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CRAFTSMAN
4-CYCLE
ENGINE
MODEL NUMBER 143.975038
KEY
PART
NO.NO.
DESCRIPTION
1
36478A
2
26727
6
33734
7
36557
12A
36558
12B
34695
14
28277
15
30589
16
32651
17
31335
18
651018
19
36281
20
32600
30
35798
40
36073
40
36074
40
36075
41
36070
41
36071
41
36072
42
36076
42
36077
42
36078
43
20381
45
30963B
46
32610A
48
27241
50
35992
52
29914
69
35261
70
36995
72
36083
75
27897
80
30574A
81
30590A
82
30591
83
30588A
86
650488
89
611004
90
611112
92
650815
93
650816
100
34443A
101
610118
103
651007
110
34961
119
36477
120
36476
125
36471
125
36472
126
29314B
126
29315C
130
6021A
135
35395
150
35991
181
31673
169
27234A
172
32755
174
30200
178
29752
182
6201
184
26756
185
36544
KEY
PART
NO.
NO.
DESCRIPTION
Cylinder (Incl. 2,7,20 & 125)
186
34337
Dowel Pin
189
650839
BreatherElement
191
36559
BreatherAss'y. (Incl. 6 & 12A)
195
610973
BreatherCover & Tube (Incl. 12B)
200
35727
BreatherTube Elbow
Washer
202
36482
GovernorRod (IncL14)
203
31342
GovernorLever
204
651029
GovernorLever Clamp
205
651019
Screw, Torx T-15, 8-32 x 19/64"
207
34336
ExtensionSpring
209
30200
Oil Seal
215
32410
Crankshaft
223
650451
Piston,Pin & Ring Set (Std.)
224
34690A
Piston,Pin & Ring Set (.010" OS)
238
650932
Piston,Pin & Ring Set (.020" OS)
239
34338
Piston& Pin Ass'y.(Std.) (Incl. 43)
241
35797
Piston& Pin Ass'y.
245
35066
(.010" OS) (IncL43)
250
35065
Piston& Pin Ass'y.
260
36915
(.020" OS) (Incl. 43)
261
30200
Ring Set (Std,)
282
650831
Ring Set (.010" OS)
275
36473
Ring Set (.020" OS)
277
650988
PistonPin RetainingRing
285
35000A
ConnectingRod Ass'y.(Incl. 46)
287
650928
ConnectingRod Bolt
290
29774
Valve Lifter
292
26460
Camshaft (MCR)
298
28763
Oil Pump Ass'y.
300
36£,16
Mounting Flange Gasket
301
36246
Mounting Flange (Incl. 72 thru 83)
305
35647
Oil Drain Plug
306
36996
Oil Seal
307
35499
Govemor Shaft
309
650562
Washer
310
35648
GovernorGear Ass'y, (Incl. 81)
313
34080
Governor Spool
370A
36261
Screw, 1/4-20 x 1-1/4"
370B
35167
Flywheel Key
370C
36861
Flywheel
370K
36695
BellevilleWasher
380
632747
Flywheel Nut
390
590694
Solid State Ignition
416
36085
Spark PlugCover
Screw, TorxT-15, 10-24 x 15/16"
417
650760
GroundWire
900
--
Cylinder Head Gasket
CylinderHead
900
--
Exhaust Valve (Std.) (Incl. 151)
Exhaust Valve (1/32" OS)
400
36481
(Incl. 151)
Intake Valve (Std.) (IncL161)
Intake Valve (1/32" OS) (Incl. 151)
Screw, 5/16-18 x 1-1/2"
ResistorSpark Plug (RJ19LM)
Valve Spdng
Valve Spdng Cap
Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16'
Nut & LockWasher, 1/4-28
Screw, 1/4-28 x 7/8"
CarburetorTo Intake Pipe Gasket
Intake Pipe
GovernorLink
Screw, 1/4-20 x 3/8"
S.E. Brake Bracket(Incl. 195)
Terminal
Control Bracket(IncL.202 thru
205)
Compmsslon Spdng
Compression Spring
Screw,Torx T-10, 5-40 x 7/16"
Screw, TorxT-10, 6-32 x 41164'
Throttle Unk
Screw, 10-24 x 9/16'
ControlKnob
Screw, 1/4-20 x 1"
* Intake Pipe Gasket
Screw, 10-32 x 49/64"
AirCleaner Gasket
AirCleaner Collar
AirCleaner Filter
Air CleanerCover
BlowerHousing
Screw, 10-24 x 9/16"
Screw, 1/4-20 x 1/2"
Muffler(Incl. 277)
Screw, 1/4-20 x 2-5/16"
Starter Cup
Screw, 8-32 x 21/64"
Fuel Une
Fuel LineClamp
Screw, 10-32 x 35/64"
FuelTank (Incl. 292 & 301)
Fuel Cap
Oil Fill Tube
* "O"-Ring
"O"-Rlng
Screw, 10-32 x 1/2"
Dipstick
Spacer
Lubdcation Decal
ControlDecal
Pdmer Decal
Starter Decal
Carburetor(Incl. 184)
RewindStarter
Spark ArrestorKit
(Incl.417)(Optional)
Screw,8-32 x 3/8" (Optional)
ReplacementEngine750783A,
orderfrom 71-999
ReplacementS/B 750733A,
orderfrom 71-999
Gasket Set (IncludeItems
marked *)
RPM High 2900 to 3200
RPM Low 2450 to 2750
NOTE: This enginecouldhave been builtwith 590737
starter.
NOTE: All componentdimensions givenIn U.S. inches
1 inch= 25,4 mm
35
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