Craftsman 37763 Owner's Manual page 41

6.75 horsepower 21" rear discharge power propelled electric start rotary lawn mower
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_RAFTSMAN
4-CYCLE ENGINE
MODEL NUMBER 143.986718
KEY PART
NO.
NO.
DESCRIPTION
KEY PART
NO.
NO.
DESCRIPTIOI_':
_
1
36835A
2
26727
6
33734
7
36557
12
32447
12A 36558
12B
14
15
16
17
18
19
2O
30
40
41
42
43
45
46
48
50
52
69
70
36694
28277
30589
34839A
31335
651018
36281
32600
35801
35544A
35545A
35546
35541
35542
35543
35547A
35548A
35549
20381
32875A
32610A
35616
37011
29914
35261
36995
72
30572
73
28833
75
27897
80
30574A
81
30590A
82
30591
83
30588A
86
650488
89
611004
90
611044
92
650815
93
650816
100
34443B
101
610118
103
651007
110
37047
110A 36953
110B 36954
119
36738
120
36721
125
36471
36472
126
29314B
29315C
130
650912
130A650999
135
34645
150
31672
151
31673
153
36649
154
650913
Cylinder (Incl. 2 & 20)
155
35624A
Dowel Pin
157
650914
Breather Element
158
36629
Breather Ass'y. (Incl. 6 & 12A)
159
35626
Breather Tube
160
35627
Breather Cover & Tube
161
30063
(Incl.12B)
178
29752
Breather Tube Elbow
182
30088A
Washer
184
26756
Governor Rod (Incl. 14)
185
36579
Governor Lever
186
32653
Governor Lever Clamp
187
36580
Screw, Torx T-15, 8-32 x 19/64"
189
650831
Extension Spdng
191
36559
Oil Seal
195
610973
Crankshaft
196
35035
Piston, Pin &'Ring Set (Std.)
207
34336
Piston, Pin & Ring Set (.010"OS)
216
33086
Piston, Pin & Ring Set (.020"OS)
223
651044
Piston & Pin Ass'y. (Std.)
223A 651043
Piston & Pin Ass'y. (.010" OS)
224
36581
(Incl. 43)
238
650932
Piston & Pin Ass'y. (.020" OS)
239
34338
(Incl. 43)
241
36919
Ring Set (Std.)
245
36905
Ring Set (.010" OS)
250
36920
Ring Set (.020" OS)
260
37180
Piston Pin Retaining Ring
261
30063
Connecting Rod Ass'y. (Incl. 46)
262
650831
Connecting
Rod Bolt
263A 37184
Valve Lifter
275
36950
Camshaft (MCR)
276
36949
Oil Pump Ass'y.
277
651039
Mounting Flange Gasket
285
35000A
Mounting Flange
287
650926
(Incl. 72 thru 83)
290
29774
Oil Drain Plug (Incl. 73)
292
26460
Drain Plug Gasket
298
28763
Oil Seal
300
36916
Governor Shaft
301
36246
Washer
305
35647
Governor Gear Ass'y. (Incl. 81)
306
36996
Governor Spool
307
35499
Screw, 1/4-20 x 1-1/4"
309
650562
Flywheel Key
310
35648
Flywheel
313
34080
Belleville Washer
314
650767
Flywheel Nut
315
36952
Solid State Ignition
322
35013
Spark Plug Cover
322A 610885
Screw, Ton(T-15,10-24
x 15/16"
325
35249
Ground Wire
325A 37152
Ground Wire
325B 29443
D.C. Starter Wire
341A 36578
Cylinder Head Gasket
347
651038
Cylinder Head
370A 36261
Exhaust Valve (Std.) (Incl. 151)
370C 37199
Exhaust Valve (1/32" OS)
380
640160
(Incl. 151)
390
590739
Intake Valve (Std.) (Incl. 151)
395
35709
Intake Valve (1/32" OS)
400
36806B
(Incl. 151)
900
Screw, 5/16-18 x 1-1/2"
900
Screw, 5/16-18 x 2-41/64"
from 71-999
Resistor Spark Plug (RN4C)
Valve Spdng
Valve Spring Cap
Push Rod Guide
Rocker Arm Stud
Rocker Arm
Lock Nut
Push Rod
Rocker Arm Cover Gasket
Rocker Arm Housing
Screw, Torx T-30, 1/4-20 x 1/2"
Nut & Lock Washer, 114-28
Screw, 1/4-28 x 1"
Carburetor Gasket
Intake Pipe
Governor Link
Spacer
Screw, 1/4-20 x 1/2"
S.E, Brake Ass'y. (Incl. 195)
Terminal
Power Restart Switch
....
Thlottie Unk
R.P.M. Adjusting Lever
Screw, 1/4-20 x 2-25/32"
Screw, 1/4-20 x 1-31/64"
Intake Pipe Gasket
Screw, 10-32 x 49/64"
Air Cleaner Gasket
Air Cleaner Collar
Air Cleaner Filter
Air Cleaner Cover
Blower Housing
Screw, Torx T-30, 1/4-20 x 1/2"
Screw, 1/4-20 x 1/2"
Starter Grill
Muffler (Incl. 276 & 277)
Locking Plate
Screw, 1/4-20 x 2-47/64"
Starter Cup
Screw, 8-32 x 21/64"
Fuel Line
Fuel Une Clamp
Screw, 10-32 x 35/64"
Fuel Tank (Incl. 292 & 301)
Fuel Cap
Oil Fill Tube
_O'-Ring
"O"-Ring
Screw, 10-32 x 1/2"
Dipstick
Spacer
....
Screw, 8-32 x 27/64"
Alternator Coil
Connector Body
Connector Body
Spring Clip
Spring Clip
Spring Clip
Blower Housing Support Bracket
Screw, 10-32 x 27132"
Lubrication Decal
Pdmer Decal
Carburetor (IncL 184)
Rewind Starter
Electric Starter Motor (12 Volt)
Gasket Set (Incl. Items Marked *)
Replacement Engine NONE
Replacement S/B 750834, order
RPM High 3000 to 3300
NOTE: This engine could have been_uilt
with 590702 starter.
41

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