Manual

CRAFTSMAN 4-CYCLE ENGINE MODEL:143.993506
Ref.
No.
1
2
6
7
12
12A
12B
14
15
16
17
18
19
2O
3O
40
40
40
41
41
41
42
42
42
43
45
46
48
5O
52
69
7O
72
72A
73
75
8O
81
82
83
86
89
90
92
,'030
101
163
110
119
120
125
126
130
135
150
Part
No.
37280
26727
33734
36557
36775
36558
36694
28277
30589
34839A
31335
851018
36281
32600
37141
35544A
35545A
35546
35541
35542
35543
35547A
35548A
35549
20381
36777
32610A
27241
37032
29914
"35261
34311E
30572
28534
28833
27897
30574A
30590A
30591
30588A
650488
611004
611112
650815
650816
34443B
610118
651007
36230
*37028
36825
37288
37289
6021A
35395
31672
Ref. Pa_
Pa_ Name No. No.
Cylinder (Incl. 2,20 & 150) 151 31673
Dowel Pin 151A 40017
Breather Element 169 *36783
Breather Ass'y. (Incl. 6 & 12A) 172 36784
Breather Tube 174 30200
Breather Cover & Tube (Incl. 12B) 178 29752
Breather Tube Elbow 179 30593
Washer 182 6201
Governor Rod (Incl. 14) 184 *26756
Govemor Lever 185 36785,
Governor Lever Clamp 186 34337
Screw, Torx T-15, 8-32 x 19/64 • 200 35727
Extension Spring 202 36482
Oil Seal 203 31342
Crankshaft 204 651029
Piston, Pin & Ring Set (Std.) 205 651019
Piston, Pin & Ring Set (.010 =OS) 206 610973
Piston, Pin & Ring Set (.020" OS) 207 34336
Piston & Pin Ass'y. (Std.) (Incl. 43) 209 30200
Piston & Pin Ass'y. (.010 • OS) (Incl. 215 32410
43) 223 650451
Piston & Pin Aas'y. (.020 • OS) (Incl. 224 *36786
43) 238 650932
Ring Set (Std.) 239 *34338
Ring Set (.010 • OS) 241 35797
Ring Set (.020" OS) 245 • 35066
Piston Pin Retaining Ring 250 35065
Connecting Rod Ass'y. (Incl. 46) 260 36980
Connecting Rod Bolt 261 30200
Valve Lifter 262 650831
Camshaft (NCR) 275 36790A
Oil Pump Ass'y. 277 650988
Mounting Flange Gasket 285 35000A
Mounting Flange (Incl. 72 thru 83, 287 650926
306) 290 29774
Oil Drain Plug (Incl. 73) 292 26460
Oil Drain Plug 298 28763
Drain Plug Gasket 300 36916
Oil Seal 301 36246
Govemor Shaft 305 35647
Washer i 306 36996
Governor Gear Ass'y. (Incl. 81) ,307 35499
Governor Spool 309 650562
Screw, 1/4-20 x 1-1/4" 310 35648
Flywheel Key 313 34080
Flywheel 325 37'152
Belleville Washer 370A 36261
Flywheel Nut 370B 35169
Solid State Ignition 370C 37199
Spark Plug Cover 370K 36695
Screw, Torx T-15, 10-24 x 15/16"
Ground Wire
Cylinder Head Gasket
Cylinder Head
Exhaust Valve (Std.) (Incl. 151)
Intake Valve (Std.) (Incl. 151 )
Screw, 5/16-18 x 1-1/2"
Resistor Spark Plug (RJ19LM)
Valve Spdng
PartName
Valve Spdng Cap
Intake Valve Seal
Valve Cover Gasket
Valve Cover
Screw, 10-24 x 9/16"
Nut & Lock Washer, 1/4-28
Retainer Clip
Screw, 1/4-28 x 7/8"
Carburetor To Intake Pipe Gasket
Intake Pipe
Govemor Link
Control Bracket (Incl. 202 thru 206)
Coml_ression Spring
Compression Spring
Screw, Torx T-10, 5-40 x 7/16"
Screw, Torx T-10, 6-32 x 41/64"
Terminal
Throttle Link
Screw, 10-24 x 9/16"
Control Knob
Screw, 1/4-20 x 1•
Intake Pipe Gasket
Screw, 10-32 x 49/64,"
Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover
Blower Housing
Screw, 10-24 x 9/16"
Screw, 1/4-20 x 1/2"
Muffler
Screw, 1/4-20 x 2-5/16"
Starter Cup
Screw, 8-32 x 21/64"
Fuel Line
Fuel Line Clamp
Screw, 10-32 x 35164"
Fuel Tank (Incl. 292 & 301)
Fuel (3ap
Oil Fill Tube
"O"-Ring
"O"-Ring
Screw, 10-32 x 3/8"
Dipstick
Spacer
Spdng Clip
Lubdcation Decal
Control Decal
Primer Decal
Starter Decal
*Indicates Parts Included in
Gasket Set, Ref. No. 400.
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