Screen-Rotating
74 691655 Screw (Rotating Screen)
75 690582 Washer(Flywheel)
78 690661 Screw (Flywheel Guard)
93 690602 Bushing-Throttle Shaft
94 498030 Kit-Idle Mixture
94A 695425 Kit-Idle Mixture
95 691636 (_ Screw ('rhrottie Valve)
95A 690718 O Screw (Throttle Valve)
96 495800 Kit-Idle Speed
98A 695408 Kit-Idle Speed
104 690525 _ Pin-Float Hinge
104A 694918 _ Pin-Float Hinge
105 231855 _ Valve-Float Needle
105A 694922 _ Valve-Float Needle
106 691780 _ Seat-Inlet
108 690464 Valve-Choke
(Manual Choke)
108A 692344 Valve-Choke
(Choke-A-Matic)
108B 695419 Valve-Choke
117 692408 _ Jet-Main (Standard)
692411 Jet-Main (High Altitude)
117A 695415 _ Jet-Main (Standard)
695416 _ Jet-Main (High Altitude)
121 690191 Kit-Carburetor Overhaul
(Walbro)
121A 695427 Kit-Carburetor Overhaul
(Nikki)
125 690194 Carburetor
125A Carburetor (Nikki) (Service
with Walbro Carburetor)
127 695005 _ Plug-Welch
127A 690727 _ Plug-Welch
130 691750 Valve-Throttle
130A 695416 Valve-ThrotUe
131 494379 Kit-ThrotUe Shaft
131A 695421 Kit-Throttle Shaft
133 494381 Roat-Carburetor
133A 695914 Roat-Carburetor
137 281165 _: Gasket-Float Bowl
137A 695426 O:_ Gasket-Float Bowl
141 495097 Kit-Choke Shaft (Manual
Choke)
141A 495931 Kit-Choke Shaft (Choke-A-
Matic)
141 B 695420 Kit-Choke Shaft
142 692412 _ Nozzle-Carburetor
146 691639 Key-Timing
167 692297 Air Cleaner Stud Seal
176 691917 • O-Ring Seal (Air Cleaner)
186 692317 Connector-Hose
187 691050 Line-Fuel (Cut to Required
Length)
188 691693 Screw (Control Bracket)
192 691986 Ad ustar-Rocker Arm
202 691841 Lnk-Mechanical Governor
209 692206 Spring-Governor
216 691840 Link-Choke
217 695409 Spring-Choke Return
222 694042 Bracket-Control
227 691374 Control Lever-Governor
231 691636 _ Screw (Choke Valve)
231A 690718 O Screw (Choke Valve)
232 691842 Spring-Governor Link
238 691843 Cap-Valve
240 394358 FUter-Fual
265 691024 Clamp-Casing
267 695134 Screw (Casing Clamp)
54
RPM Settings: Low Speed: 1900-2100
High Speed: 3000-3200
• Included in Engine Gasket Set, Key. No.
358
O Included in Carburetor Overhaul Kit, Key.
No. 121 and 121A
:l: Included in Carburetor Gasket Set, Key.
No. 977 and 977A
+ Included in Valve Gasket Set, Key. No.
1095
NOTE: All componentdimensionsgiven in U.S.
inches1 inch= 25.4 mm.