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REPAIR PARTS
12 H.P.
38"
RSDING LAWN
TRACTOR--MODEL
NUMBER
917.254640
ENGRNE TECUMSEH
- MODEL NUMBER
143.396012
ENGINE
Ref.
No.
1
2
3
4
5
6
7
8
9
10
!1
12
13
14
15
16
17
18
19
19
19
19A
19A
19A
20
20
20
21
22
23
23A
24
25
26
27
28
28A
29
30
31
32
33
34
35
36
37
38
39
4O
41
42
43
44
45
45A
46
47
49
50
51
Part
No.
35323A
28277
35324
35520
29916
650548
35521
35319
35326
650561
35336A
35327
27652
29826
30322
29918
29216
29642
35339
35340
35341
35329
35430
35431
34866
34867
34868
31919
35330A
650908
650882
35313
35314A
35315
35316
650128
30063
*35317
3571l
31356
31927
35319
35712
31707A
35479
35321
35322
29193
65O833
32589
611093
65O88O
650881
35135
610118
650872
650814
*35306
353O7
730218
Part Name
Cylinder
Assy.
'i"i'ncL
Nos.
8
_3_
13i
Washer, Fiat
Rod, Governor
Lever, Governor
Clamp, Throttle lever
Screw, Hex washer hd., 8432 x 5/16
Spring, Control
Seal, Oil
Baffle, Blower housing
Screw, Hex washer hd. Durlok, 1/4-20
x 5/8
Crankshaft Assy. (Counterbalance)
Gear, Counterbalance
Pin, Dowe_
Screw, Hex washer hd., 10-32 x 3/4
Nut 8- Lockwasher, 8-32
Washer, E.T. Lock
Nut, Lock, 10-32
Ring, Retaining
Piston, Pin 8. Ring Assy. (Std.} (Incl.
Nos. 19A, 20 8.21)
Piston, Pin 8- Ring Assy. (.010 over-
size) (Incl. Nos. 19A, 20 8. 21)
Piston, Pin 8- Ring Assy, (.020 over-
size) (IncL Nos, 19A, 20 8- 21)
Piston 8. Pin Assy. (Std.) (incl. No. 21)
Piston 8- Pin Assy,
{.010 oversize)
{lncl. No. 21)
Piston 8. Pin Assy.
(.020 oversize)
(Incl, No. 21)
Ring Set, Piston (Std.)
Ring Set, Piston (.010 oversize)
Ring Set, Piston (.020 oversize)
Pin, Piston pin retaining
Rod Assy., Connecting (incl. Nos. 23
8. 23A)
Bolt, Connecting rod
Bolt, Connecting rod
Lifter, Valve
Camshaft (Mechanical
Compression
Release) (incl. No. 24)
Weight Assy., Counterbalance
Extension, Blower heusing
Screw, Hex hd. Seres, 10-24 x 1/2
Screw, Hex washer hd. Sems, 1/4-20
x 1/2
Gasket, Mounting flange
Flange, Mounting (Incl, Nos. 32, 33 8.
34)
Pump Assy., Oil
Plug, Oil drain
Seal, Oit
Shaft, Governor
Spacer, Governor gear
Washer, Flat
Gear Assy,, Governor
Spool, Governor
Ring, Retaining
Screw,
Hex washer hd, Powerlok,
1/4-20 x !-3/16
Key, Flywheel
Flywheel
Washer, Lock
Nut, Flywheel
Solid State Assy.
Cover, Spark plug
Stud, Solid state assy.
Screw, Hex hd. Sems, 10-24 x 1
Gasket, Cylinder head
Head Assyo, Cylinder
Vaive Guide Kit (lncl, 2 of No. 52)
Ref.
No.
52
53
53
54
54
55
56
57
58
59
6O
60A
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
8!
82
83
84
85
86
86A
87
88
89
90
9OC
91
92
93
94A
94B
94C
94E
95
96A
97
98
99
100
101
Part
No.
792035
35308
35433
35309
35432
650691
650690
650746
650692
34046
t'33481
1-3348t
35475
35310
t.33484
650168
32610A
t'33509
t'34410
33510
33507
335O8
"r'35295
35296
65O878
35297
35298
t'28264
35466
t*35299B
35300
t'65o879
t'650903
*27896
28423
28424
28425
3535O
34148
650128
35301
650128
650517
35O43
*33263
35304
35522
35524
33802
650777
35516
35523
650902
792028
"33515
35288
650738
35338A
Part Name
Ring Retaining
Valve,
Exhaust
(Std.}
Valve,
Exhaust
(1/32"
oversize)
Valve,
Intake
(Std.)
Valve,
Intake (1/32"
oversize)
Washer,
Flat
Washer,
Belleville
Screw,
Hex hd., 5/16-18
x 3/8
Screw,
Hex hd,, 5/16-!8
x t-3/4
Resistor
Spark
plug
(Champion
RL-
86C or equivalent)
"O"
Ring
"'0"
Ring
Tube,
Push rod
Housing,
Rocker
arm
"O"
Ring
Washer,
Flat
Screw,
Flanged
hex
hd.,
1/4-20
x
29/32
"0"
Ring (intake)
"0"
Ring (Exhaust)
Cap, Valve spring
Spring,
Valve
Cap, Valve
spring
keeper
"0'"
Ring
Guide,
Push rod
Stud,
Rocker
arm
Arm,
Rocker
Bearing,
Rocker
arm
Nut,
Lock (incl. No. 81)
Rod, Push
"0'"
Ring Assy.
(Incl.
No. 80}
Cover,
Rocker
arm housing
Screw,
Truss
hal.
w/sealing
Iockwasher,
8-32 x 1/2
Nut,
Hex Jam
Gasket,
Valve cover
Body,
Breather
Element,
Breather
Cover,
Valve spring
box
Tube,
Breather
Spring,
Coil
Screw,
Hex hd. Sems,
t0-24 x 1/2
Extension,
Blower
housing
Screw,
Hex hal° Sems,
10-24 x 1/2
Screw,
Hex hd. Sems, 1/4-20
x 27/32
Tube,
Carburetor
Gasket,
Carburetor
to intake pipe
Pipe, Intake
Link, Governor
Bracket
Assy.,
Control
(Incl. Nos. 94B
8 94C)
Spring,
Compression
Screw,
Fil. hd., 6-32 x 21/32
Link, Control
bracket
Link, Governor
spring
Screw,
Hexwasher
hd., Seres, 10-32x
7/16
Screw,
Hex hd. Sems, 5/16-18
x 7/8
Gasket,
intake
pipe
Brace,
Intake pipe
Screw,
Hex
washer
spinlock
hd.
thread
forming,
1/4-20
x 5/8
Housing,
Blower
_lndicates Part Included in
Gasket Set, Ref. No. 174.
43
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