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CRAFTSMAN 4-CYCLE ENGINE MODELNUMBER143.976250
KEY PART KEY PART
NO. NO. DESCRIPTION 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 35801
40 36073
40 36074
40 36075
41 36070
41 36071
41
42
42
42
43
45
46
48
5O
52
69
70
72
73
75
8O
81
82
83
86
89
90
92
93
100
101
103
t10
119
120
125
125
126
126
130
135
150
151
169
172
174
178
182
184
36072
36076
36077
36O78
20381
32875A
32610A
27241
35992
29914
35261
34311D
30572
28833
27897
30574A
30590A
30591
30588A
650488
611OO4
611112
65O815
650816
34443A
610118
6510O7
34961
36477
36476
36471
36472
29314B
29315C
6021A
35395
35991
31673
27234A
32755
30200
29752
6201
26756
Cylinder (IncL 2,7,20 & 125)
Dowel Pin
Breather Element
Breather Ass'yo (IncL 6 & 12A)
Breather Cover & Tube (IncL 12B)
Breather Tube Elbow
Washer
Governor Rod (incl. 14)
Governor Lever
Governor Lever Clamp
Screw, Torx T-15, 8-32 x 19/64"
Extension Spring
Oil Seal
Crankshaft
Piston, Pin & Ring Set (Std.!,
Piston, Pin & Ring Set (o010 OS)
Piston, Pin & Ring Set(..020" OS)
Piston & Pin Ass y. (Std.) (Incl. 43)
Piston & Pin Ass'y.
(.010" OS) (Incl 43)
Piston & Pin Ass'y.
(.020" OS) (IncL 43)
Ring Set (Std.!
Ring Set (o010' OS)
Ring Set (.020' OS)
Piston Pin RetainingRing
Connecting Rod Ass y. (Incl. 46)
Connecting Rod Bolt
Valve Lifter
Camshaft (MCR)
Oil Pump Ass'y
* Mounting Flange Gasket
Mounting Flange (Incl. 72 thru 83)
Oil Drain Plug (incL 73)
Drain P_ugGasket
Oil Seal
Governor Shaft
Washer
Governor Gear Ass'y. (IncL 81)
Governor Spool
Screw, 1/4-20 x 1-1/4"
Flywheel Key
Flywheel
Belleville Washer
Flywheel Nut
Solid State ignition
Spark Plug Cover
Screw, Torx T-I5, 10_24x 15/16"
Ground Wire
* Cylinder Head Gasket
Cylinder Head
Exhaust Valve (Std.) (Inclo 151)
Exhaust Valve
(1/32" OS) (IncL 151)
Intake Valve (Std.!, (IncL 151)
Intake Valve (1/32 OS) (lncL 151)
Screw, 5t16-18 x 1-t/2"
Resistor Spark Plug (RJ19LM)
Valve Spring
Valve Spring Cap
* Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-28
Screw, 1/4-28 x 7/8"
* Carburetor To Intake Pipe Gasket
25
185 36544 Intake Pipe
186 34337 Governor Link
189 650839 Screw, 1/4-20 x 3/8"
191 36559 S E. Brake Bracket (Inclo 195)
195 610973 Terminal
200 35727 Control Bracket (IncL 202 thru 205)
202 36482 Compression Spring
203 3!342 Compression Spring
204 650549 Screw, 5-40 x 7/16
205 650777 Screw, 6-32 x 21/32"
207 34336 Throttle Link
209 30200 Screw, 10-24 x 9/16"
215 35511 Control Knob
223 650451 Screw, 1/4-20 x 1"
224 34690A * Intake Pipe Gasket
238 650932 Screw, 10-32 x 49/64"
239 34338 * Air Cleaner Gasket
241 36919 Air Cleaner Collar
245 36905 Air Cleaner Filter
250 36920 Air Cleaner Cover
260 36915 Blower Housing
261 30200 Screw, 10-24 x 9t16"
262 650831 Screw, 1/4-20 x 1/2"
263A 36921 Starter Grill
275 36473 Muffler (Incl. 277) ,,
277 650988 Screw, 1/4-20 x 2-5/16
285 35000A Starter Cup
287 650926 Screw, 8-32 x 21/64"
290 29774 Fuel Line
292 26460 Fuel Line Clamp
298 28763 Screw, 10-32 x 35/64"
300 36916 Fuel Tank (IncL 292 & 301)
301 36246 Fuel Cap
305 35647 Oil Fill Tube
306 36832 * "O"-Ring
307 35499 "O"-Ring
309 650562 Screw, 10-32 x 1/2"
310 35648 Dipstick
313 34080 Spacer
347 651038 Screw, 10-32 x 51/64"
370A 36261 Lubrication Decal
370B 35167 Control Decal
370C 36861 Primer Decal
380 632747 Carburetor (lncl. 184)
390 590702 Rewind Starter
400 36481 Gasket Set
(lncL Items Marked * in Notes)
416 36085 Spark Arrestor Kit
(IncL 416)(Optional)
417 650760 Screw, 8-32 x 3/8" (Optional)
900 -- Replacement Engine 750784A,
order from "71-999
900 -- Replacement S/B 750670A,
order from 71-999
RPM High 2900 to 3200
RPM Low 2450 to 2750
(NOTE: This engine could have been built with 590739
starter° Refer to the design of the rope pulley strength
ribs for part identification. Individual starter parts do not
interchange°) Inc!. part #'s 26756 (1),27234A (1), 33735
(I), 36832 (1), 34338 (1), 34690A (I), 35261 (1),
36477 (1)
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
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