Owner`s manual

REPAIR PARTS
TRACTOR - - MODEL NUMBER 917.256571
BRIGGS & STRATTON ENGINE - MODEL NUMBER 42A707, TYPE NUMBER 1624-01
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 497074
2 399265
3 391086
5 493457
5A 493458
7 271867
7A 271868
8 495754
8A 222892
9 27803
I0 94382
10A 94830
11 280225
12 271703
271188
271189
13 94565
t5 94239
16 394028
94196
18 493304
20 291675
22 94724
23 491180
24 222698
25 394955
394956
394957
394958
26 394959
394960
394961
394962
27 260924
28 299691
391286
29 394306
397158
32 94671
33 390420
34 261528
35 65906
36 26828
40 221596
41 292260
42 94553
45 261368
46 213520
50 213290
51 271412
51A 81411
52 270884
53 93970
Cylinder Assembly 54 94764
Bushing 75 22251 !
* Seal, Oil 78 94834
Head. Cylinder #1 90 495181
Head. Cylinder #2 9t 495035
* Gasket, Cylinder Head #1 93 231209
"Gasket, Cylinder Head #2 94 491538
Breather Assembly #I 95 93499
Cover. Breather Cylinder #2 96 221939
(Used Only on Key #572, 97 392672
Air Baffle with Holes for Mounting) 98 91920
* Gasket, Breather 99 26157
Screw, Seres 102 271607
Screw. Sems 103 298514
Tube, Breather 104 230896
* Gasket, Crankcase, .0!5" Thick 105 394683
* Gasket, Crankcase, .005" Thick 107 491543
* Gasket. Crankcase, .009" Thick 108 223534
Screw, Cylinder Head 109 392673
Plug, Oil Drain 116 280474
Crankshaft 117 231338
Timing Gear Key 231333
Sump, Engine
*Seal, Oil 119 94152
Screw, Seres !21 491539
Flywheel 127 223472
Key, Flywheel 161 496599
Piston Assembly, Standard Size 165 94289
Piston Assembly, .010" Overstze 187 299146
Piston Assembly, .020" Oversize 188 94627
Piston Assembly, .030" Oversize 201 262683
Ring Set, Standard Size 202 262684
Ring Set, .010" Oversize 203 280997
Ring Set, .020" Oversize 205 93971
Ring Set, .030" Oversize 206 94298
Lock, Piston Pin 207 262337
Pin, Piston, Standard Size 209 262352
Pin, Piston, .005" Oversize 209A 261563
Rod, Connecting, Standard Size 219 394348
Rod, Connecting, .020" Undersize 219A 393415
Screw, Connecting Rod 222 491282
Valve, Exhaust 224 94297
Valve, Intake 227 491297
Spring, Valve Intake
Spring, Valve, Exhaust
Retainer, Valve, Intake
Retainer, Valve, Exhaust
Keeper, Valve ***
Tappet, Valve
Gear, Cam
Manifold, Intake ....
.... Gasket, Carburetor Mounting
Spacer, CarburetOr
* Gasket, Intake Manifold Mounting
Screw, Hex Head,
Carburetor to Manifold
Screw, Seres
Washer, Spring
Screw, Sems
Carburetor
Body Assembly, Upper
Bushing, Throttle Shaft
** Valve, Idle Adjust
Screw, Seres
Valve, Throttle
Shaft, Throttle
Screw, Fillister Head
Spring, Throttle Adjust
"" Gasket, Carburetor Body
Float, Carburetor
** Pin, Float Hinge
** Valve, Needle
Body Assembly, Lower
Valve, Choke
Shaft, Choke
* O-Ring
Jet, Needle Valve, Fixed
Jet, Needle Valve, Fixed,
High Altitude
Screw, Hex Head
Carburetor Kit
** Plug, Welch
Base, Air Cleaner
Nut, Wing
Line, Fuel, 28" Long (cut to Suit)
Screw
Link
Link
Crank, Bell
Screw, Hex Head
Nut, Square
Spring, Control Rod
Spring, Governor
Spring, Governor Idle
Gear, Governor
Oil Slinger
Bracket, Control
Screw, Pan Head
Lever AssemMy, Governor
* Included in Gasket Set (495868)
** Included in Carburetor Kit (491539)
Included in Carburetor Kit (491539),
and Pump Repair Kit (393397)
Included in Gasl_et Set (495868),
and Carburetor Kit (491539)
NOTE: Atf component dimensions given in U.S. inches
t inch = 25.4 mm
52